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 1.215 by jsr166, Sat Dec 10 18:11:05 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 (conformance testing mode)
12	>	* @build *
13	>	* @modules java.management
14	>	* @run junit/othervm/timeout=1000 JSR166TestCase
15	>	*/
16	>
17	>	/*
18	>	* @test
19	>	* @summary JSR-166 tck tests (whitebox tests allowed)
20	>	* @build *
21	>	* @modules java.base/java.util.concurrent:open
22	>	*          java.management
23	>	* @run junit/othervm/timeout=1000
24	>	*      -Djsr166.testImplementationDetails=true
25	>	*      JSR166TestCase
26	>	* @run junit/othervm/timeout=1000
27	>	*      -Djsr166.testImplementationDetails=true
28	>	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=0
29	>	*      JSR166TestCase
30	>	* @run junit/othervm/timeout=1000
31	>	*      -Djsr166.testImplementationDetails=true
32	>	*      -Djava.util.concurrent.ForkJoinPool.common.parallelism=1
33	>	*      -Djava.util.secureRandomSeed=true
34	>	*      JSR166TestCase
35	>	*/
36
37	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
38	+	import static java.util.concurrent.TimeUnit.MINUTES;
39	+	import static java.util.concurrent.TimeUnit.NANOSECONDS;
40	+
41	+	import java.io.ByteArrayInputStream;
42	+	import java.io.ByteArrayOutputStream;
43	+	import java.io.ObjectInputStream;
44	+	import java.io.ObjectOutputStream;
45	+	import java.lang.management.ManagementFactory;
46	+	import java.lang.management.ThreadInfo;
47	+	import java.lang.management.ThreadMXBean;
48	+	import java.lang.reflect.Constructor;
49	+	import java.lang.reflect.Method;
50	+	import java.lang.reflect.Modifier;
51	+	import java.nio.file.Files;
52	+	import java.nio.file.Paths;
53	+	import java.security.CodeSource;
54	+	import java.security.Permission;
55	+	import java.security.PermissionCollection;
56	+	import java.security.Permissions;
57	+	import java.security.Policy;
58	+	import java.security.ProtectionDomain;
59	+	import java.security.SecurityPermission;
60	+	import java.util.ArrayList;
61	+	import java.util.Arrays;
62	+	import java.util.Collection;
63	+	import java.util.Collections;
64	+	import java.util.Date;
65	+	import java.util.Enumeration;
66	+	import java.util.Iterator;
67	+	import java.util.List;
68	+	import java.util.NoSuchElementException;
69	+	import java.util.PropertyPermission;
70	+	import java.util.concurrent.BlockingQueue;
71	+	import java.util.concurrent.Callable;
72	+	import java.util.concurrent.CountDownLatch;
73	+	import java.util.concurrent.CyclicBarrier;
74	+	import java.util.concurrent.ExecutionException;
75	+	import java.util.concurrent.Executors;
76	+	import java.util.concurrent.ExecutorService;
77	+	import java.util.concurrent.ForkJoinPool;
78	+	import java.util.concurrent.Future;
79	+	import java.util.concurrent.RecursiveAction;
80	+	import java.util.concurrent.RecursiveTask;
81	+	import java.util.concurrent.RejectedExecutionHandler;
82	+	import java.util.concurrent.Semaphore;
83	+	import java.util.concurrent.SynchronousQueue;
84	+	import java.util.concurrent.ThreadFactory;
85	+	import java.util.concurrent.ThreadLocalRandom;
86	+	import java.util.concurrent.ThreadPoolExecutor;
87	+	import java.util.concurrent.TimeoutException;
88	+	import java.util.concurrent.atomic.AtomicBoolean;
89	+	import java.util.concurrent.atomic.AtomicReference;
90	+	import java.util.regex.Matcher;
91	+	import java.util.regex.Pattern;
92	+
93	+	import junit.framework.AssertionFailedError;
94	+	import junit.framework.Test;
95	+	import junit.framework.TestCase;
96	+	import junit.framework.TestResult;
97	+	import junit.framework.TestSuite;
98
99		/**
100	<	* Base class for JSR166 Junit TCK tests.  Defines some constants and
101	<	* utility methods, as well as a simple framework for helping to make
102	<	* sure that assertions failing in generated threads cause the
103	<	* associated test that generated them to itself fail (which JUnit doe
104	<	* not otherwise arrange).  The rules for creating such tests are:
100	>	* Base class for JSR166 Junit TCK tests.  Defines some constants,
101	>	* utility methods and classes, as well as a simple framework for
102	>	* helping to make sure that assertions failing in generated threads
103	>	* cause the associated test that generated them to itself fail (which
104	>	* JUnit does not otherwise arrange).  The rules for creating such
105	>	* tests are:
106		*
107		* <ol>
108		*
109	<	* <li> All assertions in code running in generated threads must use
110	<	* the forms {@link threadFail} , {@link threadAssertTrue} {@link
111	<	* threadAssertEquals}, or {@link threadAssertNull}, (not
112	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
109	>	* <li>All assertions in code running in generated threads must use
110	>	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
111	>	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
112	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
113		* particularly recommended) for other code to use these forms too.
114		* Only the most typically used JUnit assertion methods are defined
115	<	* this way, but enough to live with.</li>
115	>	* this way, but enough to live with.
116		*
117	<	* <li> If you override {@link setUp} or {@link tearDown}, make sure
118	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
117	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
118	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
119		* them. These methods are used to clear and check for thread
120	<	* assertion failures.</li>
120	>	* assertion failures.
121		*
122	<	* <li>All delays and timeouts must use one of the constants {@link
123	<	* SHORT_DELAY_MS}, {@link SMALL_DELAY_MS}, {@link MEDIUM_DELAY_MS},
124	<	* {@link LONG_DELAY_MS}. The idea here is that a SHORT is always
125	<	* discriminatable from zero time, and always allows enough time for
126	<	* the small amounts of computation (creating a thread, calling a few
122	>	* <li>All delays and timeouts must use one of the constants {@code
123	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
124	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
125	>	* discriminable from zero time, and always allows enough time for the
126	>	* small amounts of computation (creating a thread, calling a few
127		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
128		* is always discriminable as larger than SHORT and smaller than
129		* MEDIUM.  And so on. These constants are set to conservative values,
130		* but even so, if there is ever any doubt, they can all be increased
131	<	* in one spot to rerun tests on slower platforms</li>
131	>	* in one spot to rerun tests on slower platforms.
132		*
133	<	* <li> All threads generated must be joined inside each test case
134	<	* method (or <tt>fail</tt> to do so) before returning from the
135	<	* method. The {@link joinPool} method can be used to do this when
136	<	* using Executors.</li>
133	>	* <li>All threads generated must be joined inside each test case
134	>	* method (or {@code fail} to do so) before returning from the
135	>	* method. The {@code joinPool} method can be used to do this when
136	>	* using Executors.
137		*
138		* </ol>
139	+	*
140	+	* <p><b>Other notes</b>
141	+	* <ul>
142	+	*
143	+	* <li>Usually, there is one testcase method per JSR166 method
144	+	* covering "normal" operation, and then as many exception-testing
145	+	* methods as there are exceptions the method can throw. Sometimes
146	+	* there are multiple tests per JSR166 method when the different
147	+	* "normal" behaviors differ significantly. And sometimes testcases
148	+	* cover multiple methods when they cannot be tested in isolation.
149	+	*
150	+	* <li>The documentation style for testcases is to provide as javadoc
151	+	* a simple sentence or two describing the property that the testcase
152	+	* method purports to test. The javadocs do not say anything about how
153	+	* the property is tested. To find out, read the code.
154	+	*
155	+	* <li>These tests are "conformance tests", and do not attempt to
156	+	* test throughput, latency, scalability or other performance factors
157	+	* (see the separate "jtreg" tests for a set intended to check these
158	+	* for the most central aspects of functionality.) So, most tests use
159	+	* the smallest sensible numbers of threads, collection sizes, etc
160	+	* needed to check basic conformance.
161	+	*
162	+	* <li>The test classes currently do not declare inclusion in
163	+	* any particular package to simplify things for people integrating
164	+	* them in TCK test suites.
165	+	*
166	+	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
167	+	* runs all JSR166 unit tests.
168	+	*
169	+	* </ul>
170		*/
171		public class JSR166TestCase extends TestCase {
172	+	private static final boolean useSecurityManager =
173	+	Boolean.getBoolean("jsr166.useSecurityManager");
174	+
175	+	protected static final boolean expensiveTests =
176	+	Boolean.getBoolean("jsr166.expensiveTests");
177	+
178	+	/**
179	+	* If true, also run tests that are not part of the official tck
180	+	* because they test unspecified implementation details.
181	+	*/
182	+	protected static final boolean testImplementationDetails =
183	+	Boolean.getBoolean("jsr166.testImplementationDetails");
184	+
185	+	/**
186	+	* If true, report on stdout all "slow" tests, that is, ones that
187	+	* take more than profileThreshold milliseconds to execute.
188	+	*/
189	+	private static final boolean profileTests =
190	+	Boolean.getBoolean("jsr166.profileTests");
191	+
192	+	/**
193	+	* The number of milliseconds that tests are permitted for
194	+	* execution without being reported, when profileTests is set.
195	+	*/
196	+	private static final long profileThreshold =
197	+	Long.getLong("jsr166.profileThreshold", 100);
198	+
199	+	/**
200	+	* The number of repetitions per test (for tickling rare bugs).
201	+	*/
202	+	private static final int runsPerTest =
203	+	Integer.getInteger("jsr166.runsPerTest", 1);
204	+
205	+	/**
206	+	* The number of repetitions of the test suite (for finding leaks?).
207	+	*/
208	+	private static final int suiteRuns =
209	+	Integer.getInteger("jsr166.suiteRuns", 1);
210	+
211	+	/**
212	+	* Returns the value of the system property, or NaN if not defined.
213	+	*/
214	+	private static float systemPropertyValue(String name) {
215	+	String floatString = System.getProperty(name);
216	+	if (floatString == null)
217	+	return Float.NaN;
218	+	try {
219	+	return Float.parseFloat(floatString);
220	+	} catch (NumberFormatException ex) {
221	+	throw new IllegalArgumentException(
222	+	String.format("Bad float value in system property %s=%s",
223	+	name, floatString));
224	+	}
225	+	}
226	+
227	+	/**
228	+	* The scaling factor to apply to standard delays used in tests.
229	+	* May be initialized from any of:
230	+	* - the "jsr166.delay.factor" system property
231	+	* - the "test.timeout.factor" system property (as used by jtreg)
232	+	*   See: http://openjdk.java.net/jtreg/tag-spec.html
233	+	* - hard-coded fuzz factor when using a known slowpoke VM
234	+	*/
235	+	private static final float delayFactor = delayFactor();
236	+
237	+	private static float delayFactor() {
238	+	float x;
239	+	if (!Float.isNaN(x = systemPropertyValue("jsr166.delay.factor")))
240	+	return x;
241	+	if (!Float.isNaN(x = systemPropertyValue("test.timeout.factor")))
242	+	return x;
243	+	String prop = System.getProperty("java.vm.version");
244	+	if (prop != null && prop.matches(".*debug.*"))
245	+	return 4.0f; // How much slower is fastdebug than product?!
246	+	return 1.0f;
247	+	}
248	+
249	+	public JSR166TestCase() { super(); }
250	+	public JSR166TestCase(String name) { super(name); }
251	+
252	+	/**
253	+	* A filter for tests to run, matching strings of the form
254	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
255	+	* Usefully combined with jsr166.runsPerTest.
256	+	*/
257	+	private static final Pattern methodFilter = methodFilter();
258	+
259	+	private static Pattern methodFilter() {
260	+	String regex = System.getProperty("jsr166.methodFilter");
261	+	return (regex == null) ? null : Pattern.compile(regex);
262	+	}
263	+
264	+	// Instrumentation to debug very rare, but very annoying hung test runs.
265	+	static volatile TestCase currentTestCase;
266	+	// static volatile int currentRun = 0;
267	+	static {
268	+	Runnable checkForWedgedTest = new Runnable() { public void run() {
269	+	// Avoid spurious reports with enormous runsPerTest.
270	+	// A single test case run should never take more than 1 second.
271	+	// But let's cap it at the high end too ...
272	+	final int timeoutMinutes =
273	+	Math.min(15, Math.max(runsPerTest / 60, 1));
274	+	for (TestCase lastTestCase = currentTestCase;;) {
275	+	try { MINUTES.sleep(timeoutMinutes); }
276	+	catch (InterruptedException unexpected) { break; }
277	+	if (lastTestCase == currentTestCase) {
278	+	System.err.printf(
279	+	"Looks like we're stuck running test: %s%n",
280	+	lastTestCase);
281	+	//                     System.err.printf(
282	+	//                         "Looks like we're stuck running test: %s (%d/%d)%n",
283	+	//                         lastTestCase, currentRun, runsPerTest);
284	+	//                     System.err.println("availableProcessors=" +
285	+	//                         Runtime.getRuntime().availableProcessors());
286	+	//                     System.err.printf("cpu model = %s%n", cpuModel());
287	+	dumpTestThreads();
288	+	// one stack dump is probably enough; more would be spam
289	+	break;
290	+	}
291	+	lastTestCase = currentTestCase;
292	+	}}};
293	+	Thread thread = new Thread(checkForWedgedTest, "checkForWedgedTest");
294	+	thread.setDaemon(true);
295	+	thread.start();
296	+	}
297	+
298	+	//     public static String cpuModel() {
299	+	//         try {
300	+	//             Matcher matcher = Pattern.compile("model name\\s*: (.*)")
301	+	//                 .matcher(new String(
302	+	//                      Files.readAllBytes(Paths.get("/proc/cpuinfo")), "UTF-8"));
303	+	//             matcher.find();
304	+	//             return matcher.group(1);
305	+	//         } catch (Exception ex) { return null; }
306	+	//     }
307	+
308	+	public void runBare() throws Throwable {
309	+	currentTestCase = this;
310	+	if (methodFilter == null
311	+	|| methodFilter.matcher(toString()).find())
312	+	super.runBare();
313	+	}
314	+
315	+	protected void runTest() throws Throwable {
316	+	for (int i = 0; i < runsPerTest; i++) {
317	+	// currentRun = i;
318	+	if (profileTests)
319	+	runTestProfiled();
320	+	else
321	+	super.runTest();
322	+	}
323	+	}
324	+
325	+	protected void runTestProfiled() throws Throwable {
326	+	for (int i = 0; i < 2; i++) {
327	+	long startTime = System.nanoTime();
328	+	super.runTest();
329	+	long elapsedMillis = millisElapsedSince(startTime);
330	+	if (elapsedMillis < profileThreshold)
331	+	break;
332	+	// Never report first run of any test; treat it as a
333	+	// warmup run, notably to trigger all needed classloading,
334	+	if (i > 0)
335	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
336	+	}
337	+	}
338	+
339	+	/**
340	+	* Runs all JSR166 unit tests using junit.textui.TestRunner.
341	+	*/
342	+	public static void main(String[] args) {
343	+	main(suite(), args);
344	+	}
345	+
346	+	static class PithyResultPrinter extends junit.textui.ResultPrinter {
347	+	PithyResultPrinter(java.io.PrintStream writer) { super(writer); }
348	+	long runTime;
349	+	public void startTest(Test test) {}
350	+	protected void printHeader(long runTime) {
351	+	this.runTime = runTime; // defer printing for later
352	+	}
353	+	protected void printFooter(TestResult result) {
354	+	if (result.wasSuccessful()) {
355	+	getWriter().println("OK (" + result.runCount() + " tests)"
356	+	+ "  Time: " + elapsedTimeAsString(runTime));
357	+	} else {
358	+	getWriter().println("Time: " + elapsedTimeAsString(runTime));
359	+	super.printFooter(result);
360	+	}
361	+	}
362	+	}
363	+
364	+	/**
365	+	* Returns a TestRunner that doesn't bother with unnecessary
366	+	* fluff, like printing a "." for each test case.
367	+	*/
368	+	static junit.textui.TestRunner newPithyTestRunner() {
369	+	junit.textui.TestRunner runner = new junit.textui.TestRunner();
370	+	runner.setPrinter(new PithyResultPrinter(System.out));
371	+	return runner;
372	+	}
373	+
374	+	/**
375	+	* Runs all unit tests in the given test suite.
376	+	* Actual behavior influenced by jsr166.* system properties.
377	+	*/
378	+	static void main(Test suite, String[] args) {
379	+	if (useSecurityManager) {
380	+	System.err.println("Setting a permissive security manager");
381	+	Policy.setPolicy(permissivePolicy());
382	+	System.setSecurityManager(new SecurityManager());
383	+	}
384	+	for (int i = 0; i < suiteRuns; i++) {
385	+	TestResult result = newPithyTestRunner().doRun(suite);
386	+	if (!result.wasSuccessful())
387	+	System.exit(1);
388	+	System.gc();
389	+	System.runFinalization();
390	+	}
391	+	}
392	+
393	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
394	+	TestSuite suite = new TestSuite();
395	+	for (Object suiteOrClass : suiteOrClasses) {
396	+	if (suiteOrClass instanceof TestSuite)
397	+	suite.addTest((TestSuite) suiteOrClass);
398	+	else if (suiteOrClass instanceof Class)
399	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
400	+	else
401	+	throw new ClassCastException("not a test suite or class");
402	+	}
403	+	return suite;
404	+	}
405	+
406	+	public static void addNamedTestClasses(TestSuite suite,
407	+	String... testClassNames) {
408	+	for (String testClassName : testClassNames) {
409	+	try {
410	+	Class<?> testClass = Class.forName(testClassName);
411	+	Method m = testClass.getDeclaredMethod("suite",
412	+	new Class<?>[0]);
413	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
414	+	} catch (Exception e) {
415	+	throw new Error("Missing test class", e);
416	+	}
417	+	}
418	+	}
419	+
420	+	public static final double JAVA_CLASS_VERSION;
421	+	public static final String JAVA_SPECIFICATION_VERSION;
422	+	static {
423	+	try {
424	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
425	+	new java.security.PrivilegedAction<Double>() {
426	+	public Double run() {
427	+	return Double.valueOf(System.getProperty("java.class.version"));}});
428	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
429	+	new java.security.PrivilegedAction<String>() {
430	+	public String run() {
431	+	return System.getProperty("java.specification.version");}});
432	+	} catch (Throwable t) {
433	+	throw new Error(t);
434	+	}
435	+	}
436	+
437	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
438	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
439	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
440	+	public static boolean atLeastJava9() {
441	+	return JAVA_CLASS_VERSION >= 53.0
442	+	// As of 2015-09, java9 still uses 52.0 class file version
443	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
444	+	}
445	+	public static boolean atLeastJava10() {
446	+	return JAVA_CLASS_VERSION >= 54.0
447	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
448	+	}
449	+
450	+	/**
451	+	* Collects all JSR166 unit tests as one suite.
452	+	*/
453	+	public static Test suite() {
454	+	// Java7+ test classes
455	+	TestSuite suite = newTestSuite(
456	+	ForkJoinPoolTest.suite(),
457	+	ForkJoinTaskTest.suite(),
458	+	RecursiveActionTest.suite(),
459	+	RecursiveTaskTest.suite(),
460	+	LinkedTransferQueueTest.suite(),
461	+	PhaserTest.suite(),
462	+	ThreadLocalRandomTest.suite(),
463	+	AbstractExecutorServiceTest.suite(),
464	+	AbstractQueueTest.suite(),
465	+	AbstractQueuedSynchronizerTest.suite(),
466	+	AbstractQueuedLongSynchronizerTest.suite(),
467	+	ArrayBlockingQueueTest.suite(),
468	+	ArrayDequeTest.suite(),
469	+	ArrayListTest.suite(),
470	+	AtomicBooleanTest.suite(),
471	+	AtomicIntegerArrayTest.suite(),
472	+	AtomicIntegerFieldUpdaterTest.suite(),
473	+	AtomicIntegerTest.suite(),
474	+	AtomicLongArrayTest.suite(),
475	+	AtomicLongFieldUpdaterTest.suite(),
476	+	AtomicLongTest.suite(),
477	+	AtomicMarkableReferenceTest.suite(),
478	+	AtomicReferenceArrayTest.suite(),
479	+	AtomicReferenceFieldUpdaterTest.suite(),
480	+	AtomicReferenceTest.suite(),
481	+	AtomicStampedReferenceTest.suite(),
482	+	ConcurrentHashMapTest.suite(),
483	+	ConcurrentLinkedDequeTest.suite(),
484	+	ConcurrentLinkedQueueTest.suite(),
485	+	ConcurrentSkipListMapTest.suite(),
486	+	ConcurrentSkipListSubMapTest.suite(),
487	+	ConcurrentSkipListSetTest.suite(),
488	+	ConcurrentSkipListSubSetTest.suite(),
489	+	CopyOnWriteArrayListTest.suite(),
490	+	CopyOnWriteArraySetTest.suite(),
491	+	CountDownLatchTest.suite(),
492	+	CountedCompleterTest.suite(),
493	+	CyclicBarrierTest.suite(),
494	+	DelayQueueTest.suite(),
495	+	EntryTest.suite(),
496	+	ExchangerTest.suite(),
497	+	ExecutorsTest.suite(),
498	+	ExecutorCompletionServiceTest.suite(),
499	+	FutureTaskTest.suite(),
500	+	LinkedBlockingDequeTest.suite(),
501	+	LinkedBlockingQueueTest.suite(),
502	+	LinkedListTest.suite(),
503	+	LockSupportTest.suite(),
504	+	PriorityBlockingQueueTest.suite(),
505	+	PriorityQueueTest.suite(),
506	+	ReentrantLockTest.suite(),
507	+	ReentrantReadWriteLockTest.suite(),
508	+	ScheduledExecutorTest.suite(),
509	+	ScheduledExecutorSubclassTest.suite(),
510	+	SemaphoreTest.suite(),
511	+	SynchronousQueueTest.suite(),
512	+	SystemTest.suite(),
513	+	ThreadLocalTest.suite(),
514	+	ThreadPoolExecutorTest.suite(),
515	+	ThreadPoolExecutorSubclassTest.suite(),
516	+	ThreadTest.suite(),
517	+	TimeUnitTest.suite(),
518	+	TreeMapTest.suite(),
519	+	TreeSetTest.suite(),
520	+	TreeSubMapTest.suite(),
521	+	TreeSubSetTest.suite(),
522	+	VectorTest.suite());
523	+
524	+	// Java8+ test classes
525	+	if (atLeastJava8()) {
526	+	String[] java8TestClassNames = {
527	+	"ArrayDeque8Test",
528	+	"Atomic8Test",
529	+	"CompletableFutureTest",
530	+	"ConcurrentHashMap8Test",
531	+	"CountedCompleter8Test",
532	+	"DoubleAccumulatorTest",
533	+	"DoubleAdderTest",
534	+	"ForkJoinPool8Test",
535	+	"ForkJoinTask8Test",
536	+	"LinkedBlockingDeque8Test",
537	+	"LinkedBlockingQueue8Test",
538	+	"LongAccumulatorTest",
539	+	"LongAdderTest",
540	+	"SplittableRandomTest",
541	+	"StampedLockTest",
542	+	"SubmissionPublisherTest",
543	+	"ThreadLocalRandom8Test",
544	+	"TimeUnit8Test",
545	+	};
546	+	addNamedTestClasses(suite, java8TestClassNames);
547	+	}
548	+
549	+	// Java9+ test classes
550	+	if (atLeastJava9()) {
551	+	String[] java9TestClassNames = {
552	+	"AtomicBoolean9Test",
553	+	"AtomicInteger9Test",
554	+	"AtomicIntegerArray9Test",
555	+	"AtomicLong9Test",
556	+	"AtomicLongArray9Test",
557	+	"AtomicReference9Test",
558	+	"AtomicReferenceArray9Test",
559	+	"ExecutorCompletionService9Test",
560	+	};
561	+	addNamedTestClasses(suite, java9TestClassNames);
562	+	}
563	+
564	+	return suite;
565	+	}
566	+
567	+	/** Returns list of junit-style test method names in given class. */
568	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
569	+	Method[] methods = testClass.getDeclaredMethods();
570	+	ArrayList<String> names = new ArrayList<String>(methods.length);
571	+	for (Method method : methods) {
572	+	if (method.getName().startsWith("test")
573	+	&& Modifier.isPublic(method.getModifiers())
574	+	// method.getParameterCount() requires jdk8+
575	+	&& method.getParameterTypes().length == 0) {
576	+	names.add(method.getName());
577	+	}
578	+	}
579	+	return names;
580	+	}
581	+
582	+	/**
583	+	* Returns junit-style testSuite for the given test class, but
584	+	* parameterized by passing extra data to each test.
585	+	*/
586	+	public static <ExtraData> Test parameterizedTestSuite
587	+	(Class<? extends JSR166TestCase> testClass,
588	+	Class<ExtraData> dataClass,
589	+	ExtraData data) {
590	+	try {
591	+	TestSuite suite = new TestSuite();
592	+	Constructor c =
593	+	testClass.getDeclaredConstructor(dataClass, String.class);
594	+	for (String methodName : testMethodNames(testClass))
595	+	suite.addTest((Test) c.newInstance(data, methodName));
596	+	return suite;
597	+	} catch (Exception e) {
598	+	throw new Error(e);
599	+	}
600	+	}
601	+
602	+	/**
603	+	* Returns junit-style testSuite for the jdk8 extension of the
604	+	* given test class, but parameterized by passing extra data to
605	+	* each test.  Uses reflection to allow compilation in jdk7.
606	+	*/
607	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
608	+	(Class<? extends JSR166TestCase> testClass,
609	+	Class<ExtraData> dataClass,
610	+	ExtraData data) {
611	+	if (atLeastJava8()) {
612	+	String name = testClass.getName();
613	+	String name8 = name.replaceAll("Test$", "8Test");
614	+	if (name.equals(name8)) throw new Error(name);
615	+	try {
616	+	return (Test)
617	+	Class.forName(name8)
618	+	.getMethod("testSuite", new Class[] { dataClass })
619	+	.invoke(null, data);
620	+	} catch (Exception e) {
621	+	throw new Error(e);
622	+	}
623	+	} else {
624	+	return new TestSuite();
625	+	}
626	+	}
627	+
628	+	// Delays for timing-dependent tests, in milliseconds.
629
630		public static long SHORT_DELAY_MS;
631		public static long SMALL_DELAY_MS;
632		public static long MEDIUM_DELAY_MS;
633		public static long LONG_DELAY_MS;
634
61	–
635		/**
636	<	* Return the shortest timed delay. This could
637	<	* be reimplmented to use for example a Property.
638	<	*/
636	>	* Returns the shortest timed delay. This can be scaled up for
637	>	* slow machines using the jsr166.delay.factor system property,
638	>	* or via jtreg's -timeoutFactor: flag.
639	>	* http://openjdk.java.net/jtreg/command-help.html
640	>	*/
641		protected long getShortDelay() {
642	<	return 50;
642	>	return (long) (50 * delayFactor);
643		}
644
70	–
645		/**
646	<	* Set delays as multiples fo SHORT_DELAY.
646	>	* Sets delays as multiples of SHORT_DELAY.
647		*/
648	<	protected  void setDelays() {
648	>	protected void setDelays() {
649		SHORT_DELAY_MS = getShortDelay();
650	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
650	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
651		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
652	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
652	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
653		}
654
655		/**
656	<	* Flag set true if any threadAssert methods fail
656	>	* Returns a timeout in milliseconds to be used in tests that
657	>	* verify that operations block or time out.
658		*/
659	<	protected volatile boolean threadFailed;
659	>	long timeoutMillis() {
660	>	return SHORT_DELAY_MS / 4;
661	>	}
662
663		/**
664	<	* Initialize test to indicat that no thread assertions have failed
664	>	* Returns a new Date instance representing a time at least
665	>	* delayMillis milliseconds in the future.
666		*/
667	<	public void setUp() {
667	>	Date delayedDate(long delayMillis) {
668	>	// Add 1 because currentTimeMillis is known to round into the past.
669	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
670	>	}
671	>
672	>	/**
673	>	* The first exception encountered if any threadAssertXXX method fails.
674	>	*/
675	>	private final AtomicReference<Throwable> threadFailure
676	>	= new AtomicReference<Throwable>(null);
677	>
678	>	/**
679	>	* Records an exception so that it can be rethrown later in the test
680	>	* harness thread, triggering a test case failure.  Only the first
681	>	* failure is recorded; subsequent calls to this method from within
682	>	* the same test have no effect.
683	>	*/
684	>	public void threadRecordFailure(Throwable t) {
685	>	System.err.println(t);
686	>	dumpTestThreads();
687	>	threadFailure.compareAndSet(null, t);
688	>	}
689	>
690	>	public void setUp() {
691		setDelays();
692	<	threadFailed = false;
692	>	}
693	>
694	>	void tearDownFail(String format, Object... args) {
695	>	String msg = toString() + ": " + String.format(format, args);
696	>	System.err.println(msg);
697	>	dumpTestThreads();
698	>	throw new AssertionFailedError(msg);
699		}
700
701		/**
702	<	* Trigger test case failure if any thread assertions have failed
702	>	* Extra checks that get done for all test cases.
703	>	*
704	>	* Triggers test case failure if any thread assertions have failed,
705	>	* by rethrowing, in the test harness thread, any exception recorded
706	>	* earlier by threadRecordFailure.
707	>	*
708	>	* Triggers test case failure if interrupt status is set in the main thread.
709		*/
710	<	public void tearDown() {
711	<	assertFalse(threadFailed);
710	>	public void tearDown() throws Exception {
711	>	Throwable t = threadFailure.getAndSet(null);
712	>	if (t != null) {
713	>	if (t instanceof Error)
714	>	throw (Error) t;
715	>	else if (t instanceof RuntimeException)
716	>	throw (RuntimeException) t;
717	>	else if (t instanceof Exception)
718	>	throw (Exception) t;
719	>	else {
720	>	AssertionFailedError afe =
721	>	new AssertionFailedError(t.toString());
722	>	afe.initCause(t);
723	>	throw afe;
724	>	}
725	>	}
726	>
727	>	if (Thread.interrupted())
728	>	tearDownFail("interrupt status set in main thread");
729	>
730	>	checkForkJoinPoolThreadLeaks();
731		}
732
733	+	/**
734	+	* Finds missing PoolCleaners
735	+	*/
736	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
737	+	Thread[] survivors = new Thread[7];
738	+	int count = Thread.enumerate(survivors);
739	+	for (int i = 0; i < count; i++) {
740	+	Thread thread = survivors[i];
741	+	String name = thread.getName();
742	+	if (name.startsWith("ForkJoinPool-")) {
743	+	// give thread some time to terminate
744	+	thread.join(LONG_DELAY_MS);
745	+	if (thread.isAlive())
746	+	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
747	+	thread);
748	+	}
749	+	}
750	+
751	+	if (!ForkJoinPool.commonPool()
752	+	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
753	+	tearDownFail("ForkJoin common pool thread stuck");
754	+	}
755	+
756	+	/**
757	+	* Just like fail(reason), but additionally recording (using
758	+	* threadRecordFailure) any AssertionFailedError thrown, so that
759	+	* the current testcase will fail.
760	+	*/
761		public void threadFail(String reason) {
762	<	threadFailed = true;
763	<	fail(reason);
762	>	try {
763	>	fail(reason);
764	>	} catch (AssertionFailedError t) {
765	>	threadRecordFailure(t);
766	>	throw t;
767	>	}
768		}
769
770	+	/**
771	+	* Just like assertTrue(b), but additionally recording (using
772	+	* threadRecordFailure) any AssertionFailedError thrown, so that
773	+	* the current testcase will fail.
774	+	*/
775		public void threadAssertTrue(boolean b) {
776	<	if (!b) {
108	<	threadFailed = true;
776	>	try {
777		assertTrue(b);
778	+	} catch (AssertionFailedError t) {
779	+	threadRecordFailure(t);
780	+	throw t;
781		}
782		}
783	+
784	+	/**
785	+	* Just like assertFalse(b), but additionally recording (using
786	+	* threadRecordFailure) any AssertionFailedError thrown, so that
787	+	* the current testcase will fail.
788	+	*/
789		public void threadAssertFalse(boolean b) {
790	<	if (b) {
114	<	threadFailed = true;
790	>	try {
791		assertFalse(b);
792	+	} catch (AssertionFailedError t) {
793	+	threadRecordFailure(t);
794	+	throw t;
795		}
796		}
797	+
798	+	/**
799	+	* Just like assertNull(x), but additionally recording (using
800	+	* threadRecordFailure) any AssertionFailedError thrown, so that
801	+	* the current testcase will fail.
802	+	*/
803		public void threadAssertNull(Object x) {
804	<	if (x != null) {
120	<	threadFailed = true;
804	>	try {
805		assertNull(x);
806	+	} catch (AssertionFailedError t) {
807	+	threadRecordFailure(t);
808	+	throw t;
809		}
810		}
811	+
812	+	/**
813	+	* Just like assertEquals(x, y), but additionally recording (using
814	+	* threadRecordFailure) any AssertionFailedError thrown, so that
815	+	* the current testcase will fail.
816	+	*/
817		public void threadAssertEquals(long x, long y) {
818	<	if (x != y) {
126	<	threadFailed = true;
818	>	try {
819		assertEquals(x, y);
820	+	} catch (AssertionFailedError t) {
821	+	threadRecordFailure(t);
822	+	throw t;
823		}
824		}
825	+
826	+	/**
827	+	* Just like assertEquals(x, y), but additionally recording (using
828	+	* threadRecordFailure) any AssertionFailedError thrown, so that
829	+	* the current testcase will fail.
830	+	*/
831		public void threadAssertEquals(Object x, Object y) {
832	<	if (x != y && (x == null || !x.equals(y))) {
132	<	threadFailed = true;
832	>	try {
833		assertEquals(x, y);
834	+	} catch (AssertionFailedError fail) {
835	+	threadRecordFailure(fail);
836	+	throw fail;
837	+	} catch (Throwable fail) {
838	+	threadUnexpectedException(fail);
839	+	}
840	+	}
841	+
842	+	/**
843	+	* Just like assertSame(x, y), but additionally recording (using
844	+	* threadRecordFailure) any AssertionFailedError thrown, so that
845	+	* the current testcase will fail.
846	+	*/
847	+	public void threadAssertSame(Object x, Object y) {
848	+	try {
849	+	assertSame(x, y);
850	+	} catch (AssertionFailedError fail) {
851	+	threadRecordFailure(fail);
852	+	throw fail;
853	+	}
854	+	}
855	+
856	+	/**
857	+	* Calls threadFail with message "should throw exception".
858	+	*/
859	+	public void threadShouldThrow() {
860	+	threadFail("should throw exception");
861	+	}
862	+
863	+	/**
864	+	* Calls threadFail with message "should throw" + exceptionName.
865	+	*/
866	+	public void threadShouldThrow(String exceptionName) {
867	+	threadFail("should throw " + exceptionName);
868	+	}
869	+
870	+	/**
871	+	* Records the given exception using {@link #threadRecordFailure},
872	+	* then rethrows the exception, wrapping it in an
873	+	* AssertionFailedError if necessary.
874	+	*/
875	+	public void threadUnexpectedException(Throwable t) {
876	+	threadRecordFailure(t);
877	+	t.printStackTrace();
878	+	if (t instanceof RuntimeException)
879	+	throw (RuntimeException) t;
880	+	else if (t instanceof Error)
881	+	throw (Error) t;
882	+	else {
883	+	AssertionFailedError afe =
884	+	new AssertionFailedError("unexpected exception: " + t);
885	+	afe.initCause(t);
886	+	throw afe;
887	+	}
888	+	}
889	+
890	+	/**
891	+	* Delays, via Thread.sleep, for the given millisecond delay, but
892	+	* if the sleep is shorter than specified, may re-sleep or yield
893	+	* until time elapses.  Ensures that the given time, as measured
894	+	* by System.nanoTime(), has elapsed.
895	+	*/
896	+	static void delay(long millis) throws InterruptedException {
897	+	long nanos = millis * (1000 * 1000);
898	+	final long wakeupTime = System.nanoTime() + nanos;
899	+	do {
900	+	if (millis > 0L)
901	+	Thread.sleep(millis);
902	+	else // too short to sleep
903	+	Thread.yield();
904	+	nanos = wakeupTime - System.nanoTime();
905	+	millis = nanos / (1000 * 1000);
906	+	} while (nanos >= 0L);
907	+	}
908	+
909	+	/**
910	+	* Allows use of try-with-resources with per-test thread pools.
911	+	*/
912	+	class PoolCleaner implements AutoCloseable {
913	+	private final ExecutorService pool;
914	+	public PoolCleaner(ExecutorService pool) { this.pool = pool; }
915	+	public void close() { joinPool(pool); }
916	+	}
917	+
918	+	/**
919	+	* An extension of PoolCleaner that has an action to release the pool.
920	+	*/
921	+	class PoolCleanerWithReleaser extends PoolCleaner {
922	+	private final Runnable releaser;
923	+	public PoolCleanerWithReleaser(ExecutorService pool, Runnable releaser) {
924	+	super(pool);
925	+	this.releaser = releaser;
926	+	}
927	+	public void close() {
928	+	try {
929	+	releaser.run();
930	+	} finally {
931	+	super.close();
932	+	}
933		}
934		}
935
936	+	PoolCleaner cleaner(ExecutorService pool) {
937	+	return new PoolCleaner(pool);
938	+	}
939	+
940	+	PoolCleaner cleaner(ExecutorService pool, Runnable releaser) {
941	+	return new PoolCleanerWithReleaser(pool, releaser);
942	+	}
943	+
944	+	PoolCleaner cleaner(ExecutorService pool, CountDownLatch latch) {
945	+	return new PoolCleanerWithReleaser(pool, releaser(latch));
946	+	}
947	+
948	+	Runnable releaser(final CountDownLatch latch) {
949	+	return new Runnable() { public void run() {
950	+	do { latch.countDown(); }
951	+	while (latch.getCount() > 0);
952	+	}};
953	+	}
954	+
955	+	PoolCleaner cleaner(ExecutorService pool, AtomicBoolean flag) {
956	+	return new PoolCleanerWithReleaser(pool, releaser(flag));
957	+	}
958	+
959	+	Runnable releaser(final AtomicBoolean flag) {
960	+	return new Runnable() { public void run() { flag.set(true); }};
961	+	}
962	+
963		/**
964	<	* Wait out termination of a thread pool or fail doing so
964	>	* Waits out termination of a thread pool or fails doing so.
965		*/
966	<	public void joinPool(ExecutorService exec) {
966	>	void joinPool(ExecutorService pool) {
967		try {
968	<	exec.shutdown();
969	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
970	<	} catch(InterruptedException ie) {
971	<	fail("unexpected exception");
968	>	pool.shutdown();
969	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS)) {
970	>	try {
971	>	threadFail("ExecutorService " + pool +
972	>	" did not terminate in a timely manner");
973	>	} finally {
974	>	// last resort, for the benefit of subsequent tests
975	>	pool.shutdownNow();
976	>	pool.awaitTermination(MEDIUM_DELAY_MS, MILLISECONDS);
977	>	}
978	>	}
979	>	} catch (SecurityException ok) {
980	>	// Allowed in case test doesn't have privs
981	>	} catch (InterruptedException fail) {
982	>	threadFail("Unexpected InterruptedException");
983	>	}
984	>	}
985	>
986	>	/**
987	>	* Like Runnable, but with the freedom to throw anything.
988	>	* junit folks had the same idea:
989	>	* http://junit.org/junit5/docs/snapshot/api/org/junit/gen5/api/Executable.html
990	>	*/
991	>	interface Action { public void run() throws Throwable; }
992	>
993	>	/**
994	>	* Runs all the given actions in parallel, failing if any fail.
995	>	* Useful for running multiple variants of tests that are
996	>	* necessarily individually slow because they must block.
997	>	*/
998	>	void testInParallel(Action ... actions) {
999	>	ExecutorService pool = Executors.newCachedThreadPool();
1000	>	try (PoolCleaner cleaner = cleaner(pool)) {
1001	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
1002	>	for (final Action action : actions)
1003	>	futures.add(pool.submit(new CheckedRunnable() {
1004	>	public void realRun() throws Throwable { action.run();}}));
1005	>	for (Future<?> future : futures)
1006	>	try {
1007	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
1008	>	} catch (ExecutionException ex) {
1009	>	threadUnexpectedException(ex.getCause());
1010	>	} catch (Exception ex) {
1011	>	threadUnexpectedException(ex);
1012	>	}
1013		}
1014		}
1015
1016	+	/**
1017	+	* A debugging tool to print stack traces of most threads, as jstack does.
1018	+	* Uninteresting threads are filtered out.
1019	+	*/
1020	+	static void dumpTestThreads() {
1021	+	SecurityManager sm = System.getSecurityManager();
1022	+	if (sm != null) {
1023	+	try {
1024	+	System.setSecurityManager(null);
1025	+	} catch (SecurityException giveUp) {
1026	+	return;
1027	+	}
1028	+	}
1029	+
1030	+	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1031	+	System.err.println("------ stacktrace dump start ------");
1032	+	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1033	+	final String name = info.getThreadName();
1034	+	String lockName;
1035	+	if ("Signal Dispatcher".equals(name))
1036	+	continue;
1037	+	if ("Reference Handler".equals(name)
1038	+	&& (lockName = info.getLockName()) != null
1039	+	&& lockName.startsWith("java.lang.ref.Reference$Lock"))
1040	+	continue;
1041	+	if ("Finalizer".equals(name)
1042	+	&& (lockName = info.getLockName()) != null
1043	+	&& lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
1044	+	continue;
1045	+	if ("checkForWedgedTest".equals(name))
1046	+	continue;
1047	+	System.err.print(info);
1048	+	}
1049	+	System.err.println("------ stacktrace dump end ------");
1050
1051	+	if (sm != null) System.setSecurityManager(sm);
1052	+	}
1053	+
1054	+	/**
1055	+	* Checks that thread does not terminate within the default
1056	+	* millisecond delay of {@code timeoutMillis()}.
1057	+	*/
1058	+	void assertThreadStaysAlive(Thread thread) {
1059	+	assertThreadStaysAlive(thread, timeoutMillis());
1060	+	}
1061	+
1062	+	/**
1063	+	* Checks that thread does not terminate within the given millisecond delay.
1064	+	*/
1065	+	void assertThreadStaysAlive(Thread thread, long millis) {
1066	+	try {
1067	+	// No need to optimize the failing case via Thread.join.
1068	+	delay(millis);
1069	+	assertTrue(thread.isAlive());
1070	+	} catch (InterruptedException fail) {
1071	+	threadFail("Unexpected InterruptedException");
1072	+	}
1073	+	}
1074	+
1075	+	/**
1076	+	* Checks that the threads do not terminate within the default
1077	+	* millisecond delay of {@code timeoutMillis()}.
1078	+	*/
1079	+	void assertThreadsStayAlive(Thread... threads) {
1080	+	assertThreadsStayAlive(timeoutMillis(), threads);
1081	+	}
1082	+
1083	+	/**
1084	+	* Checks that the threads do not terminate within the given millisecond delay.
1085	+	*/
1086	+	void assertThreadsStayAlive(long millis, Thread... threads) {
1087	+	try {
1088	+	// No need to optimize the failing case via Thread.join.
1089	+	delay(millis);
1090	+	for (Thread thread : threads)
1091	+	assertTrue(thread.isAlive());
1092	+	} catch (InterruptedException fail) {
1093	+	threadFail("Unexpected InterruptedException");
1094	+	}
1095	+	}
1096	+
1097	+	/**
1098	+	* Checks that future.get times out, with the default timeout of
1099	+	* {@code timeoutMillis()}.
1100	+	*/
1101	+	void assertFutureTimesOut(Future future) {
1102	+	assertFutureTimesOut(future, timeoutMillis());
1103	+	}
1104	+
1105	+	/**
1106	+	* Checks that future.get times out, with the given millisecond timeout.
1107	+	*/
1108	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
1109	+	long startTime = System.nanoTime();
1110	+	try {
1111	+	future.get(timeoutMillis, MILLISECONDS);
1112	+	shouldThrow();
1113	+	} catch (TimeoutException success) {
1114	+	} catch (Exception fail) {
1115	+	threadUnexpectedException(fail);
1116	+	} finally { future.cancel(true); }
1117	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
1118	+	}
1119	+
1120	+	/**
1121	+	* Fails with message "should throw exception".
1122	+	*/
1123	+	public void shouldThrow() {
1124	+	fail("Should throw exception");
1125	+	}
1126	+
1127	+	/**
1128	+	* Fails with message "should throw " + exceptionName.
1129	+	*/
1130	+	public void shouldThrow(String exceptionName) {
1131	+	fail("Should throw " + exceptionName);
1132	+	}
1133
1134		/**
1135		* The number of elements to place in collections, arrays, etc.
#	Line 155 | Line 1138 | public class JSR166TestCase extends Test
1138
1139		// Some convenient Integer constants
1140
1141	<	public static final Integer zero = new Integer(0);
1142	<	public static final Integer one = new Integer(1);
1143	<	public static final Integer two = new Integer(2);
1144	<	public static final Integer three  = new Integer(3);
1141	>	public static final Integer zero  = new Integer(0);
1142	>	public static final Integer one   = new Integer(1);
1143	>	public static final Integer two   = new Integer(2);
1144	>	public static final Integer three = new Integer(3);
1145		public static final Integer four  = new Integer(4);
1146		public static final Integer five  = new Integer(5);
1147	<	public static final Integer six = new Integer(6);
1147	>	public static final Integer six   = new Integer(6);
1148		public static final Integer seven = new Integer(7);
1149		public static final Integer eight = new Integer(8);
1150	<	public static final Integer nine = new Integer(9);
1150	>	public static final Integer nine  = new Integer(9);
1151		public static final Integer m1  = new Integer(-1);
1152		public static final Integer m2  = new Integer(-2);
1153		public static final Integer m3  = new Integer(-3);
1154	<	public static final Integer m4 = new Integer(-4);
1155	<	public static final Integer m5 = new Integer(-5);
1154	>	public static final Integer m4  = new Integer(-4);
1155	>	public static final Integer m5  = new Integer(-5);
1156	>	public static final Integer m6  = new Integer(-6);
1157		public static final Integer m10 = new Integer(-10);
1158
1159	+	/**
1160	+	* Runs Runnable r with a security policy that permits precisely
1161	+	* the specified permissions.  If there is no current security
1162	+	* manager, the runnable is run twice, both with and without a
1163	+	* security manager.  We require that any security manager permit
1164	+	* getPolicy/setPolicy.
1165	+	*/
1166	+	public void runWithPermissions(Runnable r, Permission... permissions) {
1167	+	SecurityManager sm = System.getSecurityManager();
1168	+	if (sm == null) {
1169	+	r.run();
1170	+	}
1171	+	runWithSecurityManagerWithPermissions(r, permissions);
1172	+	}
1173
1174	<	// Some convenient Runnable classes
1174	>	/**
1175	>	* Runs Runnable r with a security policy that permits precisely
1176	>	* the specified permissions.  If there is no current security
1177	>	* manager, a temporary one is set for the duration of the
1178	>	* Runnable.  We require that any security manager permit
1179	>	* getPolicy/setPolicy.
1180	>	*/
1181	>	public void runWithSecurityManagerWithPermissions(Runnable r,
1182	>	Permission... permissions) {
1183	>	SecurityManager sm = System.getSecurityManager();
1184	>	if (sm == null) {
1185	>	Policy savedPolicy = Policy.getPolicy();
1186	>	try {
1187	>	Policy.setPolicy(permissivePolicy());
1188	>	System.setSecurityManager(new SecurityManager());
1189	>	runWithSecurityManagerWithPermissions(r, permissions);
1190	>	} finally {
1191	>	System.setSecurityManager(null);
1192	>	Policy.setPolicy(savedPolicy);
1193	>	}
1194	>	} else {
1195	>	Policy savedPolicy = Policy.getPolicy();
1196	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
1197	>	Policy.setPolicy(policy);
1198
1199	<	public static class NoOpRunnable implements Runnable {
1200	<	public void run() {}
1199	>	try {
1200	>	r.run();
1201	>	} finally {
1202	>	policy.addPermission(new SecurityPermission("setPolicy"));
1203	>	Policy.setPolicy(savedPolicy);
1204	>	}
1205	>	}
1206		}
1207
1208	<	public static class NoOpCallable implements Callable {
1209	<	public Object call() { return Boolean.TRUE; }
1208	>	/**
1209	>	* Runs a runnable without any permissions.
1210	>	*/
1211	>	public void runWithoutPermissions(Runnable r) {
1212	>	runWithPermissions(r);
1213		}
1214
1215	<	public class ShortRunnable implements Runnable {
1216	<	public void run() {
1217	<	try {
1218	<	Thread.sleep(SHORT_DELAY_MS);
1215	>	/**
1216	>	* A security policy where new permissions can be dynamically added
1217	>	* or all cleared.
1218	>	*/
1219	>	public static class AdjustablePolicy extends java.security.Policy {
1220	>	Permissions perms = new Permissions();
1221	>	AdjustablePolicy(Permission... permissions) {
1222	>	for (Permission permission : permissions)
1223	>	perms.add(permission);
1224	>	}
1225	>	void addPermission(Permission perm) { perms.add(perm); }
1226	>	void clearPermissions() { perms = new Permissions(); }
1227	>	public PermissionCollection getPermissions(CodeSource cs) {
1228	>	return perms;
1229	>	}
1230	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
1231	>	return perms;
1232	>	}
1233	>	public boolean implies(ProtectionDomain pd, Permission p) {
1234	>	return perms.implies(p);
1235	>	}
1236	>	public void refresh() {}
1237	>	public String toString() {
1238	>	List<Permission> ps = new ArrayList<Permission>();
1239	>	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1240	>	ps.add(e.nextElement());
1241	>	return "AdjustablePolicy with permissions " + ps;
1242	>	}
1243	>	}
1244	>
1245	>	/**
1246	>	* Returns a policy containing all the permissions we ever need.
1247	>	*/
1248	>	public static Policy permissivePolicy() {
1249	>	return new AdjustablePolicy
1250	>	// Permissions j.u.c. needs directly
1251	>	(new RuntimePermission("modifyThread"),
1252	>	new RuntimePermission("getClassLoader"),
1253	>	new RuntimePermission("setContextClassLoader"),
1254	>	// Permissions needed to change permissions!
1255	>	new SecurityPermission("getPolicy"),
1256	>	new SecurityPermission("setPolicy"),
1257	>	new RuntimePermission("setSecurityManager"),
1258	>	// Permissions needed by the junit test harness
1259	>	new RuntimePermission("accessDeclaredMembers"),
1260	>	new PropertyPermission("*", "read"),
1261	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
1262	>	}
1263	>
1264	>	/**
1265	>	* Sleeps until the given time has elapsed.
1266	>	* Throws AssertionFailedError if interrupted.
1267	>	*/
1268	>	static void sleep(long millis) {
1269	>	try {
1270	>	delay(millis);
1271	>	} catch (InterruptedException fail) {
1272	>	AssertionFailedError afe =
1273	>	new AssertionFailedError("Unexpected InterruptedException");
1274	>	afe.initCause(fail);
1275	>	throw afe;
1276	>	}
1277	>	}
1278	>
1279	>	/**
1280	>	* Spin-waits up to the specified number of milliseconds for the given
1281	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1282	>	*/
1283	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1284	>	long startTime = 0L;
1285	>	for (;;) {
1286	>	Thread.State s = thread.getState();
1287	>	if (s == Thread.State.BLOCKED ||
1288	>	s == Thread.State.WAITING ||
1289	>	s == Thread.State.TIMED_WAITING)
1290	>	return;
1291	>	else if (s == Thread.State.TERMINATED)
1292	>	fail("Unexpected thread termination");
1293	>	else if (startTime == 0L)
1294	>	startTime = System.nanoTime();
1295	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1296	>	threadAssertTrue(thread.isAlive());
1297	>	return;
1298		}
1299	<	catch(Exception e) {
1300	<	threadFail("unexpectedException");
1299	>	Thread.yield();
1300	>	}
1301	>	}
1302	>
1303	>	/**
1304	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1305	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1306	>	*/
1307	>	void waitForThreadToEnterWaitState(Thread thread) {
1308	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1309	>	}
1310	>
1311	>	/**
1312	>	* Returns the number of milliseconds since time given by
1313	>	* startNanoTime, which must have been previously returned from a
1314	>	* call to {@link System#nanoTime()}.
1315	>	*/
1316	>	static long millisElapsedSince(long startNanoTime) {
1317	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1318	>	}
1319	>
1320	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1321	>	//         long startTime = System.nanoTime();
1322	>	//         try {
1323	>	//             r.run();
1324	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1325	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1326	>	//             throw new AssertionFailedError("did not return promptly");
1327	>	//     }
1328	>
1329	>	//     void assertTerminatesPromptly(Runnable r) {
1330	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1331	>	//     }
1332	>
1333	>	/**
1334	>	* Checks that timed f.get() returns the expected value, and does not
1335	>	* wait for the timeout to elapse before returning.
1336	>	*/
1337	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1338	>	long startTime = System.nanoTime();
1339	>	try {
1340	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1341	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1342	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1343	>	throw new AssertionFailedError("timed get did not return promptly");
1344	>	}
1345	>
1346	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1347	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1348	>	}
1349	>
1350	>	/**
1351	>	* Returns a new started daemon Thread running the given runnable.
1352	>	*/
1353	>	Thread newStartedThread(Runnable runnable) {
1354	>	Thread t = new Thread(runnable);
1355	>	t.setDaemon(true);
1356	>	t.start();
1357	>	return t;
1358	>	}
1359	>
1360	>	/**
1361	>	* Waits for the specified time (in milliseconds) for the thread
1362	>	* to terminate (using {@link Thread#join(long)}), else interrupts
1363	>	* the thread (in the hope that it may terminate later) and fails.
1364	>	*/
1365	>	void awaitTermination(Thread t, long timeoutMillis) {
1366	>	try {
1367	>	t.join(timeoutMillis);
1368	>	} catch (InterruptedException fail) {
1369	>	threadUnexpectedException(fail);
1370	>	} finally {
1371	>	if (t.getState() != Thread.State.TERMINATED) {
1372	>	t.interrupt();
1373	>	threadFail("timed out waiting for thread to terminate");
1374		}
1375		}
1376		}
1377
1378	<	public class ShortInterruptedRunnable implements Runnable {
1379	<	public void run() {
1378	>	/**
1379	>	* Waits for LONG_DELAY_MS milliseconds for the thread to
1380	>	* terminate (using {@link Thread#join(long)}), else interrupts
1381	>	* the thread (in the hope that it may terminate later) and fails.
1382	>	*/
1383	>	void awaitTermination(Thread t) {
1384	>	awaitTermination(t, LONG_DELAY_MS);
1385	>	}
1386	>
1387	>	// Some convenient Runnable classes
1388	>
1389	>	public abstract class CheckedRunnable implements Runnable {
1390	>	protected abstract void realRun() throws Throwable;
1391	>
1392	>	public final void run() {
1393		try {
1394	<	Thread.sleep(SHORT_DELAY_MS);
1395	<	threadFail("should throw IE");
1394	>	realRun();
1395	>	} catch (Throwable fail) {
1396	>	threadUnexpectedException(fail);
1397		}
1398	<	catch(InterruptedException success) {
1398	>	}
1399	>	}
1400	>
1401	>	public abstract class RunnableShouldThrow implements Runnable {
1402	>	protected abstract void realRun() throws Throwable;
1403	>
1404	>	final Class<?> exceptionClass;
1405	>
1406	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
1407	>	this.exceptionClass = exceptionClass;
1408	>	}
1409	>
1410	>	public final void run() {
1411	>	try {
1412	>	realRun();
1413	>	threadShouldThrow(exceptionClass.getSimpleName());
1414	>	} catch (Throwable t) {
1415	>	if (! exceptionClass.isInstance(t))
1416	>	threadUnexpectedException(t);
1417		}
1418		}
1419		}
1420
1421	<	public class SmallRunnable implements Runnable {
1422	<	public void run() {
1421	>	public abstract class ThreadShouldThrow extends Thread {
1422	>	protected abstract void realRun() throws Throwable;
1423	>
1424	>	final Class<?> exceptionClass;
1425	>
1426	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
1427	>	this.exceptionClass = exceptionClass;
1428	>	}
1429	>
1430	>	public final void run() {
1431		try {
1432	<	Thread.sleep(SMALL_DELAY_MS);
1432	>	realRun();
1433	>	threadShouldThrow(exceptionClass.getSimpleName());
1434	>	} catch (Throwable t) {
1435	>	if (! exceptionClass.isInstance(t))
1436	>	threadUnexpectedException(t);
1437		}
1438	<	catch(Exception e) {
1439	<	threadFail("unexpectedException");
1438	>	}
1439	>	}
1440	>
1441	>	public abstract class CheckedInterruptedRunnable implements Runnable {
1442	>	protected abstract void realRun() throws Throwable;
1443	>
1444	>	public final void run() {
1445	>	try {
1446	>	realRun();
1447	>	threadShouldThrow("InterruptedException");
1448	>	} catch (InterruptedException success) {
1449	>	threadAssertFalse(Thread.interrupted());
1450	>	} catch (Throwable fail) {
1451	>	threadUnexpectedException(fail);
1452		}
1453		}
1454		}
1455
1456	<	public class SmallCallable implements Callable {
1457	<	public Object call() {
1456	>	public abstract class CheckedCallable<T> implements Callable<T> {
1457	>	protected abstract T realCall() throws Throwable;
1458	>
1459	>	public final T call() {
1460		try {
1461	<	Thread.sleep(SMALL_DELAY_MS);
1461	>	return realCall();
1462	>	} catch (Throwable fail) {
1463	>	threadUnexpectedException(fail);
1464	>	return null;
1465		}
1466	<	catch(Exception e) {
1467	<	threadFail("unexpectedException");
1466	>	}
1467	>	}
1468	>
1469	>	public abstract class CheckedInterruptedCallable<T>
1470	>	implements Callable<T> {
1471	>	protected abstract T realCall() throws Throwable;
1472	>
1473	>	public final T call() {
1474	>	try {
1475	>	T result = realCall();
1476	>	threadShouldThrow("InterruptedException");
1477	>	return result;
1478	>	} catch (InterruptedException success) {
1479	>	threadAssertFalse(Thread.interrupted());
1480	>	} catch (Throwable fail) {
1481	>	threadUnexpectedException(fail);
1482		}
1483	+	return null;
1484	+	}
1485	+	}
1486	+
1487	+	public static class NoOpRunnable implements Runnable {
1488	+	public void run() {}
1489	+	}
1490	+
1491	+	public static class NoOpCallable implements Callable {
1492	+	public Object call() { return Boolean.TRUE; }
1493	+	}
1494	+
1495	+	public static final String TEST_STRING = "a test string";
1496	+
1497	+	public static class StringTask implements Callable<String> {
1498	+	final String value;
1499	+	public StringTask() { this(TEST_STRING); }
1500	+	public StringTask(String value) { this.value = value; }
1501	+	public String call() { return value; }
1502	+	}
1503	+
1504	+	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1505	+	return new CheckedCallable<String>() {
1506	+	protected String realCall() {
1507	+	try {
1508	+	latch.await();
1509	+	} catch (InterruptedException quittingTime) {}
1510	+	return TEST_STRING;
1511	+	}};
1512	+	}
1513	+
1514	+	public Runnable countDowner(final CountDownLatch latch) {
1515	+	return new CheckedRunnable() {
1516	+	public void realRun() throws InterruptedException {
1517	+	latch.countDown();
1518	+	}};
1519	+	}
1520	+
1521	+	class LatchAwaiter extends CheckedRunnable {
1522	+	static final int NEW = 0;
1523	+	static final int RUNNING = 1;
1524	+	static final int DONE = 2;
1525	+	final CountDownLatch latch;
1526	+	int state = NEW;
1527	+	LatchAwaiter(CountDownLatch latch) { this.latch = latch; }
1528	+	public void realRun() throws InterruptedException {
1529	+	state = 1;
1530	+	await(latch);
1531	+	state = 2;
1532	+	}
1533	+	}
1534	+
1535	+	public LatchAwaiter awaiter(CountDownLatch latch) {
1536	+	return new LatchAwaiter(latch);
1537	+	}
1538	+
1539	+	public void await(CountDownLatch latch, long timeoutMillis) {
1540	+	try {
1541	+	if (!latch.await(timeoutMillis, MILLISECONDS))
1542	+	fail("timed out waiting for CountDownLatch for "
1543	+	+ (timeoutMillis/1000) + " sec");
1544	+	} catch (Throwable fail) {
1545	+	threadUnexpectedException(fail);
1546	+	}
1547	+	}
1548	+
1549	+	public void await(CountDownLatch latch) {
1550	+	await(latch, LONG_DELAY_MS);
1551	+	}
1552	+
1553	+	public void await(Semaphore semaphore) {
1554	+	try {
1555	+	if (!semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS))
1556	+	fail("timed out waiting for Semaphore for "
1557	+	+ (LONG_DELAY_MS/1000) + " sec");
1558	+	} catch (Throwable fail) {
1559	+	threadUnexpectedException(fail);
1560	+	}
1561	+	}
1562	+
1563	+	//     /**
1564	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1565	+	//      */
1566	+	//     public void await(AtomicBoolean flag) {
1567	+	//         await(flag, LONG_DELAY_MS);
1568	+	//     }
1569	+
1570	+	//     /**
1571	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1572	+	//      */
1573	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1574	+	//         long startTime = System.nanoTime();
1575	+	//         while (!flag.get()) {
1576	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1577	+	//                 throw new AssertionFailedError("timed out");
1578	+	//             Thread.yield();
1579	+	//         }
1580	+	//     }
1581	+
1582	+	public static class NPETask implements Callable<String> {
1583	+	public String call() { throw new NullPointerException(); }
1584	+	}
1585	+
1586	+	public static class CallableOne implements Callable<Integer> {
1587	+	public Integer call() { return one; }
1588	+	}
1589	+
1590	+	public class ShortRunnable extends CheckedRunnable {
1591	+	protected void realRun() throws Throwable {
1592	+	delay(SHORT_DELAY_MS);
1593	+	}
1594	+	}
1595	+
1596	+	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1597	+	protected void realRun() throws InterruptedException {
1598	+	delay(SHORT_DELAY_MS);
1599	+	}
1600	+	}
1601	+
1602	+	public class SmallRunnable extends CheckedRunnable {
1603	+	protected void realRun() throws Throwable {
1604	+	delay(SMALL_DELAY_MS);
1605	+	}
1606	+	}
1607	+
1608	+	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1609	+	protected void realRun() {
1610	+	try {
1611	+	delay(SMALL_DELAY_MS);
1612	+	} catch (InterruptedException ok) {}
1613	+	}
1614	+	}
1615	+
1616	+	public class SmallCallable extends CheckedCallable {
1617	+	protected Object realCall() throws InterruptedException {
1618	+	delay(SMALL_DELAY_MS);
1619		return Boolean.TRUE;
1620		}
1621		}
1622
1623	<	public class SmallInterruptedRunnable implements Runnable {
1623	>	public class MediumRunnable extends CheckedRunnable {
1624	>	protected void realRun() throws Throwable {
1625	>	delay(MEDIUM_DELAY_MS);
1626	>	}
1627	>	}
1628	>
1629	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1630	>	protected void realRun() throws InterruptedException {
1631	>	delay(MEDIUM_DELAY_MS);
1632	>	}
1633	>	}
1634	>
1635	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1636	>	return new CheckedRunnable() {
1637	>	protected void realRun() {
1638	>	try {
1639	>	delay(timeoutMillis);
1640	>	} catch (InterruptedException ok) {}
1641	>	}};
1642	>	}
1643	>
1644	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1645	>	protected void realRun() {
1646	>	try {
1647	>	delay(MEDIUM_DELAY_MS);
1648	>	} catch (InterruptedException ok) {}
1649	>	}
1650	>	}
1651	>
1652	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1653	>	protected void realRun() {
1654	>	try {
1655	>	delay(LONG_DELAY_MS);
1656	>	} catch (InterruptedException ok) {}
1657	>	}
1658	>	}
1659	>
1660	>	/**
1661	>	* For use as ThreadFactory in constructors
1662	>	*/
1663	>	public static class SimpleThreadFactory implements ThreadFactory {
1664	>	public Thread newThread(Runnable r) {
1665	>	return new Thread(r);
1666	>	}
1667	>	}
1668	>
1669	>	public interface TrackedRunnable extends Runnable {
1670	>	boolean isDone();
1671	>	}
1672	>
1673	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1674	>	return new TrackedRunnable() {
1675	>	private volatile boolean done = false;
1676	>	public boolean isDone() { return done; }
1677	>	public void run() {
1678	>	try {
1679	>	delay(timeoutMillis);
1680	>	done = true;
1681	>	} catch (InterruptedException ok) {}
1682	>	}
1683	>	};
1684	>	}
1685	>
1686	>	public static class TrackedShortRunnable implements Runnable {
1687	>	public volatile boolean done = false;
1688		public void run() {
1689		try {
1690	<	Thread.sleep(SMALL_DELAY_MS);
1691	<	threadFail("should throw IE");
1692	<	}
237	<	catch(InterruptedException success) {
238	<	}
1690	>	delay(SHORT_DELAY_MS);
1691	>	done = true;
1692	>	} catch (InterruptedException ok) {}
1693		}
1694		}
1695
1696	+	public static class TrackedSmallRunnable implements Runnable {
1697	+	public volatile boolean done = false;
1698	+	public void run() {
1699	+	try {
1700	+	delay(SMALL_DELAY_MS);
1701	+	done = true;
1702	+	} catch (InterruptedException ok) {}
1703	+	}
1704	+	}
1705
1706	<	public class MediumRunnable implements Runnable {
1706	>	public static class TrackedMediumRunnable implements Runnable {
1707	>	public volatile boolean done = false;
1708		public void run() {
1709		try {
1710	<	Thread.sleep(MEDIUM_DELAY_MS);
1711	<	}
1712	<	catch(Exception e) {
249	<	threadFail("unexpectedException");
250	<	}
1710	>	delay(MEDIUM_DELAY_MS);
1711	>	done = true;
1712	>	} catch (InterruptedException ok) {}
1713		}
1714		}
1715
1716	<	public class MediumInterruptedRunnable implements Runnable {
1716	>	public static class TrackedLongRunnable implements Runnable {
1717	>	public volatile boolean done = false;
1718		public void run() {
1719		try {
1720	<	Thread.sleep(MEDIUM_DELAY_MS);
1721	<	threadFail("should throw IE");
1720	>	delay(LONG_DELAY_MS);
1721	>	done = true;
1722	>	} catch (InterruptedException ok) {}
1723	>	}
1724	>	}
1725	>
1726	>	public static class TrackedNoOpRunnable implements Runnable {
1727	>	public volatile boolean done = false;
1728	>	public void run() {
1729	>	done = true;
1730	>	}
1731	>	}
1732	>
1733	>	public static class TrackedCallable implements Callable {
1734	>	public volatile boolean done = false;
1735	>	public Object call() {
1736	>	try {
1737	>	delay(SMALL_DELAY_MS);
1738	>	done = true;
1739	>	} catch (InterruptedException ok) {}
1740	>	return Boolean.TRUE;
1741	>	}
1742	>	}
1743	>
1744	>	/**
1745	>	* Analog of CheckedRunnable for RecursiveAction
1746	>	*/
1747	>	public abstract class CheckedRecursiveAction extends RecursiveAction {
1748	>	protected abstract void realCompute() throws Throwable;
1749	>
1750	>	@Override protected final void compute() {
1751	>	try {
1752	>	realCompute();
1753	>	} catch (Throwable fail) {
1754	>	threadUnexpectedException(fail);
1755		}
1756	<	catch(InterruptedException success) {
1756	>	}
1757	>	}
1758	>
1759	>	/**
1760	>	* Analog of CheckedCallable for RecursiveTask
1761	>	*/
1762	>	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1763	>	protected abstract T realCompute() throws Throwable;
1764	>
1765	>	@Override protected final T compute() {
1766	>	try {
1767	>	return realCompute();
1768	>	} catch (Throwable fail) {
1769	>	threadUnexpectedException(fail);
1770	>	return null;
1771		}
1772		}
1773		}
1774
1775	<	public class MediumPossiblyInterruptedRunnable implements Runnable {
1776	<	public void run() {
1775	>	/**
1776	>	* For use as RejectedExecutionHandler in constructors
1777	>	*/
1778	>	public static class NoOpREHandler implements RejectedExecutionHandler {
1779	>	public void rejectedExecution(Runnable r,
1780	>	ThreadPoolExecutor executor) {}
1781	>	}
1782	>
1783	>	/**
1784	>	* A CyclicBarrier that uses timed await and fails with
1785	>	* AssertionFailedErrors instead of throwing checked exceptions.
1786	>	*/
1787	>	public static class CheckedBarrier extends CyclicBarrier {
1788	>	public CheckedBarrier(int parties) { super(parties); }
1789	>
1790	>	public int await() {
1791		try {
1792	<	Thread.sleep(MEDIUM_DELAY_MS);
1792	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1793	>	} catch (TimeoutException timedOut) {
1794	>	throw new AssertionFailedError("timed out");
1795	>	} catch (Exception fail) {
1796	>	AssertionFailedError afe =
1797	>	new AssertionFailedError("Unexpected exception: " + fail);
1798	>	afe.initCause(fail);
1799	>	throw afe;
1800		}
1801	<	catch(InterruptedException success) {
1801	>	}
1802	>	}
1803	>
1804	>	void checkEmpty(BlockingQueue q) {
1805	>	try {
1806	>	assertTrue(q.isEmpty());
1807	>	assertEquals(0, q.size());
1808	>	assertNull(q.peek());
1809	>	assertNull(q.poll());
1810	>	assertNull(q.poll(0, MILLISECONDS));
1811	>	assertEquals(q.toString(), "[]");
1812	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1813	>	assertFalse(q.iterator().hasNext());
1814	>	try {
1815	>	q.element();
1816	>	shouldThrow();
1817	>	} catch (NoSuchElementException success) {}
1818	>	try {
1819	>	q.iterator().next();
1820	>	shouldThrow();
1821	>	} catch (NoSuchElementException success) {}
1822	>	try {
1823	>	q.remove();
1824	>	shouldThrow();
1825	>	} catch (NoSuchElementException success) {}
1826	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1827	>	}
1828	>
1829	>	void assertSerialEquals(Object x, Object y) {
1830	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1831	>	}
1832	>
1833	>	void assertNotSerialEquals(Object x, Object y) {
1834	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1835	>	}
1836	>
1837	>	byte[] serialBytes(Object o) {
1838	>	try {
1839	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1840	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1841	>	oos.writeObject(o);
1842	>	oos.flush();
1843	>	oos.close();
1844	>	return bos.toByteArray();
1845	>	} catch (Throwable fail) {
1846	>	threadUnexpectedException(fail);
1847	>	return new byte[0];
1848	>	}
1849	>	}
1850	>
1851	>	void assertImmutable(final Object o) {
1852	>	if (o instanceof Collection) {
1853	>	assertThrows(
1854	>	UnsupportedOperationException.class,
1855	>	new Runnable() { public void run() {
1856	>	((Collection) o).add(null);}});
1857	>	}
1858	>	}
1859	>
1860	>	@SuppressWarnings("unchecked")
1861	>	<T> T serialClone(T o) {
1862	>	try {
1863	>	ObjectInputStream ois = new ObjectInputStream
1864	>	(new ByteArrayInputStream(serialBytes(o)));
1865	>	T clone = (T) ois.readObject();
1866	>	if (o == clone) assertImmutable(o);
1867	>	assertSame(o.getClass(), clone.getClass());
1868	>	return clone;
1869	>	} catch (Throwable fail) {
1870	>	threadUnexpectedException(fail);
1871	>	return null;
1872	>	}
1873	>	}
1874	>
1875	>	/**
1876	>	* A version of serialClone that leaves error handling (for
1877	>	* e.g. NotSerializableException) up to the caller.
1878	>	*/
1879	>	@SuppressWarnings("unchecked")
1880	>	<T> T serialClonePossiblyFailing(T o)
1881	>	throws ReflectiveOperationException, java.io.IOException {
1882	>	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1883	>	ObjectOutputStream oos = new ObjectOutputStream(bos);
1884	>	oos.writeObject(o);
1885	>	oos.flush();
1886	>	oos.close();
1887	>	ObjectInputStream ois = new ObjectInputStream
1888	>	(new ByteArrayInputStream(bos.toByteArray()));
1889	>	T clone = (T) ois.readObject();
1890	>	if (o == clone) assertImmutable(o);
1891	>	assertSame(o.getClass(), clone.getClass());
1892	>	return clone;
1893	>	}
1894	>
1895	>	/**
1896	>	* If o implements Cloneable and has a public clone method,
1897	>	* returns a clone of o, else null.
1898	>	*/
1899	>	@SuppressWarnings("unchecked")
1900	>	<T> T cloneableClone(T o) {
1901	>	if (!(o instanceof Cloneable)) return null;
1902	>	final T clone;
1903	>	try {
1904	>	clone = (T) o.getClass().getMethod("clone").invoke(o);
1905	>	} catch (NoSuchMethodException ok) {
1906	>	return null;
1907	>	} catch (ReflectiveOperationException unexpected) {
1908	>	throw new Error(unexpected);
1909	>	}
1910	>	assertNotSame(o, clone); // not 100% guaranteed by spec
1911	>	assertSame(o.getClass(), clone.getClass());
1912	>	return clone;
1913	>	}
1914	>
1915	>	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1916	>	Runnable... throwingActions) {
1917	>	for (Runnable throwingAction : throwingActions) {
1918	>	boolean threw = false;
1919	>	try { throwingAction.run(); }
1920	>	catch (Throwable t) {
1921	>	threw = true;
1922	>	if (!expectedExceptionClass.isInstance(t)) {
1923	>	AssertionFailedError afe =
1924	>	new AssertionFailedError
1925	>	("Expected " + expectedExceptionClass.getName() +
1926	>	", got " + t.getClass().getName());
1927	>	afe.initCause(t);
1928	>	threadUnexpectedException(afe);
1929	>	}
1930		}
1931	+	if (!threw)
1932	+	shouldThrow(expectedExceptionClass.getName());
1933		}
1934		}
1935	<
1935	>
1936	>	public void assertIteratorExhausted(Iterator<?> it) {
1937	>	try {
1938	>	it.next();
1939	>	shouldThrow();
1940	>	} catch (NoSuchElementException success) {}
1941	>	assertFalse(it.hasNext());
1942	>	}
1943	>
1944	>	public <T> Callable<T> callableThrowing(final Exception ex) {
1945	>	return new Callable<T>() { public T call() throws Exception { throw ex; }};
1946	>	}
1947	>
1948	>	public Runnable runnableThrowing(final RuntimeException ex) {
1949	>	return new Runnable() { public void run() { throw ex; }};
1950	>	}
1951	>
1952	>	/** A reusable thread pool to be shared by tests. */
1953	>	static final ExecutorService cachedThreadPool =
1954	>	new ThreadPoolExecutor(0, Integer.MAX_VALUE,
1955	>	1000L, MILLISECONDS,
1956	>	new SynchronousQueue<Runnable>());
1957	>
1958	>	static <T> void shuffle(T[] array) {
1959	>	Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
1960	>	}
1961		}

Diff Legend

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