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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.52 by jsr166, Mon Sep 13 23:19:31 2010 UTC vs.
Revision 1.108 by jsr166, Mon Jun 3 18:20:05 2013 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.*;
10	>	import java.io.ByteArrayInputStream;
11	>	import java.io.ByteArrayOutputStream;
12	>	import java.io.ObjectInputStream;
13	>	import java.io.ObjectOutputStream;
14	>	import java.lang.management.ManagementFactory;
15	>	import java.lang.management.ThreadInfo;
16	>	import java.lang.reflect.Method;
17	>	import java.util.ArrayList;
18	>	import java.util.Arrays;
19	>	import java.util.Date;
20	>	import java.util.Enumeration;
21	>	import java.util.List;
22	>	import java.util.NoSuchElementException;
23	>	import java.util.PropertyPermission;
24		import java.util.concurrent.*;
25	+	import java.util.concurrent.atomic.AtomicBoolean;
26	+	import java.util.concurrent.atomic.AtomicReference;
27		import static java.util.concurrent.TimeUnit.MILLISECONDS;
28	<	import java.io.*;
29	<	import java.security.*;
28	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
29	>	import java.security.CodeSource;
30	>	import java.security.Permission;
31	>	import java.security.PermissionCollection;
32	>	import java.security.Permissions;
33	>	import java.security.Policy;
34	>	import java.security.ProtectionDomain;
35	>	import java.security.SecurityPermission;
36
37		/**
38		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 54 | Line 75 | import java.security.*;
75		*
76		* </ol>
77		*
78	<	* <p> <b>Other notes</b>
78	>	* <p><b>Other notes</b>
79		* <ul>
80		*
81		* <li> Usually, there is one testcase method per JSR166 method
#	Line 90 | Line 111 | public class JSR166TestCase extends Test
111		private static final boolean useSecurityManager =
112		Boolean.getBoolean("jsr166.useSecurityManager");
113
114	+	protected static final boolean expensiveTests =
115	+	Boolean.getBoolean("jsr166.expensiveTests");
116	+
117	+	/**
118	+	* If true, report on stdout all "slow" tests, that is, ones that
119	+	* take more than profileThreshold milliseconds to execute.
120	+	*/
121	+	private static final boolean profileTests =
122	+	Boolean.getBoolean("jsr166.profileTests");
123	+
124	+	/**
125	+	* The number of milliseconds that tests are permitted for
126	+	* execution without being reported, when profileTests is set.
127	+	*/
128	+	private static final long profileThreshold =
129	+	Long.getLong("jsr166.profileThreshold", 100);
130	+
131	+	/**
132	+	* The number of repetitions per test (for tickling rare bugs).
133	+	*/
134	+	private static final int runsPerTest =
135	+	Integer.getInteger("jsr166.runsPerTest", 1);
136	+
137	+	protected void runTest() throws Throwable {
138	+	for (int i = 0; i < runsPerTest; i++) {
139	+	if (profileTests)
140	+	runTestProfiled();
141	+	else
142	+	super.runTest();
143	+	}
144	+	}
145	+
146	+	protected void runTestProfiled() throws Throwable {
147	+	long t0 = System.nanoTime();
148	+	try {
149	+	super.runTest();
150	+	} finally {
151	+	long elapsedMillis =
152	+	(System.nanoTime() - t0) / (1000L * 1000L);
153	+	if (elapsedMillis >= profileThreshold)
154	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
155	+	}
156	+	}
157	+
158		/**
159	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
159	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
160	>	* Optional command line arg provides the number of iterations to
161	>	* repeat running the tests.
162		*/
163		public static void main(String[] args) {
164		if (useSecurityManager) {
#	Line 99 | Line 166 | public class JSR166TestCase extends Test
166		Policy.setPolicy(permissivePolicy());
167		System.setSecurityManager(new SecurityManager());
168		}
169	<	int iters = 1;
170	<	if (args.length > 0)
104	<	iters = Integer.parseInt(args[0]);
169	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
170	>
171		Test s = suite();
172		for (int i = 0; i < iters; ++i) {
173		junit.textui.TestRunner.run(s);
#	Line 111 | Line 177 | public class JSR166TestCase extends Test
177		System.exit(0);
178		}
179
180	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
181	+	TestSuite suite = new TestSuite();
182	+	for (Object suiteOrClass : suiteOrClasses) {
183	+	if (suiteOrClass instanceof TestSuite)
184	+	suite.addTest((TestSuite) suiteOrClass);
185	+	else if (suiteOrClass instanceof Class)
186	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
187	+	else
188	+	throw new ClassCastException("not a test suite or class");
189	+	}
190	+	return suite;
191	+	}
192	+
193	+	public static void addNamedTestClasses(TestSuite suite,
194	+	String... testClassNames) {
195	+	for (String testClassName : testClassNames) {
196	+	try {
197	+	Class<?> testClass = Class.forName(testClassName);
198	+	Method m = testClass.getDeclaredMethod("suite",
199	+	new Class<?>[0]);
200	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
201	+	} catch (Exception e) {
202	+	throw new Error("Missing test class", e);
203	+	}
204	+	}
205	+	}
206	+
207	+	public static final double JAVA_CLASS_VERSION;
208	+	static {
209	+	try {
210	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
211	+	new java.security.PrivilegedAction<Double>() {
212	+	public Double run() {
213	+	return Double.valueOf(System.getProperty("java.class.version"));}});
214	+	} catch (Throwable t) {
215	+	throw new Error(t);
216	+	}
217	+	}
218	+
219	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
220	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
221	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
222	+
223		/**
224	<	* Collects all JSR166 unit tests as one suite
224	>	* Collects all JSR166 unit tests as one suite.
225		*/
226		public static Test suite() {
227	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
228	<
229	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
230	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
231	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
232	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
233	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
234	<	suite.addTest(new TestSuite(PhaserTest.class));
235	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
236	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
237	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
238	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
239	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
240	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
241	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
242	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
243	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
244	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
245	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
246	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
247	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
248	<	suite.addTest(new TestSuite(AtomicLongTest.class));
249	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
250	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
251	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
252	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
253	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
254	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
255	<	suite.addTest(new TestSuite(ConcurrentLinkedDequeTest.class));
256	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
257	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
258	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
259	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
260	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
261	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
262	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
263	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
264	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
265	<	suite.addTest(new TestSuite(DelayQueueTest.class));
266	<	suite.addTest(new TestSuite(EntryTest.class));
267	<	suite.addTest(new TestSuite(ExchangerTest.class));
268	<	suite.addTest(new TestSuite(ExecutorsTest.class));
269	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
270	<	suite.addTest(new TestSuite(FutureTaskTest.class));
271	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
272	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
273	<	suite.addTest(new TestSuite(LinkedListTest.class));
274	<	suite.addTest(new TestSuite(LockSupportTest.class));
275	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
276	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
277	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
278	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
279	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
280	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
281	<	suite.addTest(new TestSuite(SemaphoreTest.class));
282	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
283	<	suite.addTest(new TestSuite(SystemTest.class));
284	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
285	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
286	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
287	<	suite.addTest(new TestSuite(ThreadTest.class));
288	<	suite.addTest(new TestSuite(TimeUnitTest.class));
289	<	suite.addTest(new TestSuite(TreeMapTest.class));
290	<	suite.addTest(new TestSuite(TreeSetTest.class));
291	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
292	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
227	>	// Java7+ test classes
228	>	TestSuite suite = newTestSuite(
229	>	ForkJoinPoolTest.suite(),
230	>	ForkJoinTaskTest.suite(),
231	>	RecursiveActionTest.suite(),
232	>	RecursiveTaskTest.suite(),
233	>	LinkedTransferQueueTest.suite(),
234	>	PhaserTest.suite(),
235	>	ThreadLocalRandomTest.suite(),
236	>	AbstractExecutorServiceTest.suite(),
237	>	AbstractQueueTest.suite(),
238	>	AbstractQueuedSynchronizerTest.suite(),
239	>	AbstractQueuedLongSynchronizerTest.suite(),
240	>	ArrayBlockingQueueTest.suite(),
241	>	ArrayDequeTest.suite(),
242	>	AtomicBooleanTest.suite(),
243	>	AtomicIntegerArrayTest.suite(),
244	>	AtomicIntegerFieldUpdaterTest.suite(),
245	>	AtomicIntegerTest.suite(),
246	>	AtomicLongArrayTest.suite(),
247	>	AtomicLongFieldUpdaterTest.suite(),
248	>	AtomicLongTest.suite(),
249	>	AtomicMarkableReferenceTest.suite(),
250	>	AtomicReferenceArrayTest.suite(),
251	>	AtomicReferenceFieldUpdaterTest.suite(),
252	>	AtomicReferenceTest.suite(),
253	>	AtomicStampedReferenceTest.suite(),
254	>	ConcurrentHashMapTest.suite(),
255	>	ConcurrentLinkedDequeTest.suite(),
256	>	ConcurrentLinkedQueueTest.suite(),
257	>	ConcurrentSkipListMapTest.suite(),
258	>	ConcurrentSkipListSubMapTest.suite(),
259	>	ConcurrentSkipListSetTest.suite(),
260	>	ConcurrentSkipListSubSetTest.suite(),
261	>	CopyOnWriteArrayListTest.suite(),
262	>	CopyOnWriteArraySetTest.suite(),
263	>	CountDownLatchTest.suite(),
264	>	CyclicBarrierTest.suite(),
265	>	DelayQueueTest.suite(),
266	>	EntryTest.suite(),
267	>	ExchangerTest.suite(),
268	>	ExecutorsTest.suite(),
269	>	ExecutorCompletionServiceTest.suite(),
270	>	FutureTaskTest.suite(),
271	>	LinkedBlockingDequeTest.suite(),
272	>	LinkedBlockingQueueTest.suite(),
273	>	LinkedListTest.suite(),
274	>	LockSupportTest.suite(),
275	>	PriorityBlockingQueueTest.suite(),
276	>	PriorityQueueTest.suite(),
277	>	ReentrantLockTest.suite(),
278	>	ReentrantReadWriteLockTest.suite(),
279	>	ScheduledExecutorTest.suite(),
280	>	ScheduledExecutorSubclassTest.suite(),
281	>	SemaphoreTest.suite(),
282	>	SynchronousQueueTest.suite(),
283	>	SystemTest.suite(),
284	>	ThreadLocalTest.suite(),
285	>	ThreadPoolExecutorTest.suite(),
286	>	ThreadPoolExecutorSubclassTest.suite(),
287	>	ThreadTest.suite(),
288	>	TimeUnitTest.suite(),
289	>	TreeMapTest.suite(),
290	>	TreeSetTest.suite(),
291	>	TreeSubMapTest.suite(),
292	>	TreeSubSetTest.suite());
293	>
294	>	// Java8+ test classes
295	>	if (atLeastJava8()) {
296	>	String[] java8TestClassNames = {
297	>	"CompletableFutureTest",
298	>	"ConcurrentHashMap8Test",
299	>	"CountedCompleterTest",
300	>	"DoubleAccumulatorTest",
301	>	"DoubleAdderTest",
302	>	"ForkJoinPool8Test",
303	>	"LongAccumulatorTest",
304	>	"LongAdderTest",
305	>	"StampedLockTest",
306	>	};
307	>	addNamedTestClasses(suite, java8TestClassNames);
308	>	}
309
310		return suite;
311		}
#	Line 200 | Line 325 | public class JSR166TestCase extends Test
325		return 50;
326		}
327
203	–
328		/**
329		* Sets delays as multiples of SHORT_DELAY.
330		*/
331		protected void setDelays() {
332		SHORT_DELAY_MS = getShortDelay();
333	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
333	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
334		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
335	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
335	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
336	>	}
337	>
338	>	/**
339	>	* Returns a timeout in milliseconds to be used in tests that
340	>	* verify that operations block or time out.
341	>	*/
342	>	long timeoutMillis() {
343	>	return SHORT_DELAY_MS / 4;
344	>	}
345	>
346	>	/**
347	>	* Returns a new Date instance representing a time delayMillis
348	>	* milliseconds in the future.
349	>	*/
350	>	Date delayedDate(long delayMillis) {
351	>	return new Date(System.currentTimeMillis() + delayMillis);
352		}
353
354		/**
355	<	* Flag set true if any threadAssert methods fail
355	>	* The first exception encountered if any threadAssertXXX method fails.
356		*/
357	<	volatile boolean threadFailed;
357	>	private final AtomicReference<Throwable> threadFailure
358	>	= new AtomicReference<Throwable>(null);
359
360		/**
361	<	* Initializes test to indicate that no thread assertions have failed
361	>	* Records an exception so that it can be rethrown later in the test
362	>	* harness thread, triggering a test case failure.  Only the first
363	>	* failure is recorded; subsequent calls to this method from within
364	>	* the same test have no effect.
365		*/
366	+	public void threadRecordFailure(Throwable t) {
367	+	threadFailure.compareAndSet(null, t);
368	+	}
369	+
370		public void setUp() {
371		setDelays();
224	–	threadFailed = false;
372		}
373
374		/**
375	<	* Triggers test case failure if any thread assertions have failed
375	>	* Extra checks that get done for all test cases.
376	>	*
377	>	* Triggers test case failure if any thread assertions have failed,
378	>	* by rethrowing, in the test harness thread, any exception recorded
379	>	* earlier by threadRecordFailure.
380	>	*
381	>	* Triggers test case failure if interrupt status is set in the main thread.
382	>	*/
383	>	public void tearDown() throws Exception {
384	>	Throwable t = threadFailure.getAndSet(null);
385	>	if (t != null) {
386	>	if (t instanceof Error)
387	>	throw (Error) t;
388	>	else if (t instanceof RuntimeException)
389	>	throw (RuntimeException) t;
390	>	else if (t instanceof Exception)
391	>	throw (Exception) t;
392	>	else {
393	>	AssertionFailedError afe =
394	>	new AssertionFailedError(t.toString());
395	>	afe.initCause(t);
396	>	throw afe;
397	>	}
398	>	}
399	>
400	>	if (Thread.interrupted())
401	>	throw new AssertionFailedError("interrupt status set in main thread");
402	>
403	>	checkForkJoinPoolThreadLeaks();
404	>	}
405	>
406	>	/**
407	>	* Find missing try { ... } finally { joinPool(e); }
408		*/
409	<	public void tearDown() {
410	<	assertFalse(threadFailed);
409	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
410	>	Thread[] survivors = new Thread[5];
411	>	int count = Thread.enumerate(survivors);
412	>	for (int i = 0; i < count; i++) {
413	>	Thread thread = survivors[i];
414	>	String name = thread.getName();
415	>	if (name.startsWith("ForkJoinPool-")) {
416	>	// give thread some time to terminate
417	>	thread.join(LONG_DELAY_MS);
418	>	if (!thread.isAlive()) continue;
419	>	thread.stop();
420	>	throw new AssertionFailedError
421	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
422	>	toString(), name));
423	>	}
424	>	}
425		}
426
427		/**
428	<	* Fail, also setting status to indicate current testcase should fail
428	>	* Just like fail(reason), but additionally recording (using
429	>	* threadRecordFailure) any AssertionFailedError thrown, so that
430	>	* the current testcase will fail.
431		*/
432		public void threadFail(String reason) {
433	<	threadFailed = true;
434	<	fail(reason);
433	>	try {
434	>	fail(reason);
435	>	} catch (AssertionFailedError t) {
436	>	threadRecordFailure(t);
437	>	fail(reason);
438	>	}
439		}
440
441		/**
442	<	* If expression not true, set status to indicate current testcase
443	<	* should fail
442	>	* Just like assertTrue(b), but additionally recording (using
443	>	* threadRecordFailure) any AssertionFailedError thrown, so that
444	>	* the current testcase will fail.
445		*/
446		public void threadAssertTrue(boolean b) {
447	<	if (!b) {
248	<	threadFailed = true;
447	>	try {
448		assertTrue(b);
449	+	} catch (AssertionFailedError t) {
450	+	threadRecordFailure(t);
451	+	throw t;
452		}
453		}
454
455		/**
456	<	* If expression not false, set status to indicate current testcase
457	<	* should fail
456	>	* Just like assertFalse(b), but additionally recording (using
457	>	* threadRecordFailure) any AssertionFailedError thrown, so that
458	>	* the current testcase will fail.
459		*/
460		public void threadAssertFalse(boolean b) {
461	<	if (b) {
259	<	threadFailed = true;
461	>	try {
462		assertFalse(b);
463	+	} catch (AssertionFailedError t) {
464	+	threadRecordFailure(t);
465	+	throw t;
466		}
467		}
468
469		/**
470	<	* If argument not null, set status to indicate current testcase
471	<	* should fail
470	>	* Just like assertNull(x), but additionally recording (using
471	>	* threadRecordFailure) any AssertionFailedError thrown, so that
472	>	* the current testcase will fail.
473		*/
474		public void threadAssertNull(Object x) {
475	<	if (x != null) {
270	<	threadFailed = true;
475	>	try {
476		assertNull(x);
477	+	} catch (AssertionFailedError t) {
478	+	threadRecordFailure(t);
479	+	throw t;
480		}
481		}
482
483		/**
484	<	* If arguments not equal, set status to indicate current testcase
485	<	* should fail
484	>	* Just like assertEquals(x, y), but additionally recording (using
485	>	* threadRecordFailure) any AssertionFailedError thrown, so that
486	>	* the current testcase will fail.
487		*/
488		public void threadAssertEquals(long x, long y) {
489	<	if (x != y) {
281	<	threadFailed = true;
489	>	try {
490		assertEquals(x, y);
491	+	} catch (AssertionFailedError t) {
492	+	threadRecordFailure(t);
493	+	throw t;
494		}
495		}
496
497		/**
498	<	* If arguments not equal, set status to indicate current testcase
499	<	* should fail
498	>	* Just like assertEquals(x, y), but additionally recording (using
499	>	* threadRecordFailure) any AssertionFailedError thrown, so that
500	>	* the current testcase will fail.
501		*/
502		public void threadAssertEquals(Object x, Object y) {
503	<	if (x != y && (x == null || !x.equals(y))) {
292	<	threadFailed = true;
503	>	try {
504		assertEquals(x, y);
505	+	} catch (AssertionFailedError t) {
506	+	threadRecordFailure(t);
507	+	throw t;
508	+	} catch (Throwable t) {
509	+	threadUnexpectedException(t);
510		}
511		}
512
513		/**
514	<	* If arguments not identical, set status to indicate current testcase
515	<	* should fail
514	>	* Just like assertSame(x, y), but additionally recording (using
515	>	* threadRecordFailure) any AssertionFailedError thrown, so that
516	>	* the current testcase will fail.
517		*/
518		public void threadAssertSame(Object x, Object y) {
519	<	if (x != y) {
303	<	threadFailed = true;
519	>	try {
520		assertSame(x, y);
521	+	} catch (AssertionFailedError t) {
522	+	threadRecordFailure(t);
523	+	throw t;
524		}
525		}
526
527		/**
528	<	* threadFail with message "should throw exception"
528	>	* Calls threadFail with message "should throw exception".
529		*/
530		public void threadShouldThrow() {
531	<	threadFailed = true;
313	<	fail("should throw exception");
531	>	threadFail("should throw exception");
532		}
533
534		/**
535	<	* threadFail with message "should throw" + exceptionName
535	>	* Calls threadFail with message "should throw" + exceptionName.
536		*/
537		public void threadShouldThrow(String exceptionName) {
538	<	threadFailed = true;
321	<	fail("should throw " + exceptionName);
538	>	threadFail("should throw " + exceptionName);
539		}
540
541		/**
542	<	* threadFail with message "Unexpected exception"
542	>	* Records the given exception using {@link #threadRecordFailure},
543	>	* then rethrows the exception, wrapping it in an
544	>	* AssertionFailedError if necessary.
545		*/
546	<	public void threadUnexpectedException() {
547	<	threadFailed = true;
548	<	fail("Unexpected exception");
546	>	public void threadUnexpectedException(Throwable t) {
547	>	threadRecordFailure(t);
548	>	t.printStackTrace();
549	>	if (t instanceof RuntimeException)
550	>	throw (RuntimeException) t;
551	>	else if (t instanceof Error)
552	>	throw (Error) t;
553	>	else {
554	>	AssertionFailedError afe =
555	>	new AssertionFailedError("unexpected exception: " + t);
556	>	afe.initCause(t);
557	>	throw afe;
558	>	}
559		}
560
561		/**
562	<	* threadFail with message "Unexpected exception", with argument
562	>	* Delays, via Thread.sleep, for the given millisecond delay, but
563	>	* if the sleep is shorter than specified, may re-sleep or yield
564	>	* until time elapses.
565		*/
566	<	public void threadUnexpectedException(Throwable ex) {
567	<	threadFailed = true;
568	<	ex.printStackTrace();
569	<	fail("Unexpected exception: " + ex);
566	>	static void delay(long millis) throws InterruptedException {
567	>	long startTime = System.nanoTime();
568	>	long ns = millis * 1000 * 1000;
569	>	for (;;) {
570	>	if (millis > 0L)
571	>	Thread.sleep(millis);
572	>	else // too short to sleep
573	>	Thread.yield();
574	>	long d = ns - (System.nanoTime() - startTime);
575	>	if (d > 0L)
576	>	millis = d / (1000 * 1000);
577	>	else
578	>	break;
579	>	}
580		}
581
582		/**
583	<	* Wait out termination of a thread pool or fail doing so
583	>	* Waits out termination of a thread pool or fails doing so.
584		*/
585	<	public void joinPool(ExecutorService exec) {
585	>	void joinPool(ExecutorService exec) {
586		try {
587		exec.shutdown();
588	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
588	>	assertTrue("ExecutorService did not terminate in a timely manner",
589	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
590		} catch (SecurityException ok) {
591		// Allowed in case test doesn't have privs
592		} catch (InterruptedException ie) {
#	Line 352 | Line 594 | public class JSR166TestCase extends Test
594		}
595		}
596
597	+	/**
598	+	* A debugging tool to print all stack traces, as jstack does.
599	+	*/
600	+	static void printAllStackTraces() {
601	+	for (ThreadInfo info :
602	+	ManagementFactory.getThreadMXBean()
603	+	.dumpAllThreads(true, true))
604	+	System.err.print(info);
605	+	}
606
607		/**
608	<	* fail with message "should throw exception"
608	>	* Checks that thread does not terminate within the default
609	>	* millisecond delay of {@code timeoutMillis()}.
610		*/
611	<	public void shouldThrow() {
612	<	fail("Should throw exception");
611	>	void assertThreadStaysAlive(Thread thread) {
612	>	assertThreadStaysAlive(thread, timeoutMillis());
613		}
614
615		/**
616	<	* fail with message "should throw " + exceptionName
616	>	* Checks that thread does not terminate within the given millisecond delay.
617		*/
618	<	public void shouldThrow(String exceptionName) {
619	<	fail("Should throw " + exceptionName);
618	>	void assertThreadStaysAlive(Thread thread, long millis) {
619	>	try {
620	>	// No need to optimize the failing case via Thread.join.
621	>	delay(millis);
622	>	assertTrue(thread.isAlive());
623	>	} catch (InterruptedException ie) {
624	>	fail("Unexpected InterruptedException");
625	>	}
626		}
627
628		/**
629	<	* fail with message "Unexpected exception"
629	>	* Checks that the threads do not terminate within the default
630	>	* millisecond delay of {@code timeoutMillis()}.
631		*/
632	<	public void unexpectedException() {
633	<	fail("Unexpected exception");
632	>	void assertThreadsStayAlive(Thread... threads) {
633	>	assertThreadsStayAlive(timeoutMillis(), threads);
634		}
635
636		/**
637	<	* fail with message "Unexpected exception", with argument
637	>	* Checks that the threads do not terminate within the given millisecond delay.
638		*/
639	<	public void unexpectedException(Throwable ex) {
640	<	ex.printStackTrace();
641	<	fail("Unexpected exception: " + ex);
639	>	void assertThreadsStayAlive(long millis, Thread... threads) {
640	>	try {
641	>	// No need to optimize the failing case via Thread.join.
642	>	delay(millis);
643	>	for (Thread thread : threads)
644	>	assertTrue(thread.isAlive());
645	>	} catch (InterruptedException ie) {
646	>	fail("Unexpected InterruptedException");
647	>	}
648		}
649
650	+	/**
651	+	* Checks that future.get times out, with the default timeout of
652	+	* {@code timeoutMillis()}.
653	+	*/
654	+	void assertFutureTimesOut(Future future) {
655	+	assertFutureTimesOut(future, timeoutMillis());
656	+	}
657	+
658	+	/**
659	+	* Checks that future.get times out, with the given millisecond timeout.
660	+	*/
661	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
662	+	long startTime = System.nanoTime();
663	+	try {
664	+	future.get(timeoutMillis, MILLISECONDS);
665	+	shouldThrow();
666	+	} catch (TimeoutException success) {
667	+	} catch (Exception e) {
668	+	threadUnexpectedException(e);
669	+	} finally { future.cancel(true); }
670	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
671	+	}
672	+
673	+	/**
674	+	* Fails with message "should throw exception".
675	+	*/
676	+	public void shouldThrow() {
677	+	fail("Should throw exception");
678	+	}
679	+
680	+	/**
681	+	* Fails with message "should throw " + exceptionName.
682	+	*/
683	+	public void shouldThrow(String exceptionName) {
684	+	fail("Should throw " + exceptionName);
685	+	}
686
687		/**
688		* The number of elements to place in collections, arrays, etc.
#	Line 420 | Line 721 | public class JSR166TestCase extends Test
721		SecurityManager sm = System.getSecurityManager();
722		if (sm == null) {
723		r.run();
724	+	}
725	+	runWithSecurityManagerWithPermissions(r, permissions);
726	+	}
727	+
728	+	/**
729	+	* Runs Runnable r with a security policy that permits precisely
730	+	* the specified permissions.  If there is no current security
731	+	* manager, a temporary one is set for the duration of the
732	+	* Runnable.  We require that any security manager permit
733	+	* getPolicy/setPolicy.
734	+	*/
735	+	public void runWithSecurityManagerWithPermissions(Runnable r,
736	+	Permission... permissions) {
737	+	SecurityManager sm = System.getSecurityManager();
738	+	if (sm == null) {
739		Policy savedPolicy = Policy.getPolicy();
740		try {
741		Policy.setPolicy(permissivePolicy());
742		System.setSecurityManager(new SecurityManager());
743	<	runWithPermissions(r, permissions);
743	>	runWithSecurityManagerWithPermissions(r, permissions);
744		} finally {
745		System.setSecurityManager(null);
746		Policy.setPolicy(savedPolicy);
#	Line 472 | Line 788 | public class JSR166TestCase extends Test
788		return perms.implies(p);
789		}
790		public void refresh() {}
791	+	public String toString() {
792	+	List<Permission> ps = new ArrayList<Permission>();
793	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
794	+	ps.add(e.nextElement());
795	+	return "AdjustablePolicy with permissions " + ps;
796	+	}
797		}
798
799		/**
#	Line 494 | Line 816 | public class JSR166TestCase extends Test
816		}
817
818		/**
819	<	* Sleep until the timeout has elapsed, or interrupted.
820	<	* Does <em>NOT</em> throw InterruptedException.
819	>	* Sleeps until the given time has elapsed.
820	>	* Throws AssertionFailedError if interrupted.
821		*/
822	<	void sleepTillInterrupted(long timeoutMillis) {
822	>	void sleep(long millis) {
823		try {
824	<	Thread.sleep(timeoutMillis);
825	<	} catch (InterruptedException wakeup) {}
824	>	delay(millis);
825	>	} catch (InterruptedException ie) {
826	>	AssertionFailedError afe =
827	>	new AssertionFailedError("Unexpected InterruptedException");
828	>	afe.initCause(ie);
829	>	throw afe;
830	>	}
831	>	}
832	>
833	>	/**
834	>	* Spin-waits up to the specified number of milliseconds for the given
835	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
836	>	*/
837	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
838	>	long startTime = System.nanoTime();
839	>	for (;;) {
840	>	Thread.State s = thread.getState();
841	>	if (s == Thread.State.BLOCKED ||
842	>	s == Thread.State.WAITING ||
843	>	s == Thread.State.TIMED_WAITING)
844	>	return;
845	>	else if (s == Thread.State.TERMINATED)
846	>	fail("Unexpected thread termination");
847	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
848	>	threadAssertTrue(thread.isAlive());
849	>	return;
850	>	}
851	>	Thread.yield();
852	>	}
853	>	}
854	>
855	>	/**
856	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
857	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
858	>	*/
859	>	void waitForThreadToEnterWaitState(Thread thread) {
860	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
861	>	}
862	>
863	>	/**
864	>	* Returns the number of milliseconds since time given by
865	>	* startNanoTime, which must have been previously returned from a
866	>	* call to {@link System.nanoTime()}.
867	>	*/
868	>	long millisElapsedSince(long startNanoTime) {
869	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
870		}
871
872		/**
873	<	* Returns a new started Thread running the given runnable.
873	>	* Returns a new started daemon Thread running the given runnable.
874		*/
875		Thread newStartedThread(Runnable runnable) {
876		Thread t = new Thread(runnable);
877	+	t.setDaemon(true);
878		t.start();
879		return t;
880		}
881
882	+	/**
883	+	* Waits for the specified time (in milliseconds) for the thread
884	+	* to terminate (using {@link Thread#join(long)}), else interrupts
885	+	* the thread (in the hope that it may terminate later) and fails.
886	+	*/
887	+	void awaitTermination(Thread t, long timeoutMillis) {
888	+	try {
889	+	t.join(timeoutMillis);
890	+	} catch (InterruptedException ie) {
891	+	threadUnexpectedException(ie);
892	+	} finally {
893	+	if (t.getState() != Thread.State.TERMINATED) {
894	+	t.interrupt();
895	+	fail("Test timed out");
896	+	}
897	+	}
898	+	}
899	+
900	+	/**
901	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
902	+	* terminate (using {@link Thread#join(long)}), else interrupts
903	+	* the thread (in the hope that it may terminate later) and fails.
904	+	*/
905	+	void awaitTermination(Thread t) {
906	+	awaitTermination(t, LONG_DELAY_MS);
907	+	}
908	+
909		// Some convenient Runnable classes
910
911		public abstract class CheckedRunnable implements Runnable {
#	Line 574 | Line 968 | public class JSR166TestCase extends Test
968		realRun();
969		threadShouldThrow("InterruptedException");
970		} catch (InterruptedException success) {
971	+	threadAssertFalse(Thread.interrupted());
972		} catch (Throwable t) {
973		threadUnexpectedException(t);
974		}
#	Line 588 | Line 983 | public class JSR166TestCase extends Test
983		return realCall();
984		} catch (Throwable t) {
985		threadUnexpectedException(t);
986	+	return null;
987		}
592	–	return null;
988		}
989		}
990
991	<	public abstract class CheckedInterruptedCallable<T> implements Callable<T> {
991	>	public abstract class CheckedInterruptedCallable<T>
992	>	implements Callable<T> {
993		protected abstract T realCall() throws Throwable;
994
995		public final T call() {
#	Line 602 | Line 998 | public class JSR166TestCase extends Test
998		threadShouldThrow("InterruptedException");
999		return result;
1000		} catch (InterruptedException success) {
1001	+	threadAssertFalse(Thread.interrupted());
1002		} catch (Throwable t) {
1003		threadUnexpectedException(t);
1004		}
#	Line 625 | Line 1022 | public class JSR166TestCase extends Test
1022
1023		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1024		return new CheckedCallable<String>() {
1025	<	public String realCall() {
1025	>	protected String realCall() {
1026		try {
1027		latch.await();
1028		} catch (InterruptedException quittingTime) {}
#	Line 633 | Line 1030 | public class JSR166TestCase extends Test
1030		}};
1031		}
1032
1033	+	public Runnable awaiter(final CountDownLatch latch) {
1034	+	return new CheckedRunnable() {
1035	+	public void realRun() throws InterruptedException {
1036	+	await(latch);
1037	+	}};
1038	+	}
1039	+
1040	+	public void await(CountDownLatch latch) {
1041	+	try {
1042	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1043	+	} catch (Throwable t) {
1044	+	threadUnexpectedException(t);
1045	+	}
1046	+	}
1047	+
1048	+	public void await(Semaphore semaphore) {
1049	+	try {
1050	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1051	+	} catch (Throwable t) {
1052	+	threadUnexpectedException(t);
1053	+	}
1054	+	}
1055	+
1056	+	//     /**
1057	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1058	+	//      */
1059	+	//     public void await(AtomicBoolean flag) {
1060	+	//         await(flag, LONG_DELAY_MS);
1061	+	//     }
1062	+
1063	+	//     /**
1064	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1065	+	//      */
1066	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1067	+	//         long startTime = System.nanoTime();
1068	+	//         while (!flag.get()) {
1069	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1070	+	//                 throw new AssertionFailedError("timed out");
1071	+	//             Thread.yield();
1072	+	//         }
1073	+	//     }
1074	+
1075		public static class NPETask implements Callable<String> {
1076		public String call() { throw new NullPointerException(); }
1077		}
#	Line 643 | Line 1082 | public class JSR166TestCase extends Test
1082
1083		public class ShortRunnable extends CheckedRunnable {
1084		protected void realRun() throws Throwable {
1085	<	Thread.sleep(SHORT_DELAY_MS);
1085	>	delay(SHORT_DELAY_MS);
1086		}
1087		}
1088
1089		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1090		protected void realRun() throws InterruptedException {
1091	<	Thread.sleep(SHORT_DELAY_MS);
1091	>	delay(SHORT_DELAY_MS);
1092		}
1093		}
1094
1095		public class SmallRunnable extends CheckedRunnable {
1096		protected void realRun() throws Throwable {
1097	<	Thread.sleep(SMALL_DELAY_MS);
1097	>	delay(SMALL_DELAY_MS);
1098		}
1099		}
1100
1101		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1102		protected void realRun() {
1103		try {
1104	<	Thread.sleep(SMALL_DELAY_MS);
1104	>	delay(SMALL_DELAY_MS);
1105		} catch (InterruptedException ok) {}
1106		}
1107		}
1108
1109		public class SmallCallable extends CheckedCallable {
1110		protected Object realCall() throws InterruptedException {
1111	<	Thread.sleep(SMALL_DELAY_MS);
1111	>	delay(SMALL_DELAY_MS);
1112		return Boolean.TRUE;
1113		}
1114		}
1115
677	–	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
678	–	protected void realRun() throws InterruptedException {
679	–	Thread.sleep(SMALL_DELAY_MS);
680	–	}
681	–	}
682	–
1116		public class MediumRunnable extends CheckedRunnable {
1117		protected void realRun() throws Throwable {
1118	<	Thread.sleep(MEDIUM_DELAY_MS);
1118	>	delay(MEDIUM_DELAY_MS);
1119		}
1120		}
1121
1122		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1123		protected void realRun() throws InterruptedException {
1124	<	Thread.sleep(MEDIUM_DELAY_MS);
1124	>	delay(MEDIUM_DELAY_MS);
1125		}
1126		}
1127
1128	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1129	+	return new CheckedRunnable() {
1130	+	protected void realRun() {
1131	+	try {
1132	+	delay(timeoutMillis);
1133	+	} catch (InterruptedException ok) {}
1134	+	}};
1135	+	}
1136	+
1137		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1138		protected void realRun() {
1139		try {
1140	<	Thread.sleep(MEDIUM_DELAY_MS);
1140	>	delay(MEDIUM_DELAY_MS);
1141		} catch (InterruptedException ok) {}
1142		}
1143		}
#	Line 703 | Line 1145 | public class JSR166TestCase extends Test
1145		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1146		protected void realRun() {
1147		try {
1148	<	Thread.sleep(LONG_DELAY_MS);
1148	>	delay(LONG_DELAY_MS);
1149		} catch (InterruptedException ok) {}
1150		}
1151		}
#	Line 717 | Line 1159 | public class JSR166TestCase extends Test
1159		}
1160		}
1161
1162	+	public interface TrackedRunnable extends Runnable {
1163	+	boolean isDone();
1164	+	}
1165	+
1166	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1167	+	return new TrackedRunnable() {
1168	+	private volatile boolean done = false;
1169	+	public boolean isDone() { return done; }
1170	+	public void run() {
1171	+	try {
1172	+	delay(timeoutMillis);
1173	+	done = true;
1174	+	} catch (InterruptedException ok) {}
1175	+	}
1176	+	};
1177	+	}
1178	+
1179		public static class TrackedShortRunnable implements Runnable {
1180		public volatile boolean done = false;
1181		public void run() {
1182		try {
1183	<	Thread.sleep(SMALL_DELAY_MS);
1183	>	delay(SHORT_DELAY_MS);
1184	>	done = true;
1185	>	} catch (InterruptedException ok) {}
1186	>	}
1187	>	}
1188	>
1189	>	public static class TrackedSmallRunnable implements Runnable {
1190	>	public volatile boolean done = false;
1191	>	public void run() {
1192	>	try {
1193	>	delay(SMALL_DELAY_MS);
1194		done = true;
1195		} catch (InterruptedException ok) {}
1196		}
#	Line 731 | Line 1200 | public class JSR166TestCase extends Test
1200		public volatile boolean done = false;
1201		public void run() {
1202		try {
1203	<	Thread.sleep(MEDIUM_DELAY_MS);
1203	>	delay(MEDIUM_DELAY_MS);
1204		done = true;
1205		} catch (InterruptedException ok) {}
1206		}
#	Line 741 | Line 1210 | public class JSR166TestCase extends Test
1210		public volatile boolean done = false;
1211		public void run() {
1212		try {
1213	<	Thread.sleep(LONG_DELAY_MS);
1213	>	delay(LONG_DELAY_MS);
1214		done = true;
1215		} catch (InterruptedException ok) {}
1216		}
#	Line 758 | Line 1227 | public class JSR166TestCase extends Test
1227		public volatile boolean done = false;
1228		public Object call() {
1229		try {
1230	<	Thread.sleep(SMALL_DELAY_MS);
1230	>	delay(SMALL_DELAY_MS);
1231		done = true;
1232		} catch (InterruptedException ok) {}
1233		return Boolean.TRUE;
1234		}
1235		}
1236
1237	+	/**
1238	+	* Analog of CheckedRunnable for RecursiveAction
1239	+	*/
1240	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1241	+	protected abstract void realCompute() throws Throwable;
1242	+
1243	+	@Override protected final void compute() {
1244	+	try {
1245	+	realCompute();
1246	+	} catch (Throwable t) {
1247	+	threadUnexpectedException(t);
1248	+	}
1249	+	}
1250	+	}
1251	+
1252	+	/**
1253	+	* Analog of CheckedCallable for RecursiveTask
1254	+	*/
1255	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1256	+	protected abstract T realCompute() throws Throwable;
1257	+
1258	+	@Override protected final T compute() {
1259	+	try {
1260	+	return realCompute();
1261	+	} catch (Throwable t) {
1262	+	threadUnexpectedException(t);
1263	+	return null;
1264	+	}
1265	+	}
1266	+	}
1267
1268		/**
1269		* For use as RejectedExecutionHandler in constructors
#	Line 774 | Line 1273 | public class JSR166TestCase extends Test
1273		ThreadPoolExecutor executor) {}
1274		}
1275
1276	+	/**
1277	+	* A CyclicBarrier that uses timed await and fails with
1278	+	* AssertionFailedErrors instead of throwing checked exceptions.
1279	+	*/
1280	+	public class CheckedBarrier extends CyclicBarrier {
1281	+	public CheckedBarrier(int parties) { super(parties); }
1282	+
1283	+	public int await() {
1284	+	try {
1285	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1286	+	} catch (TimeoutException e) {
1287	+	throw new AssertionFailedError("timed out");
1288	+	} catch (Exception e) {
1289	+	AssertionFailedError afe =
1290	+	new AssertionFailedError("Unexpected exception: " + e);
1291	+	afe.initCause(e);
1292	+	throw afe;
1293	+	}
1294	+	}
1295	+	}
1296	+
1297	+	void checkEmpty(BlockingQueue q) {
1298	+	try {
1299	+	assertTrue(q.isEmpty());
1300	+	assertEquals(0, q.size());
1301	+	assertNull(q.peek());
1302	+	assertNull(q.poll());
1303	+	assertNull(q.poll(0, MILLISECONDS));
1304	+	assertEquals(q.toString(), "[]");
1305	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1306	+	assertFalse(q.iterator().hasNext());
1307	+	try {
1308	+	q.element();
1309	+	shouldThrow();
1310	+	} catch (NoSuchElementException success) {}
1311	+	try {
1312	+	q.iterator().next();
1313	+	shouldThrow();
1314	+	} catch (NoSuchElementException success) {}
1315	+	try {
1316	+	q.remove();
1317	+	shouldThrow();
1318	+	} catch (NoSuchElementException success) {}
1319	+	} catch (InterruptedException ie) {
1320	+	threadUnexpectedException(ie);
1321	+	}
1322	+	}
1323	+
1324	+	void assertSerialEquals(Object x, Object y) {
1325	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1326	+	}
1327	+
1328	+	void assertNotSerialEquals(Object x, Object y) {
1329	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1330	+	}
1331	+
1332	+	byte[] serialBytes(Object o) {
1333	+	try {
1334	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1335	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1336	+	oos.writeObject(o);
1337	+	oos.flush();
1338	+	oos.close();
1339	+	return bos.toByteArray();
1340	+	} catch (Throwable t) {
1341	+	threadUnexpectedException(t);
1342	+	return new byte[0];
1343	+	}
1344	+	}
1345	+
1346	+	@SuppressWarnings("unchecked")
1347	+	<T> T serialClone(T o) {
1348	+	try {
1349	+	ObjectInputStream ois = new ObjectInputStream
1350	+	(new ByteArrayInputStream(serialBytes(o)));
1351	+	T clone = (T) ois.readObject();
1352	+	assertSame(o.getClass(), clone.getClass());
1353	+	return clone;
1354	+	} catch (Throwable t) {
1355	+	threadUnexpectedException(t);
1356	+	return null;
1357	+	}
1358	+	}
1359	+
1360	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1361	+	Runnable... throwingActions) {
1362	+	for (Runnable throwingAction : throwingActions) {
1363	+	boolean threw = false;
1364	+	try { throwingAction.run(); }
1365	+	catch (Throwable t) {
1366	+	threw = true;
1367	+	if (!expectedExceptionClass.isInstance(t)) {
1368	+	AssertionFailedError afe =
1369	+	new AssertionFailedError
1370	+	("Expected " + expectedExceptionClass.getName() +
1371	+	", got " + t.getClass().getName());
1372	+	afe.initCause(t);
1373	+	threadUnexpectedException(afe);
1374	+	}
1375	+	}
1376	+	if (!threw)
1377	+	shouldThrow(expectedExceptionClass.getName());
1378	+	}
1379	+	}
1380		}

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