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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.70 by jsr166, Sun Nov 21 19:04:45 2010 UTC vs.
Revision 1.143 by jsr166, Sun Sep 13 16:28:14 2015 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
8
9	–	import junit.framework.*;
10	–	import java.util.PropertyPermission;
11	–	import java.util.concurrent.*;
12	–	import java.util.concurrent.atomic.AtomicReference;
9		import static java.util.concurrent.TimeUnit.MILLISECONDS;
10		import static java.util.concurrent.TimeUnit.NANOSECONDS;
11	+
12	+	import java.io.ByteArrayInputStream;
13	+	import java.io.ByteArrayOutputStream;
14	+	import java.io.ObjectInputStream;
15	+	import java.io.ObjectOutputStream;
16	+	import java.lang.management.ManagementFactory;
17	+	import java.lang.management.ThreadInfo;
18	+	import java.lang.reflect.Constructor;
19	+	import java.lang.reflect.Method;
20	+	import java.lang.reflect.Modifier;
21		import java.security.CodeSource;
22		import java.security.Permission;
23		import java.security.PermissionCollection;
#	Line 19 | Line 25 | import java.security.Permissions;
25		import java.security.Policy;
26		import java.security.ProtectionDomain;
27		import java.security.SecurityPermission;
28	+	import java.util.ArrayList;
29	+	import java.util.Arrays;
30	+	import java.util.Date;
31	+	import java.util.Enumeration;
32	+	import java.util.Iterator;
33	+	import java.util.List;
34	+	import java.util.NoSuchElementException;
35	+	import java.util.PropertyPermission;
36	+	import java.util.concurrent.BlockingQueue;
37	+	import java.util.concurrent.Callable;
38	+	import java.util.concurrent.CountDownLatch;
39	+	import java.util.concurrent.CyclicBarrier;
40	+	import java.util.concurrent.ExecutionException;
41	+	import java.util.concurrent.Executors;
42	+	import java.util.concurrent.ExecutorService;
43	+	import java.util.concurrent.Future;
44	+	import java.util.concurrent.RecursiveAction;
45	+	import java.util.concurrent.RecursiveTask;
46	+	import java.util.concurrent.RejectedExecutionHandler;
47	+	import java.util.concurrent.Semaphore;
48	+	import java.util.concurrent.ThreadFactory;
49	+	import java.util.concurrent.ThreadPoolExecutor;
50	+	import java.util.concurrent.TimeoutException;
51	+	import java.util.concurrent.atomic.AtomicReference;
52	+	import java.util.regex.Pattern;
53	+
54	+	import junit.framework.AssertionFailedError;
55	+	import junit.framework.Test;
56	+	import junit.framework.TestCase;
57	+	import junit.framework.TestResult;
58	+	import junit.framework.TestSuite;
59
60		/**
61		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 30 | Line 67 | import java.security.SecurityPermission;
67		*
68		* <ol>
69		*
70	<	* <li> All assertions in code running in generated threads must use
70	>	* <li>All assertions in code running in generated threads must use
71		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
72		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
73		* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
74		* particularly recommended) for other code to use these forms too.
75		* Only the most typically used JUnit assertion methods are defined
76	<	* this way, but enough to live with.</li>
76	>	* this way, but enough to live with.
77		*
78	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
78	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
79		* to invoke {@code super.setUp} and {@code super.tearDown} within
80		* them. These methods are used to clear and check for thread
81	<	* assertion failures.</li>
81	>	* assertion failures.
82		*
83		* <li>All delays and timeouts must use one of the constants {@code
84		* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
#	Line 52 | Line 89 | import java.security.SecurityPermission;
89		* is always discriminable as larger than SHORT and smaller than
90		* MEDIUM.  And so on. These constants are set to conservative values,
91		* but even so, if there is ever any doubt, they can all be increased
92	<	* in one spot to rerun tests on slower platforms.</li>
92	>	* in one spot to rerun tests on slower platforms.
93		*
94	<	* <li> All threads generated must be joined inside each test case
94	>	* <li>All threads generated must be joined inside each test case
95		* method (or {@code fail} to do so) before returning from the
96		* method. The {@code joinPool} method can be used to do this when
97	<	* using Executors.</li>
97	>	* using Executors.
98		*
99		* </ol>
100		*
101	<	* <p> <b>Other notes</b>
101	>	* <p><b>Other notes</b>
102		* <ul>
103		*
104	<	* <li> Usually, there is one testcase method per JSR166 method
104	>	* <li>Usually, there is one testcase method per JSR166 method
105		* covering "normal" operation, and then as many exception-testing
106		* methods as there are exceptions the method can throw. Sometimes
107		* there are multiple tests per JSR166 method when the different
108		* "normal" behaviors differ significantly. And sometimes testcases
109		* cover multiple methods when they cannot be tested in
110	<	* isolation.</li>
110	>	* isolation.
111		*
112	<	* <li> The documentation style for testcases is to provide as javadoc
112	>	* <li>The documentation style for testcases is to provide as javadoc
113		* a simple sentence or two describing the property that the testcase
114		* method purports to test. The javadocs do not say anything about how
115	<	* the property is tested. To find out, read the code.</li>
115	>	* the property is tested. To find out, read the code.
116		*
117	<	* <li> These tests are "conformance tests", and do not attempt to
117	>	* <li>These tests are "conformance tests", and do not attempt to
118		* test throughput, latency, scalability or other performance factors
119		* (see the separate "jtreg" tests for a set intended to check these
120		* for the most central aspects of functionality.) So, most tests use
121		* the smallest sensible numbers of threads, collection sizes, etc
122	<	* needed to check basic conformance.</li>
122	>	* needed to check basic conformance.
123		*
124		* <li>The test classes currently do not declare inclusion in
125		* any particular package to simplify things for people integrating
126	<	* them in TCK test suites.</li>
126	>	* them in TCK test suites.
127		*
128	<	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
129	<	* runs all JSR166 unit tests.</li>
128	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
129	>	* runs all JSR166 unit tests.
130		*
131		* </ul>
132		*/
#	Line 101 | Line 138 | public class JSR166TestCase extends Test
138		Boolean.getBoolean("jsr166.expensiveTests");
139
140		/**
141	+	* If true, also run tests that are not part of the official tck
142	+	* because they test unspecified implementation details.
143	+	*/
144	+	protected static final boolean testImplementationDetails =
145	+	Boolean.getBoolean("jsr166.testImplementationDetails");
146	+
147	+	/**
148		* If true, report on stdout all "slow" tests, that is, ones that
149		* take more than profileThreshold milliseconds to execute.
150		*/
#	Line 114 | Line 158 | public class JSR166TestCase extends Test
158		private static final long profileThreshold =
159		Long.getLong("jsr166.profileThreshold", 100);
160
161	+	/**
162	+	* The number of repetitions per test (for tickling rare bugs).
163	+	*/
164	+	private static final int runsPerTest =
165	+	Integer.getInteger("jsr166.runsPerTest", 1);
166	+
167	+	/**
168	+	* The number of repetitions of the test suite (for finding leaks?).
169	+	*/
170	+	private static final int suiteRuns =
171	+	Integer.getInteger("jsr166.suiteRuns", 1);
172	+
173	+	public JSR166TestCase() { super(); }
174	+	public JSR166TestCase(String name) { super(name); }
175	+
176	+	/**
177	+	* A filter for tests to run, matching strings of the form
178	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
179	+	* Usefully combined with jsr166.runsPerTest.
180	+	*/
181	+	private static final Pattern methodFilter = methodFilter();
182	+
183	+	private static Pattern methodFilter() {
184	+	String regex = System.getProperty("jsr166.methodFilter");
185	+	return (regex == null) ? null : Pattern.compile(regex);
186	+	}
187	+
188		protected void runTest() throws Throwable {
189	<	if (profileTests)
190	<	runTestProfiled();
191	<	else
192	<	super.runTest();
189	>	if (methodFilter == null
190	>	|| methodFilter.matcher(toString()).find()) {
191	>	for (int i = 0; i < runsPerTest; i++) {
192	>	if (profileTests)
193	>	runTestProfiled();
194	>	else
195	>	super.runTest();
196	>	}
197	>	}
198		}
199
200		protected void runTestProfiled() throws Throwable {
201	+	// Warmup run, notably to trigger all needed classloading.
202	+	super.runTest();
203		long t0 = System.nanoTime();
204		try {
205		super.runTest();
206		} finally {
207	<	long elapsedMillis =
130	<	(System.nanoTime() - t0) / (1000L * 1000L);
207	>	long elapsedMillis = millisElapsedSince(t0);
208		if (elapsedMillis >= profileThreshold)
209		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
210		}
211		}
212
213		/**
214	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
214	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
215		*/
216		public static void main(String[] args) {
217	+	main(suite(), args);
218	+	}
219	+
220	+	/**
221	+	* Runs all unit tests in the given test suite.
222	+	* Actual behavior influenced by jsr166.* system properties.
223	+	*/
224	+	static void main(Test suite, String[] args) {
225		if (useSecurityManager) {
226		System.err.println("Setting a permissive security manager");
227		Policy.setPolicy(permissivePolicy());
228		System.setSecurityManager(new SecurityManager());
229		}
230	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
231	<
232	<	Test s = suite();
233	<	for (int i = 0; i < iters; ++i) {
149	<	junit.textui.TestRunner.run(s);
230	>	for (int i = 0; i < suiteRuns; i++) {
231	>	TestResult result = junit.textui.TestRunner.run(suite);
232	>	if (!result.wasSuccessful())
233	>	System.exit(1);
234		System.gc();
235		System.runFinalization();
236		}
153	–	System.exit(0);
237		}
238
239		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 166 | Line 249 | public class JSR166TestCase extends Test
249		return suite;
250		}
251
252	+	public static void addNamedTestClasses(TestSuite suite,
253	+	String... testClassNames) {
254	+	for (String testClassName : testClassNames) {
255	+	try {
256	+	Class<?> testClass = Class.forName(testClassName);
257	+	Method m = testClass.getDeclaredMethod("suite",
258	+	new Class<?>[0]);
259	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
260	+	} catch (Exception e) {
261	+	throw new Error("Missing test class", e);
262	+	}
263	+	}
264	+	}
265	+
266	+	public static final double JAVA_CLASS_VERSION;
267	+	public static final String JAVA_SPECIFICATION_VERSION;
268	+	static {
269	+	try {
270	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
271	+	new java.security.PrivilegedAction<Double>() {
272	+	public Double run() {
273	+	return Double.valueOf(System.getProperty("java.class.version"));}});
274	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
275	+	new java.security.PrivilegedAction<String>() {
276	+	public String run() {
277	+	return System.getProperty("java.specification.version");}});
278	+	} catch (Throwable t) {
279	+	throw new Error(t);
280	+	}
281	+	}
282	+
283	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
284	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
285	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
286	+	public static boolean atLeastJava9() {
287	+	return JAVA_CLASS_VERSION >= 53.0
288	+	// As of 2015-09, java9 still uses 52.0 class file version
289	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
290	+	}
291	+	public static boolean atLeastJava10() {
292	+	return JAVA_CLASS_VERSION >= 54.0
293	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
294	+	}
295	+
296		/**
297		* Collects all JSR166 unit tests as one suite.
298		*/
299		public static Test suite() {
300	<	return newTestSuite(
300	>	// Java7+ test classes
301	>	TestSuite suite = newTestSuite(
302		ForkJoinPoolTest.suite(),
303		ForkJoinTaskTest.suite(),
304		RecursiveActionTest.suite(),
#	Line 235 | Line 363 | public class JSR166TestCase extends Test
363		TreeSetTest.suite(),
364		TreeSubMapTest.suite(),
365		TreeSubSetTest.suite());
366	+
367	+	// Java8+ test classes
368	+	if (atLeastJava8()) {
369	+	String[] java8TestClassNames = {
370	+	"Atomic8Test",
371	+	"CompletableFutureTest",
372	+	"ConcurrentHashMap8Test",
373	+	"CountedCompleterTest",
374	+	"DoubleAccumulatorTest",
375	+	"DoubleAdderTest",
376	+	"ForkJoinPool8Test",
377	+	"ForkJoinTask8Test",
378	+	"LongAccumulatorTest",
379	+	"LongAdderTest",
380	+	"SplittableRandomTest",
381	+	"StampedLockTest",
382	+	"SubmissionPublisherTest",
383	+	"ThreadLocalRandom8Test",
384	+	};
385	+	addNamedTestClasses(suite, java8TestClassNames);
386	+	}
387	+
388	+	// Java9+ test classes
389	+	if (atLeastJava9()) {
390	+	String[] java9TestClassNames = {
391	+	// Currently empty, but expecting varhandle tests
392	+	};
393	+	addNamedTestClasses(suite, java9TestClassNames);
394	+	}
395	+
396	+	return suite;
397		}
398
399	+	/** Returns list of junit-style test method names in given class. */
400	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
401	+	Method[] methods = testClass.getDeclaredMethods();
402	+	ArrayList<String> names = new ArrayList<String>(methods.length);
403	+	for (Method method : methods) {
404	+	if (method.getName().startsWith("test")
405	+	&& Modifier.isPublic(method.getModifiers())
406	+	// method.getParameterCount() requires jdk8+
407	+	&& method.getParameterTypes().length == 0) {
408	+	names.add(method.getName());
409	+	}
410	+	}
411	+	return names;
412	+	}
413	+
414	+	/**
415	+	* Returns junit-style testSuite for the given test class, but
416	+	* parameterized by passing extra data to each test.
417	+	*/
418	+	public static <ExtraData> Test parameterizedTestSuite
419	+	(Class<? extends JSR166TestCase> testClass,
420	+	Class<ExtraData> dataClass,
421	+	ExtraData data) {
422	+	try {
423	+	TestSuite suite = new TestSuite();
424	+	Constructor c =
425	+	testClass.getDeclaredConstructor(dataClass, String.class);
426	+	for (String methodName : testMethodNames(testClass))
427	+	suite.addTest((Test) c.newInstance(data, methodName));
428	+	return suite;
429	+	} catch (Exception e) {
430	+	throw new Error(e);
431	+	}
432	+	}
433	+
434	+	/**
435	+	* Returns junit-style testSuite for the jdk8 extension of the
436	+	* given test class, but parameterized by passing extra data to
437	+	* each test.  Uses reflection to allow compilation in jdk7.
438	+	*/
439	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
440	+	(Class<? extends JSR166TestCase> testClass,
441	+	Class<ExtraData> dataClass,
442	+	ExtraData data) {
443	+	if (atLeastJava8()) {
444	+	String name = testClass.getName();
445	+	String name8 = name.replaceAll("Test$", "8Test");
446	+	if (name.equals(name8)) throw new Error(name);
447	+	try {
448	+	return (Test)
449	+	Class.forName(name8)
450	+	.getMethod("testSuite", new Class[] { dataClass })
451	+	.invoke(null, data);
452	+	} catch (Exception e) {
453	+	throw new Error(e);
454	+	}
455	+	} else {
456	+	return new TestSuite();
457	+	}
458	+
459	+	}
460	+
461	+	// Delays for timing-dependent tests, in milliseconds.
462
463		public static long SHORT_DELAY_MS;
464		public static long SMALL_DELAY_MS;
465		public static long MEDIUM_DELAY_MS;
466		public static long LONG_DELAY_MS;
467
246	–
468		/**
469		* Returns the shortest timed delay. This could
470		* be reimplemented to use for example a Property.
#	Line 252 | Line 473 | public class JSR166TestCase extends Test
473		return 50;
474		}
475
255	–
476		/**
477		* Sets delays as multiples of SHORT_DELAY.
478		*/
#	Line 260 | Line 480 | public class JSR166TestCase extends Test
480		SHORT_DELAY_MS = getShortDelay();
481		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
482		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
483	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
483	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
484	>	}
485	>
486	>	/**
487	>	* Returns a timeout in milliseconds to be used in tests that
488	>	* verify that operations block or time out.
489	>	*/
490	>	long timeoutMillis() {
491	>	return SHORT_DELAY_MS / 4;
492	>	}
493	>
494	>	/**
495	>	* Returns a new Date instance representing a time at least
496	>	* delayMillis milliseconds in the future.
497	>	*/
498	>	Date delayedDate(long delayMillis) {
499	>	// Add 1 because currentTimeMillis is known to round into the past.
500	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
501		}
502
503		/**
#	Line 284 | Line 521 | public class JSR166TestCase extends Test
521		}
522
523		/**
524	+	* Extra checks that get done for all test cases.
525	+	*
526		* Triggers test case failure if any thread assertions have failed,
527		* by rethrowing, in the test harness thread, any exception recorded
528		* earlier by threadRecordFailure.
529	+	*
530	+	* Triggers test case failure if interrupt status is set in the main thread.
531		*/
532		public void tearDown() throws Exception {
533		Throwable t = threadFailure.getAndSet(null);
#	Line 304 | Line 545 | public class JSR166TestCase extends Test
545		throw afe;
546		}
547		}
548	+
549	+	if (Thread.interrupted())
550	+	throw new AssertionFailedError("interrupt status set in main thread");
551	+
552	+	checkForkJoinPoolThreadLeaks();
553	+	}
554	+
555	+	/**
556	+	* Finds missing try { ... } finally { joinPool(e); }
557	+	*/
558	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
559	+	Thread[] survivors = new Thread[5];
560	+	int count = Thread.enumerate(survivors);
561	+	for (int i = 0; i < count; i++) {
562	+	Thread thread = survivors[i];
563	+	String name = thread.getName();
564	+	if (name.startsWith("ForkJoinPool-")) {
565	+	// give thread some time to terminate
566	+	thread.join(LONG_DELAY_MS);
567	+	if (!thread.isAlive()) continue;
568	+	throw new AssertionFailedError
569	+	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
570	+	toString(), name));
571	+	}
572	+	}
573		}
574
575		/**
#	Line 384 | Line 650 | public class JSR166TestCase extends Test
650		public void threadAssertEquals(Object x, Object y) {
651		try {
652		assertEquals(x, y);
653	<	} catch (AssertionFailedError t) {
654	<	threadRecordFailure(t);
655	<	throw t;
656	<	} catch (Throwable t) {
657	<	threadUnexpectedException(t);
653	>	} catch (AssertionFailedError fail) {
654	>	threadRecordFailure(fail);
655	>	throw fail;
656	>	} catch (Throwable fail) {
657	>	threadUnexpectedException(fail);
658		}
659		}
660
#	Line 400 | Line 666 | public class JSR166TestCase extends Test
666		public void threadAssertSame(Object x, Object y) {
667		try {
668		assertSame(x, y);
669	<	} catch (AssertionFailedError t) {
670	<	threadRecordFailure(t);
671	<	throw t;
669	>	} catch (AssertionFailedError fail) {
670	>	threadRecordFailure(fail);
671	>	throw fail;
672		}
673		}
674
#	Line 435 | Line 701 | public class JSR166TestCase extends Test
701		else {
702		AssertionFailedError afe =
703		new AssertionFailedError("unexpected exception: " + t);
704	<	t.initCause(t);
704	>	afe.initCause(t);
705		throw afe;
706		}
707		}
708
709		/**
710	+	* Delays, via Thread.sleep, for the given millisecond delay, but
711	+	* if the sleep is shorter than specified, may re-sleep or yield
712	+	* until time elapses.
713	+	*/
714	+	static void delay(long millis) throws InterruptedException {
715	+	long startTime = System.nanoTime();
716	+	long ns = millis * 1000 * 1000;
717	+	for (;;) {
718	+	if (millis > 0L)
719	+	Thread.sleep(millis);
720	+	else // too short to sleep
721	+	Thread.yield();
722	+	long d = ns - (System.nanoTime() - startTime);
723	+	if (d > 0L)
724	+	millis = d / (1000 * 1000);
725	+	else
726	+	break;
727	+	}
728	+	}
729	+
730	+	/**
731		* Waits out termination of a thread pool or fails doing so.
732		*/
733	<	public void joinPool(ExecutorService exec) {
733	>	void joinPool(ExecutorService pool) {
734		try {
735	<	exec.shutdown();
736	<	assertTrue("ExecutorService did not terminate in a timely manner",
737	<	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
735	>	pool.shutdown();
736	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
737	>	fail("ExecutorService " + pool +
738	>	" did not terminate in a timely manner");
739		} catch (SecurityException ok) {
740		// Allowed in case test doesn't have privs
741	<	} catch (InterruptedException ie) {
741	>	} catch (InterruptedException fail) {
742	>	fail("Unexpected InterruptedException");
743	>	}
744	>	}
745	>
746	>	/** Like Runnable, but with the freedom to throw anything */
747	>	interface Action { public void run() throws Throwable; }
748	>
749	>	/**
750	>	* Runs all the given actions in parallel, failing if any fail.
751	>	* Useful for running multiple variants of tests that are
752	>	* necessarily individually slow because they must block.
753	>	*/
754	>	void testInParallel(Action ... actions) {
755	>	ExecutorService pool = Executors.newCachedThreadPool();
756	>	try {
757	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
758	>	for (final Action action : actions)
759	>	futures.add(pool.submit(new CheckedRunnable() {
760	>	public void realRun() throws Throwable { action.run();}}));
761	>	for (Future<?> future : futures)
762	>	try {
763	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
764	>	} catch (ExecutionException ex) {
765	>	threadUnexpectedException(ex.getCause());
766	>	} catch (Exception ex) {
767	>	threadUnexpectedException(ex);
768	>	}
769	>	} finally {
770	>	joinPool(pool);
771	>	}
772	>	}
773	>
774	>	/**
775	>	* A debugging tool to print all stack traces, as jstack does.
776	>	*/
777	>	static void printAllStackTraces() {
778	>	for (ThreadInfo info :
779	>	ManagementFactory.getThreadMXBean()
780	>	.dumpAllThreads(true, true))
781	>	System.err.print(info);
782	>	}
783	>
784	>	/**
785	>	* Checks that thread does not terminate within the default
786	>	* millisecond delay of {@code timeoutMillis()}.
787	>	*/
788	>	void assertThreadStaysAlive(Thread thread) {
789	>	assertThreadStaysAlive(thread, timeoutMillis());
790	>	}
791	>
792	>	/**
793	>	* Checks that thread does not terminate within the given millisecond delay.
794	>	*/
795	>	void assertThreadStaysAlive(Thread thread, long millis) {
796	>	try {
797	>	// No need to optimize the failing case via Thread.join.
798	>	delay(millis);
799	>	assertTrue(thread.isAlive());
800	>	} catch (InterruptedException fail) {
801		fail("Unexpected InterruptedException");
802		}
803		}
804
805	+	/**
806	+	* Checks that the threads do not terminate within the default
807	+	* millisecond delay of {@code timeoutMillis()}.
808	+	*/
809	+	void assertThreadsStayAlive(Thread... threads) {
810	+	assertThreadsStayAlive(timeoutMillis(), threads);
811	+	}
812	+
813	+	/**
814	+	* Checks that the threads do not terminate within the given millisecond delay.
815	+	*/
816	+	void assertThreadsStayAlive(long millis, Thread... threads) {
817	+	try {
818	+	// No need to optimize the failing case via Thread.join.
819	+	delay(millis);
820	+	for (Thread thread : threads)
821	+	assertTrue(thread.isAlive());
822	+	} catch (InterruptedException fail) {
823	+	fail("Unexpected InterruptedException");
824	+	}
825	+	}
826	+
827	+	/**
828	+	* Checks that future.get times out, with the default timeout of
829	+	* {@code timeoutMillis()}.
830	+	*/
831	+	void assertFutureTimesOut(Future future) {
832	+	assertFutureTimesOut(future, timeoutMillis());
833	+	}
834	+
835	+	/**
836	+	* Checks that future.get times out, with the given millisecond timeout.
837	+	*/
838	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
839	+	long startTime = System.nanoTime();
840	+	try {
841	+	future.get(timeoutMillis, MILLISECONDS);
842	+	shouldThrow();
843	+	} catch (TimeoutException success) {
844	+	} catch (Exception fail) {
845	+	threadUnexpectedException(fail);
846	+	} finally { future.cancel(true); }
847	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
848	+	}
849
850		/**
851		* Fails with message "should throw exception".
#	Line 495 | Line 886 | public class JSR166TestCase extends Test
886		public static final Integer m6  = new Integer(-6);
887		public static final Integer m10 = new Integer(-10);
888
498	–
889		/**
890		* Runs Runnable r with a security policy that permits precisely
891		* the specified permissions.  If there is no current security
#	Line 507 | Line 897 | public class JSR166TestCase extends Test
897		SecurityManager sm = System.getSecurityManager();
898		if (sm == null) {
899		r.run();
900	+	}
901	+	runWithSecurityManagerWithPermissions(r, permissions);
902	+	}
903	+
904	+	/**
905	+	* Runs Runnable r with a security policy that permits precisely
906	+	* the specified permissions.  If there is no current security
907	+	* manager, a temporary one is set for the duration of the
908	+	* Runnable.  We require that any security manager permit
909	+	* getPolicy/setPolicy.
910	+	*/
911	+	public void runWithSecurityManagerWithPermissions(Runnable r,
912	+	Permission... permissions) {
913	+	SecurityManager sm = System.getSecurityManager();
914	+	if (sm == null) {
915		Policy savedPolicy = Policy.getPolicy();
916		try {
917		Policy.setPolicy(permissivePolicy());
918		System.setSecurityManager(new SecurityManager());
919	<	runWithPermissions(r, permissions);
919	>	runWithSecurityManagerWithPermissions(r, permissions);
920		} finally {
921		System.setSecurityManager(null);
922		Policy.setPolicy(savedPolicy);
#	Line 559 | Line 964 | public class JSR166TestCase extends Test
964		return perms.implies(p);
965		}
966		public void refresh() {}
967	+	public String toString() {
968	+	List<Permission> ps = new ArrayList<Permission>();
969	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
970	+	ps.add(e.nextElement());
971	+	return "AdjustablePolicy with permissions " + ps;
972	+	}
973		}
974
975		/**
#	Line 586 | Line 997 | public class JSR166TestCase extends Test
997		*/
998		void sleep(long millis) {
999		try {
1000	<	Thread.sleep(millis);
1001	<	} catch (InterruptedException ie) {
1000	>	delay(millis);
1001	>	} catch (InterruptedException fail) {
1002		AssertionFailedError afe =
1003		new AssertionFailedError("Unexpected InterruptedException");
1004	<	afe.initCause(ie);
1004	>	afe.initCause(fail);
1005		throw afe;
1006		}
1007		}
1008
1009		/**
1010	<	* Sleeps until the timeout has elapsed, or interrupted.
600	<	* Does <em>NOT</em> throw InterruptedException.
601	<	*/
602	<	void sleepTillInterrupted(long timeoutMillis) {
603	<	try {
604	<	Thread.sleep(timeoutMillis);
605	<	} catch (InterruptedException wakeup) {}
606	<	}
607	<
608	<	/**
609	<	* Waits up to the specified number of milliseconds for the given
1010	>	* Spin-waits up to the specified number of milliseconds for the given
1011		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1012		*/
1013		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1014	<	long timeoutNanos = timeoutMillis * 1000L * 1000L;
614	<	long t0 = System.nanoTime();
1014	>	long startTime = System.nanoTime();
1015		for (;;) {
1016		Thread.State s = thread.getState();
1017		if (s == Thread.State.BLOCKED ||
#	Line 620 | Line 1020 | public class JSR166TestCase extends Test
1020		return;
1021		else if (s == Thread.State.TERMINATED)
1022		fail("Unexpected thread termination");
1023	<	else if (System.nanoTime() - t0 > timeoutNanos) {
1023	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
1024		threadAssertTrue(thread.isAlive());
1025		return;
1026		}
#	Line 629 | Line 1029 | public class JSR166TestCase extends Test
1029		}
1030
1031		/**
1032	+	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1033	+	* state: BLOCKED, WAITING, or TIMED_WAITING.
1034	+	*/
1035	+	void waitForThreadToEnterWaitState(Thread thread) {
1036	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1037	+	}
1038	+
1039	+	/**
1040		* Returns the number of milliseconds since time given by
1041		* startNanoTime, which must have been previously returned from a
1042	<	* call to {@link System.nanoTime()}.
1042	>	* call to {@link System#nanoTime()}.
1043		*/
1044	<	long millisElapsedSince(long startNanoTime) {
1044	>	static long millisElapsedSince(long startNanoTime) {
1045		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1046		}
1047
1048	+	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1049	+	//         long startTime = System.nanoTime();
1050	+	//         try {
1051	+	//             r.run();
1052	+	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1053	+	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1054	+	//             throw new AssertionFailedError("did not return promptly");
1055	+	//     }
1056	+
1057	+	//     void assertTerminatesPromptly(Runnable r) {
1058	+	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1059	+	//     }
1060	+
1061	+	/**
1062	+	* Checks that timed f.get() returns the expected value, and does not
1063	+	* wait for the timeout to elapse before returning.
1064	+	*/
1065	+	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1066	+	long startTime = System.nanoTime();
1067	+	try {
1068	+	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1069	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
1070	+	if (millisElapsedSince(startTime) > timeoutMillis/2)
1071	+	throw new AssertionFailedError("timed get did not return promptly");
1072	+	}
1073	+
1074	+	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1075	+	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1076	+	}
1077	+
1078		/**
1079		* Returns a new started daemon Thread running the given runnable.
1080		*/
#	Line 655 | Line 1093 | public class JSR166TestCase extends Test
1093		void awaitTermination(Thread t, long timeoutMillis) {
1094		try {
1095		t.join(timeoutMillis);
1096	<	} catch (InterruptedException ie) {
1097	<	threadUnexpectedException(ie);
1096	>	} catch (InterruptedException fail) {
1097	>	threadUnexpectedException(fail);
1098		} finally {
1099	<	if (t.isAlive()) {
1099	>	if (t.getState() != Thread.State.TERMINATED) {
1100		t.interrupt();
1101		fail("Test timed out");
1102		}
1103		}
1104		}
1105
1106	+	/**
1107	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1108	+	* terminate (using {@link Thread#join(long)}), else interrupts
1109	+	* the thread (in the hope that it may terminate later) and fails.
1110	+	*/
1111	+	void awaitTermination(Thread t) {
1112	+	awaitTermination(t, LONG_DELAY_MS);
1113	+	}
1114	+
1115		// Some convenient Runnable classes
1116
1117		public abstract class CheckedRunnable implements Runnable {
#	Line 673 | Line 1120 | public class JSR166TestCase extends Test
1120		public final void run() {
1121		try {
1122		realRun();
1123	<	} catch (Throwable t) {
1124	<	threadUnexpectedException(t);
1123	>	} catch (Throwable fail) {
1124	>	threadUnexpectedException(fail);
1125		}
1126		}
1127		}
#	Line 727 | Line 1174 | public class JSR166TestCase extends Test
1174		realRun();
1175		threadShouldThrow("InterruptedException");
1176		} catch (InterruptedException success) {
1177	<	} catch (Throwable t) {
1178	<	threadUnexpectedException(t);
1177	>	threadAssertFalse(Thread.interrupted());
1178	>	} catch (Throwable fail) {
1179	>	threadUnexpectedException(fail);
1180		}
1181		}
1182		}
#	Line 739 | Line 1187 | public class JSR166TestCase extends Test
1187		public final T call() {
1188		try {
1189		return realCall();
1190	<	} catch (Throwable t) {
1191	<	threadUnexpectedException(t);
1190	>	} catch (Throwable fail) {
1191	>	threadUnexpectedException(fail);
1192		return null;
1193		}
1194		}
#	Line 756 | Line 1204 | public class JSR166TestCase extends Test
1204		threadShouldThrow("InterruptedException");
1205		return result;
1206		} catch (InterruptedException success) {
1207	<	} catch (Throwable t) {
1208	<	threadUnexpectedException(t);
1207	>	threadAssertFalse(Thread.interrupted());
1208	>	} catch (Throwable fail) {
1209	>	threadUnexpectedException(fail);
1210		}
1211		return null;
1212		}
#	Line 787 | Line 1236 | public class JSR166TestCase extends Test
1236		}};
1237		}
1238
1239	+	public Runnable awaiter(final CountDownLatch latch) {
1240	+	return new CheckedRunnable() {
1241	+	public void realRun() throws InterruptedException {
1242	+	await(latch);
1243	+	}};
1244	+	}
1245	+
1246	+	public void await(CountDownLatch latch) {
1247	+	try {
1248	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1249	+	} catch (Throwable fail) {
1250	+	threadUnexpectedException(fail);
1251	+	}
1252	+	}
1253	+
1254	+	public void await(Semaphore semaphore) {
1255	+	try {
1256	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1257	+	} catch (Throwable fail) {
1258	+	threadUnexpectedException(fail);
1259	+	}
1260	+	}
1261	+
1262	+	//     /**
1263	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1264	+	//      */
1265	+	//     public void await(AtomicBoolean flag) {
1266	+	//         await(flag, LONG_DELAY_MS);
1267	+	//     }
1268	+
1269	+	//     /**
1270	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1271	+	//      */
1272	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1273	+	//         long startTime = System.nanoTime();
1274	+	//         while (!flag.get()) {
1275	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1276	+	//                 throw new AssertionFailedError("timed out");
1277	+	//             Thread.yield();
1278	+	//         }
1279	+	//     }
1280	+
1281		public static class NPETask implements Callable<String> {
1282		public String call() { throw new NullPointerException(); }
1283		}
#	Line 797 | Line 1288 | public class JSR166TestCase extends Test
1288
1289		public class ShortRunnable extends CheckedRunnable {
1290		protected void realRun() throws Throwable {
1291	<	Thread.sleep(SHORT_DELAY_MS);
1291	>	delay(SHORT_DELAY_MS);
1292		}
1293		}
1294
1295		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1296		protected void realRun() throws InterruptedException {
1297	<	Thread.sleep(SHORT_DELAY_MS);
1297	>	delay(SHORT_DELAY_MS);
1298		}
1299		}
1300
1301		public class SmallRunnable extends CheckedRunnable {
1302		protected void realRun() throws Throwable {
1303	<	Thread.sleep(SMALL_DELAY_MS);
1303	>	delay(SMALL_DELAY_MS);
1304		}
1305		}
1306
1307		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1308		protected void realRun() {
1309		try {
1310	<	Thread.sleep(SMALL_DELAY_MS);
1310	>	delay(SMALL_DELAY_MS);
1311		} catch (InterruptedException ok) {}
1312		}
1313		}
1314
1315		public class SmallCallable extends CheckedCallable {
1316		protected Object realCall() throws InterruptedException {
1317	<	Thread.sleep(SMALL_DELAY_MS);
1317	>	delay(SMALL_DELAY_MS);
1318		return Boolean.TRUE;
1319		}
1320		}
1321
1322		public class MediumRunnable extends CheckedRunnable {
1323		protected void realRun() throws Throwable {
1324	<	Thread.sleep(MEDIUM_DELAY_MS);
1324	>	delay(MEDIUM_DELAY_MS);
1325		}
1326		}
1327
1328		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1329		protected void realRun() throws InterruptedException {
1330	<	Thread.sleep(MEDIUM_DELAY_MS);
1330	>	delay(MEDIUM_DELAY_MS);
1331		}
1332		}
1333
#	Line 844 | Line 1335 | public class JSR166TestCase extends Test
1335		return new CheckedRunnable() {
1336		protected void realRun() {
1337		try {
1338	<	Thread.sleep(timeoutMillis);
1338	>	delay(timeoutMillis);
1339		} catch (InterruptedException ok) {}
1340		}};
1341		}
#	Line 852 | Line 1343 | public class JSR166TestCase extends Test
1343		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1344		protected void realRun() {
1345		try {
1346	<	Thread.sleep(MEDIUM_DELAY_MS);
1346	>	delay(MEDIUM_DELAY_MS);
1347		} catch (InterruptedException ok) {}
1348		}
1349		}
#	Line 860 | Line 1351 | public class JSR166TestCase extends Test
1351		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1352		protected void realRun() {
1353		try {
1354	<	Thread.sleep(LONG_DELAY_MS);
1354	>	delay(LONG_DELAY_MS);
1355		} catch (InterruptedException ok) {}
1356		}
1357		}
#	Line 884 | Line 1375 | public class JSR166TestCase extends Test
1375		public boolean isDone() { return done; }
1376		public void run() {
1377		try {
1378	<	Thread.sleep(timeoutMillis);
1378	>	delay(timeoutMillis);
1379		done = true;
1380		} catch (InterruptedException ok) {}
1381		}
#	Line 895 | Line 1386 | public class JSR166TestCase extends Test
1386		public volatile boolean done = false;
1387		public void run() {
1388		try {
1389	<	Thread.sleep(SHORT_DELAY_MS);
1389	>	delay(SHORT_DELAY_MS);
1390		done = true;
1391		} catch (InterruptedException ok) {}
1392		}
#	Line 905 | Line 1396 | public class JSR166TestCase extends Test
1396		public volatile boolean done = false;
1397		public void run() {
1398		try {
1399	<	Thread.sleep(SMALL_DELAY_MS);
1399	>	delay(SMALL_DELAY_MS);
1400		done = true;
1401		} catch (InterruptedException ok) {}
1402		}
#	Line 915 | Line 1406 | public class JSR166TestCase extends Test
1406		public volatile boolean done = false;
1407		public void run() {
1408		try {
1409	<	Thread.sleep(MEDIUM_DELAY_MS);
1409	>	delay(MEDIUM_DELAY_MS);
1410		done = true;
1411		} catch (InterruptedException ok) {}
1412		}
#	Line 925 | Line 1416 | public class JSR166TestCase extends Test
1416		public volatile boolean done = false;
1417		public void run() {
1418		try {
1419	<	Thread.sleep(LONG_DELAY_MS);
1419	>	delay(LONG_DELAY_MS);
1420		done = true;
1421		} catch (InterruptedException ok) {}
1422		}
#	Line 942 | Line 1433 | public class JSR166TestCase extends Test
1433		public volatile boolean done = false;
1434		public Object call() {
1435		try {
1436	<	Thread.sleep(SMALL_DELAY_MS);
1436	>	delay(SMALL_DELAY_MS);
1437		done = true;
1438		} catch (InterruptedException ok) {}
1439		return Boolean.TRUE;
#	Line 955 | Line 1446 | public class JSR166TestCase extends Test
1446		public abstract class CheckedRecursiveAction extends RecursiveAction {
1447		protected abstract void realCompute() throws Throwable;
1448
1449	<	public final void compute() {
1449	>	@Override protected final void compute() {
1450		try {
1451		realCompute();
1452	<	} catch (Throwable t) {
1453	<	threadUnexpectedException(t);
1452	>	} catch (Throwable fail) {
1453	>	threadUnexpectedException(fail);
1454		}
1455		}
1456		}
#	Line 970 | Line 1461 | public class JSR166TestCase extends Test
1461		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1462		protected abstract T realCompute() throws Throwable;
1463
1464	<	public final T compute() {
1464	>	@Override protected final T compute() {
1465		try {
1466		return realCompute();
1467	<	} catch (Throwable t) {
1468	<	threadUnexpectedException(t);
1467	>	} catch (Throwable fail) {
1468	>	threadUnexpectedException(fail);
1469		return null;
1470		}
1471		}
#	Line 989 | Line 1480 | public class JSR166TestCase extends Test
1480		}
1481
1482		/**
1483	<	* A CyclicBarrier that fails with AssertionFailedErrors instead
1484	<	* of throwing checked exceptions.
1483	>	* A CyclicBarrier that uses timed await and fails with
1484	>	* AssertionFailedErrors instead of throwing checked exceptions.
1485		*/
1486		public class CheckedBarrier extends CyclicBarrier {
1487		public CheckedBarrier(int parties) { super(parties); }
1488
1489		public int await() {
1490		try {
1491	<	return super.await();
1492	<	} catch (Exception e) {
1491	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1492	>	} catch (TimeoutException timedOut) {
1493	>	throw new AssertionFailedError("timed out");
1494	>	} catch (Exception fail) {
1495		AssertionFailedError afe =
1496	<	new AssertionFailedError("Unexpected exception: " + e);
1497	<	afe.initCause(e);
1496	>	new AssertionFailedError("Unexpected exception: " + fail);
1497	>	afe.initCause(fail);
1498		throw afe;
1499		}
1500		}
1501		}
1502
1503	+	void checkEmpty(BlockingQueue q) {
1504	+	try {
1505	+	assertTrue(q.isEmpty());
1506	+	assertEquals(0, q.size());
1507	+	assertNull(q.peek());
1508	+	assertNull(q.poll());
1509	+	assertNull(q.poll(0, MILLISECONDS));
1510	+	assertEquals(q.toString(), "[]");
1511	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1512	+	assertFalse(q.iterator().hasNext());
1513	+	try {
1514	+	q.element();
1515	+	shouldThrow();
1516	+	} catch (NoSuchElementException success) {}
1517	+	try {
1518	+	q.iterator().next();
1519	+	shouldThrow();
1520	+	} catch (NoSuchElementException success) {}
1521	+	try {
1522	+	q.remove();
1523	+	shouldThrow();
1524	+	} catch (NoSuchElementException success) {}
1525	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1526	+	}
1527	+
1528	+	void assertSerialEquals(Object x, Object y) {
1529	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1530	+	}
1531	+
1532	+	void assertNotSerialEquals(Object x, Object y) {
1533	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1534	+	}
1535	+
1536	+	byte[] serialBytes(Object o) {
1537	+	try {
1538	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1539	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1540	+	oos.writeObject(o);
1541	+	oos.flush();
1542	+	oos.close();
1543	+	return bos.toByteArray();
1544	+	} catch (Throwable fail) {
1545	+	threadUnexpectedException(fail);
1546	+	return new byte[0];
1547	+	}
1548	+	}
1549	+
1550	+	@SuppressWarnings("unchecked")
1551	+	<T> T serialClone(T o) {
1552	+	try {
1553	+	ObjectInputStream ois = new ObjectInputStream
1554	+	(new ByteArrayInputStream(serialBytes(o)));
1555	+	T clone = (T) ois.readObject();
1556	+	assertSame(o.getClass(), clone.getClass());
1557	+	return clone;
1558	+	} catch (Throwable fail) {
1559	+	threadUnexpectedException(fail);
1560	+	return null;
1561	+	}
1562	+	}
1563	+
1564	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1565	+	Runnable... throwingActions) {
1566	+	for (Runnable throwingAction : throwingActions) {
1567	+	boolean threw = false;
1568	+	try { throwingAction.run(); }
1569	+	catch (Throwable t) {
1570	+	threw = true;
1571	+	if (!expectedExceptionClass.isInstance(t)) {
1572	+	AssertionFailedError afe =
1573	+	new AssertionFailedError
1574	+	("Expected " + expectedExceptionClass.getName() +
1575	+	", got " + t.getClass().getName());
1576	+	afe.initCause(t);
1577	+	threadUnexpectedException(afe);
1578	+	}
1579	+	}
1580	+	if (!threw)
1581	+	shouldThrow(expectedExceptionClass.getName());
1582	+	}
1583	+	}
1584	+
1585	+	public void assertIteratorExhausted(Iterator<?> it) {
1586	+	try {
1587	+	it.next();
1588	+	shouldThrow();
1589	+	} catch (NoSuchElementException success) {}
1590	+	assertFalse(it.hasNext());
1591	+	}
1592		}

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