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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.90 by jsr166, Wed Jun 22 07:46:57 2011 UTC vs.
Revision 1.145 by jsr166, Fri Sep 25 05:41:29 2015 UTC

#	Line 6 | Line 6
6		* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
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.util.Arrays;
17	<	import java.util.Date;
18	<	import java.util.NoSuchElementException;
19	<	import java.util.PropertyPermission;
20	<	import java.util.concurrent.*;
19	<	import java.util.concurrent.atomic.AtomicBoolean;
20	<	import java.util.concurrent.atomic.AtomicReference;
21	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
22	<	import static java.util.concurrent.TimeUnit.NANOSECONDS;
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 27 | 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 38 | 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 60 | 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 109 | 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 122 | 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	<	long t0 = System.nanoTime();
202	<	try {
201	>	for (int i = 0; i < 2; i++) {
202	>	long startTime = System.nanoTime();
203		super.runTest();
204	<	} finally {
205	<	long elapsedMillis =
206	<	(System.nanoTime() - t0) / (1000L * 1000L);
207	<	if (elapsedMillis >= profileThreshold)
204	>	long elapsedMillis = millisElapsedSince(startTime);
205	>	if (elapsedMillis < profileThreshold)
206	>	break;
207	>	// Never report first run of any test; treat it as a
208	>	// warmup run, notably to trigger all needed classloading,
209	>	if (i > 0)
210		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
211		}
212		}
213
214		/**
215	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
215	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
216		*/
217		public static void main(String[] args) {
218	+	main(suite(), args);
219	+	}
220	+
221	+	/**
222	+	* Runs all unit tests in the given test suite.
223	+	* Actual behavior influenced by jsr166.* system properties.
224	+	*/
225	+	static void main(Test suite, String[] args) {
226		if (useSecurityManager) {
227		System.err.println("Setting a permissive security manager");
228		Policy.setPolicy(permissivePolicy());
229		System.setSecurityManager(new SecurityManager());
230		}
231	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
232	<
233	<	Test s = suite();
234	<	for (int i = 0; i < iters; ++i) {
157	<	junit.textui.TestRunner.run(s);
231	>	for (int i = 0; i < suiteRuns; i++) {
232	>	TestResult result = junit.textui.TestRunner.run(suite);
233	>	if (!result.wasSuccessful())
234	>	System.exit(1);
235		System.gc();
236		System.runFinalization();
237		}
161	–	System.exit(0);
238		}
239
240		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 174 | Line 250 | public class JSR166TestCase extends Test
250		return suite;
251		}
252
253	+	public static void addNamedTestClasses(TestSuite suite,
254	+	String... testClassNames) {
255	+	for (String testClassName : testClassNames) {
256	+	try {
257	+	Class<?> testClass = Class.forName(testClassName);
258	+	Method m = testClass.getDeclaredMethod("suite",
259	+	new Class<?>[0]);
260	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
261	+	} catch (Exception e) {
262	+	throw new Error("Missing test class", e);
263	+	}
264	+	}
265	+	}
266	+
267	+	public static final double JAVA_CLASS_VERSION;
268	+	public static final String JAVA_SPECIFICATION_VERSION;
269	+	static {
270	+	try {
271	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
272	+	new java.security.PrivilegedAction<Double>() {
273	+	public Double run() {
274	+	return Double.valueOf(System.getProperty("java.class.version"));}});
275	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
276	+	new java.security.PrivilegedAction<String>() {
277	+	public String run() {
278	+	return System.getProperty("java.specification.version");}});
279	+	} catch (Throwable t) {
280	+	throw new Error(t);
281	+	}
282	+	}
283	+
284	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
285	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
286	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
287	+	public static boolean atLeastJava9() {
288	+	return JAVA_CLASS_VERSION >= 53.0
289	+	// As of 2015-09, java9 still uses 52.0 class file version
290	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
291	+	}
292	+	public static boolean atLeastJava10() {
293	+	return JAVA_CLASS_VERSION >= 54.0
294	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
295	+	}
296	+
297		/**
298		* Collects all JSR166 unit tests as one suite.
299		*/
300		public static Test suite() {
301	<	return newTestSuite(
301	>	// Java7+ test classes
302	>	TestSuite suite = newTestSuite(
303		ForkJoinPoolTest.suite(),
304		ForkJoinTaskTest.suite(),
305		RecursiveActionTest.suite(),
#	Line 243 | Line 364 | public class JSR166TestCase extends Test
364		TreeSetTest.suite(),
365		TreeSubMapTest.suite(),
366		TreeSubSetTest.suite());
367	+
368	+	// Java8+ test classes
369	+	if (atLeastJava8()) {
370	+	String[] java8TestClassNames = {
371	+	"Atomic8Test",
372	+	"CompletableFutureTest",
373	+	"ConcurrentHashMap8Test",
374	+	"CountedCompleterTest",
375	+	"DoubleAccumulatorTest",
376	+	"DoubleAdderTest",
377	+	"ForkJoinPool8Test",
378	+	"ForkJoinTask8Test",
379	+	"LongAccumulatorTest",
380	+	"LongAdderTest",
381	+	"SplittableRandomTest",
382	+	"StampedLockTest",
383	+	"SubmissionPublisherTest",
384	+	"ThreadLocalRandom8Test",
385	+	};
386	+	addNamedTestClasses(suite, java8TestClassNames);
387	+	}
388	+
389	+	// Java9+ test classes
390	+	if (atLeastJava9()) {
391	+	String[] java9TestClassNames = {
392	+	// Currently empty, but expecting varhandle tests
393	+	};
394	+	addNamedTestClasses(suite, java9TestClassNames);
395	+	}
396	+
397	+	return suite;
398		}
399
400	+	/** Returns list of junit-style test method names in given class. */
401	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
402	+	Method[] methods = testClass.getDeclaredMethods();
403	+	ArrayList<String> names = new ArrayList<String>(methods.length);
404	+	for (Method method : methods) {
405	+	if (method.getName().startsWith("test")
406	+	&& Modifier.isPublic(method.getModifiers())
407	+	// method.getParameterCount() requires jdk8+
408	+	&& method.getParameterTypes().length == 0) {
409	+	names.add(method.getName());
410	+	}
411	+	}
412	+	return names;
413	+	}
414	+
415	+	/**
416	+	* Returns junit-style testSuite for the given test class, but
417	+	* parameterized by passing extra data to each test.
418	+	*/
419	+	public static <ExtraData> Test parameterizedTestSuite
420	+	(Class<? extends JSR166TestCase> testClass,
421	+	Class<ExtraData> dataClass,
422	+	ExtraData data) {
423	+	try {
424	+	TestSuite suite = new TestSuite();
425	+	Constructor c =
426	+	testClass.getDeclaredConstructor(dataClass, String.class);
427	+	for (String methodName : testMethodNames(testClass))
428	+	suite.addTest((Test) c.newInstance(data, methodName));
429	+	return suite;
430	+	} catch (Exception e) {
431	+	throw new Error(e);
432	+	}
433	+	}
434	+
435	+	/**
436	+	* Returns junit-style testSuite for the jdk8 extension of the
437	+	* given test class, but parameterized by passing extra data to
438	+	* each test.  Uses reflection to allow compilation in jdk7.
439	+	*/
440	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
441	+	(Class<? extends JSR166TestCase> testClass,
442	+	Class<ExtraData> dataClass,
443	+	ExtraData data) {
444	+	if (atLeastJava8()) {
445	+	String name = testClass.getName();
446	+	String name8 = name.replaceAll("Test$", "8Test");
447	+	if (name.equals(name8)) throw new Error(name);
448	+	try {
449	+	return (Test)
450	+	Class.forName(name8)
451	+	.getMethod("testSuite", new Class[] { dataClass })
452	+	.invoke(null, data);
453	+	} catch (Exception e) {
454	+	throw new Error(e);
455	+	}
456	+	} else {
457	+	return new TestSuite();
458	+	}
459	+
460	+	}
461	+
462	+	// Delays for timing-dependent tests, in milliseconds.
463
464		public static long SHORT_DELAY_MS;
465		public static long SMALL_DELAY_MS;
466		public static long MEDIUM_DELAY_MS;
467		public static long LONG_DELAY_MS;
468
254	–
469		/**
470		* Returns the shortest timed delay. This could
471		* be reimplemented to use for example a Property.
#	Line 279 | Line 493 | public class JSR166TestCase extends Test
493		}
494
495		/**
496	<	* Returns a new Date instance representing a time delayMillis
497	<	* milliseconds in the future.
496	>	* Returns a new Date instance representing a time at least
497	>	* delayMillis milliseconds in the future.
498		*/
499		Date delayedDate(long delayMillis) {
500	<	return new Date(System.currentTimeMillis() + delayMillis);
500	>	// Add 1 because currentTimeMillis is known to round into the past.
501	>	return new Date(System.currentTimeMillis() + delayMillis + 1);
502		}
503
504		/**
#	Line 334 | Line 549 | public class JSR166TestCase extends Test
549
550		if (Thread.interrupted())
551		throw new AssertionFailedError("interrupt status set in main thread");
552	+
553	+	checkForkJoinPoolThreadLeaks();
554	+	}
555	+
556	+	/**
557	+	* Finds missing try { ... } finally { joinPool(e); }
558	+	*/
559	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
560	+	Thread[] survivors = new Thread[5];
561	+	int count = Thread.enumerate(survivors);
562	+	for (int i = 0; i < count; i++) {
563	+	Thread thread = survivors[i];
564	+	String name = thread.getName();
565	+	if (name.startsWith("ForkJoinPool-")) {
566	+	// give thread some time to terminate
567	+	thread.join(LONG_DELAY_MS);
568	+	if (!thread.isAlive()) continue;
569	+	throw new AssertionFailedError
570	+	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
571	+	toString(), name));
572	+	}
573	+	}
574		}
575
576		/**
#	Line 414 | Line 651 | public class JSR166TestCase extends Test
651		public void threadAssertEquals(Object x, Object y) {
652		try {
653		assertEquals(x, y);
654	<	} catch (AssertionFailedError t) {
655	<	threadRecordFailure(t);
656	<	throw t;
657	<	} catch (Throwable t) {
658	<	threadUnexpectedException(t);
654	>	} catch (AssertionFailedError fail) {
655	>	threadRecordFailure(fail);
656	>	throw fail;
657	>	} catch (Throwable fail) {
658	>	threadUnexpectedException(fail);
659		}
660		}
661
#	Line 430 | Line 667 | public class JSR166TestCase extends Test
667		public void threadAssertSame(Object x, Object y) {
668		try {
669		assertSame(x, y);
670	<	} catch (AssertionFailedError t) {
671	<	threadRecordFailure(t);
672	<	throw t;
670	>	} catch (AssertionFailedError fail) {
671	>	threadRecordFailure(fail);
672	>	throw fail;
673		}
674		}
675
#	Line 494 | Line 731 | public class JSR166TestCase extends Test
731		/**
732		* Waits out termination of a thread pool or fails doing so.
733		*/
734	<	void joinPool(ExecutorService exec) {
734	>	void joinPool(ExecutorService pool) {
735		try {
736	<	exec.shutdown();
737	<	assertTrue("ExecutorService did not terminate in a timely manner",
738	<	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
736	>	pool.shutdown();
737	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
738	>	fail("ExecutorService " + pool +
739	>	" did not terminate in a timely manner");
740		} catch (SecurityException ok) {
741		// Allowed in case test doesn't have privs
742	<	} catch (InterruptedException ie) {
742	>	} catch (InterruptedException fail) {
743		fail("Unexpected InterruptedException");
744		}
745		}
746
747	+	/** Like Runnable, but with the freedom to throw anything */
748	+	interface Action { public void run() throws Throwable; }
749	+
750	+	/**
751	+	* Runs all the given actions in parallel, failing if any fail.
752	+	* Useful for running multiple variants of tests that are
753	+	* necessarily individually slow because they must block.
754	+	*/
755	+	void testInParallel(Action ... actions) {
756	+	ExecutorService pool = Executors.newCachedThreadPool();
757	+	try {
758	+	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
759	+	for (final Action action : actions)
760	+	futures.add(pool.submit(new CheckedRunnable() {
761	+	public void realRun() throws Throwable { action.run();}}));
762	+	for (Future<?> future : futures)
763	+	try {
764	+	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
765	+	} catch (ExecutionException ex) {
766	+	threadUnexpectedException(ex.getCause());
767	+	} catch (Exception ex) {
768	+	threadUnexpectedException(ex);
769	+	}
770	+	} finally {
771	+	joinPool(pool);
772	+	}
773	+	}
774	+
775	+	/**
776	+	* A debugging tool to print all stack traces, as jstack does.
777	+	*/
778	+	static void printAllStackTraces() {
779	+	for (ThreadInfo info :
780	+	ManagementFactory.getThreadMXBean()
781	+	.dumpAllThreads(true, true))
782	+	System.err.print(info);
783	+	}
784	+
785		/**
786		* Checks that thread does not terminate within the default
787		* millisecond delay of {@code timeoutMillis()}.
#	Line 522 | Line 798 | public class JSR166TestCase extends Test
798		// No need to optimize the failing case via Thread.join.
799		delay(millis);
800		assertTrue(thread.isAlive());
801	<	} catch (InterruptedException ie) {
801	>	} catch (InterruptedException fail) {
802		fail("Unexpected InterruptedException");
803		}
804		}
#	Line 544 | Line 820 | public class JSR166TestCase extends Test
820		delay(millis);
821		for (Thread thread : threads)
822		assertTrue(thread.isAlive());
823	<	} catch (InterruptedException ie) {
823	>	} catch (InterruptedException fail) {
824		fail("Unexpected InterruptedException");
825		}
826		}
#	Line 566 | Line 842 | public class JSR166TestCase extends Test
842		future.get(timeoutMillis, MILLISECONDS);
843		shouldThrow();
844		} catch (TimeoutException success) {
845	<	} catch (Exception e) {
846	<	threadUnexpectedException(e);
845	>	} catch (Exception fail) {
846	>	threadUnexpectedException(fail);
847		} finally { future.cancel(true); }
848		assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
849		}
#	Line 611 | Line 887 | public class JSR166TestCase extends Test
887		public static final Integer m6  = new Integer(-6);
888		public static final Integer m10 = new Integer(-10);
889
614	–
890		/**
891		* Runs Runnable r with a security policy that permits precisely
892		* the specified permissions.  If there is no current security
#	Line 623 | Line 898 | public class JSR166TestCase extends Test
898		SecurityManager sm = System.getSecurityManager();
899		if (sm == null) {
900		r.run();
901	+	}
902	+	runWithSecurityManagerWithPermissions(r, permissions);
903	+	}
904	+
905	+	/**
906	+	* Runs Runnable r with a security policy that permits precisely
907	+	* the specified permissions.  If there is no current security
908	+	* manager, a temporary one is set for the duration of the
909	+	* Runnable.  We require that any security manager permit
910	+	* getPolicy/setPolicy.
911	+	*/
912	+	public void runWithSecurityManagerWithPermissions(Runnable r,
913	+	Permission... permissions) {
914	+	SecurityManager sm = System.getSecurityManager();
915	+	if (sm == null) {
916		Policy savedPolicy = Policy.getPolicy();
917		try {
918		Policy.setPolicy(permissivePolicy());
919		System.setSecurityManager(new SecurityManager());
920	<	runWithPermissions(r, permissions);
920	>	runWithSecurityManagerWithPermissions(r, permissions);
921		} finally {
922		System.setSecurityManager(null);
923		Policy.setPolicy(savedPolicy);
#	Line 675 | Line 965 | public class JSR166TestCase extends Test
965		return perms.implies(p);
966		}
967		public void refresh() {}
968	+	public String toString() {
969	+	List<Permission> ps = new ArrayList<Permission>();
970	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
971	+	ps.add(e.nextElement());
972	+	return "AdjustablePolicy with permissions " + ps;
973	+	}
974		}
975
976		/**
#	Line 703 | Line 999 | public class JSR166TestCase extends Test
999		void sleep(long millis) {
1000		try {
1001		delay(millis);
1002	<	} catch (InterruptedException ie) {
1002	>	} catch (InterruptedException fail) {
1003		AssertionFailedError afe =
1004		new AssertionFailedError("Unexpected InterruptedException");
1005	<	afe.initCause(ie);
1005	>	afe.initCause(fail);
1006		throw afe;
1007		}
1008		}
#	Line 744 | Line 1040 | public class JSR166TestCase extends Test
1040		/**
1041		* Returns the number of milliseconds since time given by
1042		* startNanoTime, which must have been previously returned from a
1043	<	* call to {@link System.nanoTime()}.
1043	>	* call to {@link System#nanoTime()}.
1044		*/
1045	<	long millisElapsedSince(long startNanoTime) {
1045	>	static long millisElapsedSince(long startNanoTime) {
1046		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1047		}
1048
1049	+	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1050	+	//         long startTime = System.nanoTime();
1051	+	//         try {
1052	+	//             r.run();
1053	+	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1054	+	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1055	+	//             throw new AssertionFailedError("did not return promptly");
1056	+	//     }
1057	+
1058	+	//     void assertTerminatesPromptly(Runnable r) {
1059	+	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1060	+	//     }
1061	+
1062	+	/**
1063	+	* Checks that timed f.get() returns the expected value, and does not
1064	+	* wait for the timeout to elapse before returning.
1065	+	*/
1066	+	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1067	+	long startTime = System.nanoTime();
1068	+	try {
1069	+	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1070	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
1071	+	if (millisElapsedSince(startTime) > timeoutMillis/2)
1072	+	throw new AssertionFailedError("timed get did not return promptly");
1073	+	}
1074	+
1075	+	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1076	+	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1077	+	}
1078	+
1079		/**
1080		* Returns a new started daemon Thread running the given runnable.
1081		*/
#	Line 768 | Line 1094 | public class JSR166TestCase extends Test
1094		void awaitTermination(Thread t, long timeoutMillis) {
1095		try {
1096		t.join(timeoutMillis);
1097	<	} catch (InterruptedException ie) {
1098	<	threadUnexpectedException(ie);
1097	>	} catch (InterruptedException fail) {
1098	>	threadUnexpectedException(fail);
1099		} finally {
1100		if (t.getState() != Thread.State.TERMINATED) {
1101		t.interrupt();
#	Line 795 | Line 1121 | public class JSR166TestCase extends Test
1121		public final void run() {
1122		try {
1123		realRun();
1124	<	} catch (Throwable t) {
1125	<	threadUnexpectedException(t);
1124	>	} catch (Throwable fail) {
1125	>	threadUnexpectedException(fail);
1126		}
1127		}
1128		}
#	Line 850 | Line 1176 | public class JSR166TestCase extends Test
1176		threadShouldThrow("InterruptedException");
1177		} catch (InterruptedException success) {
1178		threadAssertFalse(Thread.interrupted());
1179	<	} catch (Throwable t) {
1180	<	threadUnexpectedException(t);
1179	>	} catch (Throwable fail) {
1180	>	threadUnexpectedException(fail);
1181		}
1182		}
1183		}
#	Line 862 | Line 1188 | public class JSR166TestCase extends Test
1188		public final T call() {
1189		try {
1190		return realCall();
1191	<	} catch (Throwable t) {
1192	<	threadUnexpectedException(t);
1191	>	} catch (Throwable fail) {
1192	>	threadUnexpectedException(fail);
1193		return null;
1194		}
1195		}
#	Line 880 | Line 1206 | public class JSR166TestCase extends Test
1206		return result;
1207		} catch (InterruptedException success) {
1208		threadAssertFalse(Thread.interrupted());
1209	<	} catch (Throwable t) {
1210	<	threadUnexpectedException(t);
1209	>	} catch (Throwable fail) {
1210	>	threadUnexpectedException(fail);
1211		}
1212		return null;
1213		}
#	Line 898 | Line 1224 | public class JSR166TestCase extends Test
1224		public static final String TEST_STRING = "a test string";
1225
1226		public static class StringTask implements Callable<String> {
1227	<	public String call() { return TEST_STRING; }
1227	>	final String value;
1228	>	public StringTask() { this(TEST_STRING); }
1229	>	public StringTask(String value) { this.value = value; }
1230	>	public String call() { return value; }
1231		}
1232
1233		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
#	Line 921 | Line 1250 | public class JSR166TestCase extends Test
1250		public void await(CountDownLatch latch) {
1251		try {
1252		assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1253	<	} catch (Throwable t) {
1254	<	threadUnexpectedException(t);
1253	>	} catch (Throwable fail) {
1254	>	threadUnexpectedException(fail);
1255		}
1256		}
1257
1258		public void await(Semaphore semaphore) {
1259		try {
1260		assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1261	<	} catch (Throwable t) {
1262	<	threadUnexpectedException(t);
1261	>	} catch (Throwable fail) {
1262	>	threadUnexpectedException(fail);
1263		}
1264		}
1265
#	Line 1121 | Line 1450 | public class JSR166TestCase extends Test
1450		public abstract class CheckedRecursiveAction extends RecursiveAction {
1451		protected abstract void realCompute() throws Throwable;
1452
1453	<	public final void compute() {
1453	>	@Override protected final void compute() {
1454		try {
1455		realCompute();
1456	<	} catch (Throwable t) {
1457	<	threadUnexpectedException(t);
1456	>	} catch (Throwable fail) {
1457	>	threadUnexpectedException(fail);
1458		}
1459		}
1460		}
#	Line 1136 | Line 1465 | public class JSR166TestCase extends Test
1465		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1466		protected abstract T realCompute() throws Throwable;
1467
1468	<	public final T compute() {
1468	>	@Override protected final T compute() {
1469		try {
1470		return realCompute();
1471	<	} catch (Throwable t) {
1472	<	threadUnexpectedException(t);
1471	>	} catch (Throwable fail) {
1472	>	threadUnexpectedException(fail);
1473		return null;
1474		}
1475		}
#	Line 1164 | Line 1493 | public class JSR166TestCase extends Test
1493		public int await() {
1494		try {
1495		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1496	<	} catch (TimeoutException e) {
1496	>	} catch (TimeoutException timedOut) {
1497		throw new AssertionFailedError("timed out");
1498	<	} catch (Exception e) {
1498	>	} catch (Exception fail) {
1499		AssertionFailedError afe =
1500	<	new AssertionFailedError("Unexpected exception: " + e);
1501	<	afe.initCause(e);
1500	>	new AssertionFailedError("Unexpected exception: " + fail);
1501	>	afe.initCause(fail);
1502		throw afe;
1503		}
1504		}
#	Line 1197 | Line 1526 | public class JSR166TestCase extends Test
1526		q.remove();
1527		shouldThrow();
1528		} catch (NoSuchElementException success) {}
1529	<	} catch (InterruptedException ie) {
1201	<	threadUnexpectedException(ie);
1202	<	}
1529	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1530		}
1531
1532	<	@SuppressWarnings("unchecked")
1533	<	<T> T serialClone(T o) {
1532	>	void assertSerialEquals(Object x, Object y) {
1533	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1534	>	}
1535	>
1536	>	void assertNotSerialEquals(Object x, Object y) {
1537	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1538	>	}
1539	>
1540	>	byte[] serialBytes(Object o) {
1541		try {
1542		ByteArrayOutputStream bos = new ByteArrayOutputStream();
1543		ObjectOutputStream oos = new ObjectOutputStream(bos);
1544		oos.writeObject(o);
1545		oos.flush();
1546		oos.close();
1547	+	return bos.toByteArray();
1548	+	} catch (Throwable fail) {
1549	+	threadUnexpectedException(fail);
1550	+	return new byte[0];
1551	+	}
1552	+	}
1553	+
1554	+	@SuppressWarnings("unchecked")
1555	+	<T> T serialClone(T o) {
1556	+	try {
1557		ObjectInputStream ois = new ObjectInputStream
1558	<	(new ByteArrayInputStream(bos.toByteArray()));
1558	>	(new ByteArrayInputStream(serialBytes(o)));
1559		T clone = (T) ois.readObject();
1560		assertSame(o.getClass(), clone.getClass());
1561		return clone;
1562	<	} catch (Throwable t) {
1563	<	threadUnexpectedException(t);
1562	>	} catch (Throwable fail) {
1563	>	threadUnexpectedException(fail);
1564		return null;
1565		}
1566		}
1567	+
1568	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1569	+	Runnable... throwingActions) {
1570	+	for (Runnable throwingAction : throwingActions) {
1571	+	boolean threw = false;
1572	+	try { throwingAction.run(); }
1573	+	catch (Throwable t) {
1574	+	threw = true;
1575	+	if (!expectedExceptionClass.isInstance(t)) {
1576	+	AssertionFailedError afe =
1577	+	new AssertionFailedError
1578	+	("Expected " + expectedExceptionClass.getName() +
1579	+	", got " + t.getClass().getName());
1580	+	afe.initCause(t);
1581	+	threadUnexpectedException(afe);
1582	+	}
1583	+	}
1584	+	if (!threw)
1585	+	shouldThrow(expectedExceptionClass.getName());
1586	+	}
1587	+	}
1588	+
1589	+	public void assertIteratorExhausted(Iterator<?> it) {
1590	+	try {
1591	+	it.next();
1592	+	shouldThrow();
1593	+	} catch (NoSuchElementException success) {}
1594	+	assertFalse(it.hasNext());
1595	+	}
1596		}

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