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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.1 by dl, Sun Sep 14 20:42:40 2003 UTC vs.
Revision 1.64 by jsr166, Fri Oct 15 22:30:07 2010 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/licenses/publicdomain
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.util.PropertyPermission;
11		import java.util.concurrent.*;
12	<	import java.io.*;
13	<
12	>	import java.util.concurrent.atomic.AtomicReference;
13	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
14	>	import java.security.CodeSource;
15	>	import java.security.Permission;
16	>	import java.security.PermissionCollection;
17	>	import java.security.Permissions;
18	>	import java.security.Policy;
19	>	import java.security.ProtectionDomain;
20	>	import java.security.SecurityPermission;
21
22		/**
23	<	* Base class for JSR166 Junit TCK tests.  Defines some constants and
24	<	* utility methods, as well as a simple framework for helping to make
25	<	* sure that assertions failing in generated threads cause the
26	<	* associated test that generated them to itself fail (which JUnit doe
27	<	* not otherwise arrange).  The rules for creating such tests are:
23	>	* Base class for JSR166 Junit TCK tests.  Defines some constants,
24	>	* utility methods and classes, as well as a simple framework for
25	>	* helping to make sure that assertions failing in generated threads
26	>	* cause the associated test that generated them to itself fail (which
27	>	* JUnit does not otherwise arrange).  The rules for creating such
28	>	* tests are:
29		*
30		* <ol>
31		*
32		* <li> All assertions in code running in generated threads must use
33	<	* the forms {@link threadFail} , {@link threadAssertTrue} {@link
34	<	* threadAssertEquals}, or {@link threadAssertNull}, (not
35	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
33	>	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
34	>	* #threadAssertEquals}, or {@link #threadAssertNull}, (not
35	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
36		* particularly recommended) for other code to use these forms too.
37		* Only the most typically used JUnit assertion methods are defined
38		* this way, but enough to live with.</li>
39		*
40	<	* <li> If you override {@link setUp} or {@link tearDown}, make sure
41	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
40	>	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
41	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
42		* them. These methods are used to clear and check for thread
43		* assertion failures.</li>
44		*
45	<	* <li>All delays and timeouts must use one of the constants {@link
46	<	* SHORT_DELAY_MS}, {@link SMALL_DELAY_MS}, {@link MEDIUM_DELAY_MS},
47	<	* {@link LONG_DELAY_MS}. The idea here is that a SHORT is always
48	<	* discriminatable from zero time, and always allows enough time for
49	<	* the small amounts of computation (creating a thread, calling a few
45	>	* <li>All delays and timeouts must use one of the constants {@code
46	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
47	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
48	>	* discriminable from zero time, and always allows enough time for the
49	>	* small amounts of computation (creating a thread, calling a few
50		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
51		* is always discriminable as larger than SHORT and smaller than
52		* MEDIUM.  And so on. These constants are set to conservative values,
53	<	* (100, 500, 1000, 5000 MS) but even so, if there is ever any doubt,
54	<	* they can all be increased in one spot to rerun tests on slower
46	<	* platforms</li>
53	>	* but even so, if there is ever any doubt, they can all be increased
54	>	* in one spot to rerun tests on slower platforms.</li>
55		*
56		* <li> All threads generated must be joined inside each test case
57	<	* method (or <tt>fail</tt> to do so) before returning from the
58	<	* method. The {@link joinPool} method can be used to do this when
57	>	* method (or {@code fail} to do so) before returning from the
58	>	* method. The {@code joinPool} method can be used to do this when
59		* using Executors.</li>
60		*
61		* </ol>
62	+	*
63	+	* <p> <b>Other notes</b>
64	+	* <ul>
65	+	*
66	+	* <li> Usually, there is one testcase method per JSR166 method
67	+	* covering "normal" operation, and then as many exception-testing
68	+	* methods as there are exceptions the method can throw. Sometimes
69	+	* there are multiple tests per JSR166 method when the different
70	+	* "normal" behaviors differ significantly. And sometimes testcases
71	+	* cover multiple methods when they cannot be tested in
72	+	* isolation.</li>
73	+	*
74	+	* <li> The documentation style for testcases is to provide as javadoc
75	+	* a simple sentence or two describing the property that the testcase
76	+	* method purports to test. The javadocs do not say anything about how
77	+	* the property is tested. To find out, read the code.</li>
78	+	*
79	+	* <li> These tests are "conformance tests", and do not attempt to
80	+	* test throughput, latency, scalability or other performance factors
81	+	* (see the separate "jtreg" tests for a set intended to check these
82	+	* for the most central aspects of functionality.) So, most tests use
83	+	* the smallest sensible numbers of threads, collection sizes, etc
84	+	* needed to check basic conformance.</li>
85	+	*
86	+	* <li>The test classes currently do not declare inclusion in
87	+	* any particular package to simplify things for people integrating
88	+	* them in TCK test suites.</li>
89	+	*
90	+	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
91	+	* runs all JSR166 unit tests.</li>
92	+	*
93	+	* </ul>
94		*/
95		public class JSR166TestCase extends TestCase {
96	+	private static final boolean useSecurityManager =
97	+	Boolean.getBoolean("jsr166.useSecurityManager");
98	+
99	+	protected static final boolean expensiveTests =
100	+	Boolean.getBoolean("jsr166.expensiveTests");
101
102		/**
103	<	* Flag set true if any threadAssert methods fail
103	>	* If true, report on stdout all "slow" tests, that is, ones that
104	>	* take more than profileThreshold milliseconds to execute.
105		*/
106	<	protected volatile boolean threadFailed;
106	>	private static final boolean profileTests =
107	>	Boolean.getBoolean("jsr166.profileTests");
108
109		/**
110	<	* Initialize test to indicat that no thread assertions have failed
110	>	* The number of milliseconds that tests are permitted for
111	>	* execution without being reported, when profileTests is set.
112		*/
113	<	public void setUp() {
114	<	threadFailed = false;
113	>	private static final long profileThreshold =
114	>	Long.getLong("jsr166.profileThreshold", 100);
115	>
116	>	protected void runTest() throws Throwable {
117	>	if (profileTests)
118	>	runTestProfiled();
119	>	else
120	>	super.runTest();
121	>	}
122	>
123	>	protected void runTestProfiled() throws Throwable {
124	>	long t0 = System.nanoTime();
125	>	try {
126	>	super.runTest();
127	>	} finally {
128	>	long elapsedMillis =
129	>	(System.nanoTime() - t0) / (1000L * 1000L);
130	>	if (elapsedMillis >= profileThreshold)
131	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
132	>	}
133		}
134
135		/**
136	<	* Trigger test case failure if any thread assertions have failed
136	>	* Runs all JSR166 unit tests using junit.textui.TestRunner
137	>	*/
138	>	public static void main(String[] args) {
139	>	if (useSecurityManager) {
140	>	System.err.println("Setting a permissive security manager");
141	>	Policy.setPolicy(permissivePolicy());
142	>	System.setSecurityManager(new SecurityManager());
143	>	}
144	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
145	>
146	>	Test s = suite();
147	>	for (int i = 0; i < iters; ++i) {
148	>	junit.textui.TestRunner.run(s);
149	>	System.gc();
150	>	System.runFinalization();
151	>	}
152	>	System.exit(0);
153	>	}
154	>
155	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
156	>	TestSuite suite = new TestSuite();
157	>	for (Object suiteOrClass : suiteOrClasses) {
158	>	if (suiteOrClass instanceof TestSuite)
159	>	suite.addTest((TestSuite) suiteOrClass);
160	>	else if (suiteOrClass instanceof Class)
161	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
162	>	else
163	>	throw new ClassCastException("not a test suite or class");
164	>	}
165	>	return suite;
166	>	}
167	>
168	>	/**
169	>	* Collects all JSR166 unit tests as one suite.
170	>	*/
171	>	public static Test suite() {
172	>	return newTestSuite(
173	>	ForkJoinPoolTest.suite(),
174	>	ForkJoinTaskTest.suite(),
175	>	RecursiveActionTest.suite(),
176	>	RecursiveTaskTest.suite(),
177	>	LinkedTransferQueueTest.suite(),
178	>	PhaserTest.suite(),
179	>	ThreadLocalRandomTest.suite(),
180	>	AbstractExecutorServiceTest.suite(),
181	>	AbstractQueueTest.suite(),
182	>	AbstractQueuedSynchronizerTest.suite(),
183	>	AbstractQueuedLongSynchronizerTest.suite(),
184	>	ArrayBlockingQueueTest.suite(),
185	>	ArrayDequeTest.suite(),
186	>	AtomicBooleanTest.suite(),
187	>	AtomicIntegerArrayTest.suite(),
188	>	AtomicIntegerFieldUpdaterTest.suite(),
189	>	AtomicIntegerTest.suite(),
190	>	AtomicLongArrayTest.suite(),
191	>	AtomicLongFieldUpdaterTest.suite(),
192	>	AtomicLongTest.suite(),
193	>	AtomicMarkableReferenceTest.suite(),
194	>	AtomicReferenceArrayTest.suite(),
195	>	AtomicReferenceFieldUpdaterTest.suite(),
196	>	AtomicReferenceTest.suite(),
197	>	AtomicStampedReferenceTest.suite(),
198	>	ConcurrentHashMapTest.suite(),
199	>	ConcurrentLinkedDequeTest.suite(),
200	>	ConcurrentLinkedQueueTest.suite(),
201	>	ConcurrentSkipListMapTest.suite(),
202	>	ConcurrentSkipListSubMapTest.suite(),
203	>	ConcurrentSkipListSetTest.suite(),
204	>	ConcurrentSkipListSubSetTest.suite(),
205	>	CopyOnWriteArrayListTest.suite(),
206	>	CopyOnWriteArraySetTest.suite(),
207	>	CountDownLatchTest.suite(),
208	>	CyclicBarrierTest.suite(),
209	>	DelayQueueTest.suite(),
210	>	EntryTest.suite(),
211	>	ExchangerTest.suite(),
212	>	ExecutorsTest.suite(),
213	>	ExecutorCompletionServiceTest.suite(),
214	>	FutureTaskTest.suite(),
215	>	LinkedBlockingDequeTest.suite(),
216	>	LinkedBlockingQueueTest.suite(),
217	>	LinkedListTest.suite(),
218	>	LockSupportTest.suite(),
219	>	PriorityBlockingQueueTest.suite(),
220	>	PriorityQueueTest.suite(),
221	>	ReentrantLockTest.suite(),
222	>	ReentrantReadWriteLockTest.suite(),
223	>	ScheduledExecutorTest.suite(),
224	>	ScheduledExecutorSubclassTest.suite(),
225	>	SemaphoreTest.suite(),
226	>	SynchronousQueueTest.suite(),
227	>	SystemTest.suite(),
228	>	ThreadLocalTest.suite(),
229	>	ThreadPoolExecutorTest.suite(),
230	>	ThreadPoolExecutorSubclassTest.suite(),
231	>	ThreadTest.suite(),
232	>	TimeUnitTest.suite(),
233	>	TreeMapTest.suite(),
234	>	TreeSetTest.suite(),
235	>	TreeSubMapTest.suite(),
236	>	TreeSubSetTest.suite());
237	>	}
238	>
239	>
240	>	public static long SHORT_DELAY_MS;
241	>	public static long SMALL_DELAY_MS;
242	>	public static long MEDIUM_DELAY_MS;
243	>	public static long LONG_DELAY_MS;
244	>
245	>
246	>	/**
247	>	* Returns the shortest timed delay. This could
248	>	* be reimplemented to use for example a Property.
249	>	*/
250	>	protected long getShortDelay() {
251	>	return 50;
252	>	}
253	>
254	>
255	>	/**
256	>	* Sets delays as multiples of SHORT_DELAY.
257	>	*/
258	>	protected void setDelays() {
259	>	SHORT_DELAY_MS = getShortDelay();
260	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
261	>	MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
262	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
263	>	}
264	>
265	>	/**
266	>	* The first exception encountered if any threadAssertXXX method fails.
267	>	*/
268	>	private final AtomicReference<Throwable> threadFailure
269	>	= new AtomicReference<Throwable>(null);
270	>
271	>	/**
272	>	* Records an exception so that it can be rethrown later in the test
273	>	* harness thread, triggering a test case failure.  Only the first
274	>	* failure is recorded; subsequent calls to this method from within
275	>	* the same test have no effect.
276		*/
277	<	public void tearDown() {
278	<	assertFalse(threadFailed);
277	>	public void threadRecordFailure(Throwable t) {
278	>	threadFailure.compareAndSet(null, t);
279		}
280
281	+	public void setUp() {
282	+	setDelays();
283	+	}
284	+
285	+	/**
286	+	* Triggers test case failure if any thread assertions have failed,
287	+	* by rethrowing, in the test harness thread, any exception recorded
288	+	* earlier by threadRecordFailure.
289	+	*/
290	+	public void tearDown() throws Exception {
291	+	Throwable t = threadFailure.get();
292	+	if (t != null) {
293	+	if (t instanceof Error)
294	+	throw (Error) t;
295	+	else if (t instanceof RuntimeException)
296	+	throw (RuntimeException) t;
297	+	else if (t instanceof Exception)
298	+	throw (Exception) t;
299	+	else {
300	+	AssertionFailedError afe =
301	+	new AssertionFailedError(t.toString());
302	+	afe.initCause(t);
303	+	throw afe;
304	+	}
305	+	}
306	+	}
307	+
308	+	/**
309	+	* Just like fail(reason), but additionally recording (using
310	+	* threadRecordFailure) any AssertionFailedError thrown, so that
311	+	* the current testcase will fail.
312	+	*/
313		public void threadFail(String reason) {
314	<	threadFailed = true;
315	<	fail(reason);
314	>	try {
315	>	fail(reason);
316	>	} catch (AssertionFailedError t) {
317	>	threadRecordFailure(t);
318	>	fail(reason);
319	>	}
320		}
321
322	+	/**
323	+	* Just like assertTrue(b), but additionally recording (using
324	+	* threadRecordFailure) any AssertionFailedError thrown, so that
325	+	* the current testcase will fail.
326	+	*/
327		public void threadAssertTrue(boolean b) {
328	<	if (!b) {
83	<	threadFailed = true;
328	>	try {
329		assertTrue(b);
330	+	} catch (AssertionFailedError t) {
331	+	threadRecordFailure(t);
332	+	throw t;
333		}
334		}
335	+
336	+	/**
337	+	* Just like assertFalse(b), but additionally recording (using
338	+	* threadRecordFailure) any AssertionFailedError thrown, so that
339	+	* the current testcase will fail.
340	+	*/
341		public void threadAssertFalse(boolean b) {
342	<	if (b) {
89	<	threadFailed = true;
342	>	try {
343		assertFalse(b);
344	+	} catch (AssertionFailedError t) {
345	+	threadRecordFailure(t);
346	+	throw t;
347		}
348		}
349	+
350	+	/**
351	+	* Just like assertNull(x), but additionally recording (using
352	+	* threadRecordFailure) any AssertionFailedError thrown, so that
353	+	* the current testcase will fail.
354	+	*/
355		public void threadAssertNull(Object x) {
356	<	if (x != null) {
95	<	threadFailed = true;
356	>	try {
357		assertNull(x);
358	+	} catch (AssertionFailedError t) {
359	+	threadRecordFailure(t);
360	+	throw t;
361		}
362		}
363	+
364	+	/**
365	+	* Just like assertEquals(x, y), but additionally recording (using
366	+	* threadRecordFailure) any AssertionFailedError thrown, so that
367	+	* the current testcase will fail.
368	+	*/
369		public void threadAssertEquals(long x, long y) {
370	<	if (x != y) {
101	<	threadFailed = true;
370	>	try {
371		assertEquals(x, y);
372	+	} catch (AssertionFailedError t) {
373	+	threadRecordFailure(t);
374	+	throw t;
375		}
376		}
377	+
378	+	/**
379	+	* Just like assertEquals(x, y), but additionally recording (using
380	+	* threadRecordFailure) any AssertionFailedError thrown, so that
381	+	* the current testcase will fail.
382	+	*/
383		public void threadAssertEquals(Object x, Object y) {
384	<	if (x != y && (x == null || !x.equals(y))) {
107	<	threadFailed = true;
384	>	try {
385		assertEquals(x, y);
386	+	} catch (AssertionFailedError t) {
387	+	threadRecordFailure(t);
388	+	throw t;
389	+	} catch (Throwable t) {
390	+	threadUnexpectedException(t);
391	+	}
392	+	}
393	+
394	+	/**
395	+	* Just like assertSame(x, y), but additionally recording (using
396	+	* threadRecordFailure) any AssertionFailedError thrown, so that
397	+	* the current testcase will fail.
398	+	*/
399	+	public void threadAssertSame(Object x, Object y) {
400	+	try {
401	+	assertSame(x, y);
402	+	} catch (AssertionFailedError t) {
403	+	threadRecordFailure(t);
404	+	throw t;
405	+	}
406	+	}
407	+
408	+	/**
409	+	* Calls threadFail with message "should throw exception".
410	+	*/
411	+	public void threadShouldThrow() {
412	+	threadFail("should throw exception");
413	+	}
414	+
415	+	/**
416	+	* Calls threadFail with message "should throw" + exceptionName.
417	+	*/
418	+	public void threadShouldThrow(String exceptionName) {
419	+	threadFail("should throw " + exceptionName);
420	+	}
421	+
422	+	/**
423	+	* Records the given exception using {@link #threadRecordFailure},
424	+	* then rethrows the exception, wrapping it in an
425	+	* AssertionFailedError if necessary.
426	+	*/
427	+	public void threadUnexpectedException(Throwable t) {
428	+	threadRecordFailure(t);
429	+	t.printStackTrace();
430	+	if (t instanceof RuntimeException)
431	+	throw (RuntimeException) t;
432	+	else if (t instanceof Error)
433	+	throw (Error) t;
434	+	else {
435	+	AssertionFailedError afe =
436	+	new AssertionFailedError("unexpected exception: " + t);
437	+	t.initCause(t);
438	+	throw afe;
439		}
440		}
441
442		/**
443	<	* Wait out termination of a thread pool or fail doing so
443	>	* Waits out termination of a thread pool or fails doing so.
444		*/
445		public void joinPool(ExecutorService exec) {
446		try {
447		exec.shutdown();
448	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
449	<	} catch(InterruptedException ie) {
450	<	fail("unexpected exception");
448	>	assertTrue("ExecutorService did not terminate in a timely manner",
449	>	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
450	>	} catch (SecurityException ok) {
451	>	// Allowed in case test doesn't have privs
452	>	} catch (InterruptedException ie) {
453	>	fail("Unexpected InterruptedException");
454		}
455		}
456
124	–	public static final long SHORT_DELAY_MS =   100;
125	–	public static final long SMALL_DELAY_MS =   500;
126	–	public static final long MEDIUM_DELAY_MS = 1000;
127	–	public static final long LONG_DELAY_MS =   5000;
457
458	+	/**
459	+	* Fails with message "should throw exception".
460	+	*/
461	+	public void shouldThrow() {
462	+	fail("Should throw exception");
463	+	}
464	+
465	+	/**
466	+	* Fails with message "should throw " + exceptionName.
467	+	*/
468	+	public void shouldThrow(String exceptionName) {
469	+	fail("Should throw " + exceptionName);
470	+	}
471
472		/**
473		* The number of elements to place in collections, arrays, etc.
#	Line 134 | Line 476 | public class JSR166TestCase extends Test
476
477		// Some convenient Integer constants
478
479	<	public static final Integer zero = new Integer(0);
480	<	public static final Integer one = new Integer(1);
481	<	public static final Integer two = new Integer(2);
482	<	public static final Integer three  = new Integer(3);
479	>	public static final Integer zero  = new Integer(0);
480	>	public static final Integer one   = new Integer(1);
481	>	public static final Integer two   = new Integer(2);
482	>	public static final Integer three = new Integer(3);
483		public static final Integer four  = new Integer(4);
484		public static final Integer five  = new Integer(5);
485	<	public static final Integer six = new Integer(6);
485	>	public static final Integer six   = new Integer(6);
486		public static final Integer seven = new Integer(7);
487		public static final Integer eight = new Integer(8);
488	<	public static final Integer nine = new Integer(9);
488	>	public static final Integer nine  = new Integer(9);
489		public static final Integer m1  = new Integer(-1);
490		public static final Integer m2  = new Integer(-2);
491		public static final Integer m3  = new Integer(-3);
492	<	public static final Integer m4 = new Integer(-4);
493	<	public static final Integer m5 = new Integer(-5);
492	>	public static final Integer m4  = new Integer(-4);
493	>	public static final Integer m5  = new Integer(-5);
494	>	public static final Integer m6  = new Integer(-6);
495		public static final Integer m10 = new Integer(-10);
496
497
498	<	// Some convenient Runnable classes
498	>	/**
499	>	* Runs Runnable r with a security policy that permits precisely
500	>	* the specified permissions.  If there is no current security
501	>	* manager, the runnable is run twice, both with and without a
502	>	* security manager.  We require that any security manager permit
503	>	* getPolicy/setPolicy.
504	>	*/
505	>	public void runWithPermissions(Runnable r, Permission... permissions) {
506	>	SecurityManager sm = System.getSecurityManager();
507	>	if (sm == null) {
508	>	r.run();
509	>	Policy savedPolicy = Policy.getPolicy();
510	>	try {
511	>	Policy.setPolicy(permissivePolicy());
512	>	System.setSecurityManager(new SecurityManager());
513	>	runWithPermissions(r, permissions);
514	>	} finally {
515	>	System.setSecurityManager(null);
516	>	Policy.setPolicy(savedPolicy);
517	>	}
518	>	} else {
519	>	Policy savedPolicy = Policy.getPolicy();
520	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
521	>	Policy.setPolicy(policy);
522
523	<	public static class NoOpRunnable implements Runnable {
524	<	public void run() {}
523	>	try {
524	>	r.run();
525	>	} finally {
526	>	policy.addPermission(new SecurityPermission("setPolicy"));
527	>	Policy.setPolicy(savedPolicy);
528	>	}
529	>	}
530		}
531
532	<	public static class NoOpCallable implements Callable {
533	<	public Object call() { return Boolean.TRUE; }
532	>	/**
533	>	* Runs a runnable without any permissions.
534	>	*/
535	>	public void runWithoutPermissions(Runnable r) {
536	>	runWithPermissions(r);
537		}
538
539	<	public class ShortRunnable implements Runnable {
540	<	public void run() {
539	>	/**
540	>	* A security policy where new permissions can be dynamically added
541	>	* or all cleared.
542	>	*/
543	>	public static class AdjustablePolicy extends java.security.Policy {
544	>	Permissions perms = new Permissions();
545	>	AdjustablePolicy(Permission... permissions) {
546	>	for (Permission permission : permissions)
547	>	perms.add(permission);
548	>	}
549	>	void addPermission(Permission perm) { perms.add(perm); }
550	>	void clearPermissions() { perms = new Permissions(); }
551	>	public PermissionCollection getPermissions(CodeSource cs) {
552	>	return perms;
553	>	}
554	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
555	>	return perms;
556	>	}
557	>	public boolean implies(ProtectionDomain pd, Permission p) {
558	>	return perms.implies(p);
559	>	}
560	>	public void refresh() {}
561	>	}
562	>
563	>	/**
564	>	* Returns a policy containing all the permissions we ever need.
565	>	*/
566	>	public static Policy permissivePolicy() {
567	>	return new AdjustablePolicy
568	>	// Permissions j.u.c. needs directly
569	>	(new RuntimePermission("modifyThread"),
570	>	new RuntimePermission("getClassLoader"),
571	>	new RuntimePermission("setContextClassLoader"),
572	>	// Permissions needed to change permissions!
573	>	new SecurityPermission("getPolicy"),
574	>	new SecurityPermission("setPolicy"),
575	>	new RuntimePermission("setSecurityManager"),
576	>	// Permissions needed by the junit test harness
577	>	new RuntimePermission("accessDeclaredMembers"),
578	>	new PropertyPermission("*", "read"),
579	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
580	>	}
581	>
582	>	/**
583	>	* Sleeps until the given time has elapsed.
584	>	* Throws AssertionFailedError if interrupted.
585	>	*/
586	>	void sleep(long millis) {
587	>	try {
588	>	Thread.sleep(millis);
589	>	} catch (InterruptedException ie) {
590	>	AssertionFailedError afe =
591	>	new AssertionFailedError("Unexpected InterruptedException");
592	>	afe.initCause(ie);
593	>	throw afe;
594	>	}
595	>	}
596	>
597	>	/**
598	>	* Sleeps until the timeout has elapsed, or interrupted.
599	>	* Does <em>NOT</em> throw InterruptedException.
600	>	*/
601	>	void sleepTillInterrupted(long timeoutMillis) {
602	>	try {
603	>	Thread.sleep(timeoutMillis);
604	>	} catch (InterruptedException wakeup) {}
605	>	}
606	>
607	>	/**
608	>	* Returns a new started daemon Thread running the given runnable.
609	>	*/
610	>	Thread newStartedThread(Runnable runnable) {
611	>	Thread t = new Thread(runnable);
612	>	t.setDaemon(true);
613	>	t.start();
614	>	return t;
615	>	}
616	>
617	>	/**
618	>	* Waits for the specified time (in milliseconds) for the thread
619	>	* to terminate (using {@link Thread#join(long)}), else interrupts
620	>	* the thread (in the hope that it may terminate later) and fails.
621	>	*/
622	>	void awaitTermination(Thread t, long timeoutMillis) {
623	>	try {
624	>	t.join(timeoutMillis);
625	>	} catch (InterruptedException ie) {
626	>	threadUnexpectedException(ie);
627	>	} finally {
628	>	if (t.isAlive()) {
629	>	t.interrupt();
630	>	fail("Test timed out");
631	>	}
632	>	}
633	>	}
634	>
635	>	// Some convenient Runnable classes
636	>
637	>	public abstract class CheckedRunnable implements Runnable {
638	>	protected abstract void realRun() throws Throwable;
639	>
640	>	public final void run() {
641		try {
642	<	Thread.sleep(SHORT_DELAY_MS);
642	>	realRun();
643	>	} catch (Throwable t) {
644	>	threadUnexpectedException(t);
645		}
646	<	catch(Exception e) {
647	<	threadFail("unexpectedException");
646	>	}
647	>	}
648	>
649	>	public abstract class RunnableShouldThrow implements Runnable {
650	>	protected abstract void realRun() throws Throwable;
651	>
652	>	final Class<?> exceptionClass;
653	>
654	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
655	>	this.exceptionClass = exceptionClass;
656	>	}
657	>
658	>	public final void run() {
659	>	try {
660	>	realRun();
661	>	threadShouldThrow(exceptionClass.getSimpleName());
662	>	} catch (Throwable t) {
663	>	if (! exceptionClass.isInstance(t))
664	>	threadUnexpectedException(t);
665		}
666		}
667		}
668
669	<	public class ShortInterruptedRunnable implements Runnable {
670	<	public void run() {
669	>	public abstract class ThreadShouldThrow extends Thread {
670	>	protected abstract void realRun() throws Throwable;
671	>
672	>	final Class<?> exceptionClass;
673	>
674	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
675	>	this.exceptionClass = exceptionClass;
676	>	}
677	>
678	>	public final void run() {
679		try {
680	<	Thread.sleep(SHORT_DELAY_MS);
681	<	threadFail("should throw IE");
680	>	realRun();
681	>	threadShouldThrow(exceptionClass.getSimpleName());
682	>	} catch (Throwable t) {
683	>	if (! exceptionClass.isInstance(t))
684	>	threadUnexpectedException(t);
685		}
686	<	catch(InterruptedException success) {
686	>	}
687	>	}
688	>
689	>	public abstract class CheckedInterruptedRunnable implements Runnable {
690	>	protected abstract void realRun() throws Throwable;
691	>
692	>	public final void run() {
693	>	try {
694	>	realRun();
695	>	threadShouldThrow("InterruptedException");
696	>	} catch (InterruptedException success) {
697	>	} catch (Throwable t) {
698	>	threadUnexpectedException(t);
699		}
700		}
701		}
702
703	<	public class SmallRunnable implements Runnable {
704	<	public void run() {
703	>	public abstract class CheckedCallable<T> implements Callable<T> {
704	>	protected abstract T realCall() throws Throwable;
705	>
706	>	public final T call() {
707		try {
708	<	Thread.sleep(SMALL_DELAY_MS);
708	>	return realCall();
709	>	} catch (Throwable t) {
710	>	threadUnexpectedException(t);
711	>	return null;
712		}
713	<	catch(Exception e) {
714	<	threadFail("unexpectedException");
713	>	}
714	>	}
715	>
716	>	public abstract class CheckedInterruptedCallable<T>
717	>	implements Callable<T> {
718	>	protected abstract T realCall() throws Throwable;
719	>
720	>	public final T call() {
721	>	try {
722	>	T result = realCall();
723	>	threadShouldThrow("InterruptedException");
724	>	return result;
725	>	} catch (InterruptedException success) {
726	>	} catch (Throwable t) {
727	>	threadUnexpectedException(t);
728		}
729	+	return null;
730		}
731		}
732
733	<	public class SmallCallable implements Callable {
734	<	public Object call() {
733	>	public static class NoOpRunnable implements Runnable {
734	>	public void run() {}
735	>	}
736	>
737	>	public static class NoOpCallable implements Callable {
738	>	public Object call() { return Boolean.TRUE; }
739	>	}
740	>
741	>	public static final String TEST_STRING = "a test string";
742	>
743	>	public static class StringTask implements Callable<String> {
744	>	public String call() { return TEST_STRING; }
745	>	}
746	>
747	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
748	>	return new CheckedCallable<String>() {
749	>	protected String realCall() {
750	>	try {
751	>	latch.await();
752	>	} catch (InterruptedException quittingTime) {}
753	>	return TEST_STRING;
754	>	}};
755	>	}
756	>
757	>	public static class NPETask implements Callable<String> {
758	>	public String call() { throw new NullPointerException(); }
759	>	}
760	>
761	>	public static class CallableOne implements Callable<Integer> {
762	>	public Integer call() { return one; }
763	>	}
764	>
765	>	public class ShortRunnable extends CheckedRunnable {
766	>	protected void realRun() throws Throwable {
767	>	Thread.sleep(SHORT_DELAY_MS);
768	>	}
769	>	}
770	>
771	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
772	>	protected void realRun() throws InterruptedException {
773	>	Thread.sleep(SHORT_DELAY_MS);
774	>	}
775	>	}
776	>
777	>	public class SmallRunnable extends CheckedRunnable {
778	>	protected void realRun() throws Throwable {
779	>	Thread.sleep(SMALL_DELAY_MS);
780	>	}
781	>	}
782	>
783	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
784	>	protected void realRun() {
785		try {
786		Thread.sleep(SMALL_DELAY_MS);
787	<	}
788	<	catch(Exception e) {
789	<	threadFail("unexpectedException");
790	<	}
787	>	} catch (InterruptedException ok) {}
788	>	}
789	>	}
790	>
791	>	public class SmallCallable extends CheckedCallable {
792	>	protected Object realCall() throws InterruptedException {
793	>	Thread.sleep(SMALL_DELAY_MS);
794		return Boolean.TRUE;
795		}
796		}
797
798	<	public class SmallInterruptedRunnable implements Runnable {
798	>	public class MediumRunnable extends CheckedRunnable {
799	>	protected void realRun() throws Throwable {
800	>	Thread.sleep(MEDIUM_DELAY_MS);
801	>	}
802	>	}
803	>
804	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
805	>	protected void realRun() throws InterruptedException {
806	>	Thread.sleep(MEDIUM_DELAY_MS);
807	>	}
808	>	}
809	>
810	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
811	>	return new CheckedRunnable() {
812	>	protected void realRun() {
813	>	try {
814	>	Thread.sleep(timeoutMillis);
815	>	} catch (InterruptedException ok) {}
816	>	}};
817	>	}
818	>
819	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
820	>	protected void realRun() {
821	>	try {
822	>	Thread.sleep(MEDIUM_DELAY_MS);
823	>	} catch (InterruptedException ok) {}
824	>	}
825	>	}
826	>
827	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
828	>	protected void realRun() {
829	>	try {
830	>	Thread.sleep(LONG_DELAY_MS);
831	>	} catch (InterruptedException ok) {}
832	>	}
833	>	}
834	>
835	>	/**
836	>	* For use as ThreadFactory in constructors
837	>	*/
838	>	public static class SimpleThreadFactory implements ThreadFactory {
839	>	public Thread newThread(Runnable r) {
840	>	return new Thread(r);
841	>	}
842	>	}
843	>
844	>	public interface TrackedRunnable extends Runnable {
845	>	boolean isDone();
846	>	}
847	>
848	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
849	>	return new TrackedRunnable() {
850	>	private volatile boolean done = false;
851	>	public boolean isDone() { return done; }
852	>	public void run() {
853	>	try {
854	>	Thread.sleep(timeoutMillis);
855	>	done = true;
856	>	} catch (InterruptedException ok) {}
857	>	}
858	>	};
859	>	}
860	>
861	>	public static class TrackedShortRunnable implements Runnable {
862	>	public volatile boolean done = false;
863		public void run() {
864		try {
865	<	Thread.sleep(SMALL_DELAY_MS);
866	<	threadFail("should throw IE");
867	<	}
216	<	catch(InterruptedException success) {
217	<	}
865	>	Thread.sleep(SHORT_DELAY_MS);
866	>	done = true;
867	>	} catch (InterruptedException ok) {}
868		}
869		}
870
871	+	public static class TrackedSmallRunnable implements Runnable {
872	+	public volatile boolean done = false;
873	+	public void run() {
874	+	try {
875	+	Thread.sleep(SMALL_DELAY_MS);
876	+	done = true;
877	+	} catch (InterruptedException ok) {}
878	+	}
879	+	}
880
881	<	public class MediumRunnable implements Runnable {
881	>	public static class TrackedMediumRunnable implements Runnable {
882	>	public volatile boolean done = false;
883		public void run() {
884		try {
885		Thread.sleep(MEDIUM_DELAY_MS);
886	<	}
887	<	catch(Exception e) {
228	<	threadFail("unexpectedException");
229	<	}
886	>	done = true;
887	>	} catch (InterruptedException ok) {}
888		}
889		}
890
891	<	public class MediumInterruptedRunnable implements Runnable {
891	>	public static class TrackedLongRunnable implements Runnable {
892	>	public volatile boolean done = false;
893		public void run() {
894		try {
895	<	Thread.sleep(MEDIUM_DELAY_MS);
896	<	threadFail("should throw IE");
897	<	}
239	<	catch(InterruptedException success) {
240	<	}
895	>	Thread.sleep(LONG_DELAY_MS);
896	>	done = true;
897	>	} catch (InterruptedException ok) {}
898		}
899		}
900
901	<	public class MediumPossiblyInterruptedRunnable implements Runnable {
901	>	public static class TrackedNoOpRunnable implements Runnable {
902	>	public volatile boolean done = false;
903		public void run() {
904	+	done = true;
905	+	}
906	+	}
907	+
908	+	public static class TrackedCallable implements Callable {
909	+	public volatile boolean done = false;
910	+	public Object call() {
911		try {
912	<	Thread.sleep(MEDIUM_DELAY_MS);
912	>	Thread.sleep(SMALL_DELAY_MS);
913	>	done = true;
914	>	} catch (InterruptedException ok) {}
915	>	return Boolean.TRUE;
916	>	}
917	>	}
918	>
919	>	/**
920	>	* Analog of CheckedRunnable for RecursiveAction
921	>	*/
922	>	public abstract class CheckedRecursiveAction extends RecursiveAction {
923	>	protected abstract void realCompute() throws Throwable;
924	>
925	>	public final void compute() {
926	>	try {
927	>	realCompute();
928	>	} catch (Throwable t) {
929	>	threadUnexpectedException(t);
930	>	}
931	>	}
932	>	}
933	>
934	>	/**
935	>	* Analog of CheckedCallable for RecursiveTask
936	>	*/
937	>	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
938	>	protected abstract T realCompute() throws Throwable;
939	>
940	>	public final T compute() {
941	>	try {
942	>	return realCompute();
943	>	} catch (Throwable t) {
944	>	threadUnexpectedException(t);
945	>	return null;
946		}
947	<	catch(InterruptedException success) {
947	>	}
948	>	}
949	>
950	>	/**
951	>	* For use as RejectedExecutionHandler in constructors
952	>	*/
953	>	public static class NoOpREHandler implements RejectedExecutionHandler {
954	>	public void rejectedExecution(Runnable r,
955	>	ThreadPoolExecutor executor) {}
956	>	}
957	>
958	>	/**
959	>	* A CyclicBarrier that fails with AssertionFailedErrors instead
960	>	* of throwing checked exceptions.
961	>	*/
962	>	public class CheckedBarrier extends CyclicBarrier {
963	>	public CheckedBarrier(int parties) { super(parties); }
964	>
965	>	public int await() {
966	>	try {
967	>	return super.await();
968	>	} catch (Exception e) {
969	>	AssertionFailedError afe =
970	>	new AssertionFailedError("Unexpected exception: " + e);
971	>	afe.initCause(e);
972	>	throw afe;
973		}
974		}
975		}
976	<
976	>
977		}

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