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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.4 by dl, Thu Sep 25 11:02:41 2003 UTC vs.
Revision 1.53 by jsr166, Thu Sep 16 00:52:49 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		* 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>
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	+	/**
100	+	* Runs all JSR166 unit tests using junit.textui.TestRunner
101	+	*/
102	+	public static void main(String[] args) {
103	+	if (useSecurityManager) {
104	+	System.err.println("Setting a permissive security manager");
105	+	Policy.setPolicy(permissivePolicy());
106	+	System.setSecurityManager(new SecurityManager());
107	+	}
108	+	int iters = 1;
109	+	if (args.length > 0)
110	+	iters = Integer.parseInt(args[0]);
111	+	Test s = suite();
112	+	for (int i = 0; i < iters; ++i) {
113	+	junit.textui.TestRunner.run(s);
114	+	System.gc();
115	+	System.runFinalization();
116	+	}
117	+	System.exit(0);
118	+	}
119	+
120	+	/**
121	+	* Collects all JSR166 unit tests as one suite
122	+	*/
123	+	public static Test suite() {
124	+	TestSuite suite = new TestSuite("JSR166 Unit Tests");
125	+
126	+	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
127	+	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
128	+	suite.addTest(new TestSuite(RecursiveActionTest.class));
129	+	suite.addTest(new TestSuite(RecursiveTaskTest.class));
130	+	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
131	+	suite.addTest(new TestSuite(PhaserTest.class));
132	+	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
133	+	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
134	+	suite.addTest(new TestSuite(AbstractQueueTest.class));
135	+	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
136	+	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
137	+	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
138	+	suite.addTest(new TestSuite(ArrayDequeTest.class));
139	+	suite.addTest(new TestSuite(AtomicBooleanTest.class));
140	+	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
141	+	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
142	+	suite.addTest(new TestSuite(AtomicIntegerTest.class));
143	+	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
144	+	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
145	+	suite.addTest(new TestSuite(AtomicLongTest.class));
146	+	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
147	+	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
148	+	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
149	+	suite.addTest(new TestSuite(AtomicReferenceTest.class));
150	+	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
151	+	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
152	+	suite.addTest(new TestSuite(ConcurrentLinkedDequeTest.class));
153	+	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
154	+	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
155	+	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
156	+	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
157	+	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
158	+	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
159	+	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
160	+	suite.addTest(new TestSuite(CountDownLatchTest.class));
161	+	suite.addTest(new TestSuite(CyclicBarrierTest.class));
162	+	suite.addTest(new TestSuite(DelayQueueTest.class));
163	+	suite.addTest(new TestSuite(EntryTest.class));
164	+	suite.addTest(new TestSuite(ExchangerTest.class));
165	+	suite.addTest(new TestSuite(ExecutorsTest.class));
166	+	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
167	+	suite.addTest(new TestSuite(FutureTaskTest.class));
168	+	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
169	+	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
170	+	suite.addTest(new TestSuite(LinkedListTest.class));
171	+	suite.addTest(new TestSuite(LockSupportTest.class));
172	+	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
173	+	suite.addTest(new TestSuite(PriorityQueueTest.class));
174	+	suite.addTest(new TestSuite(ReentrantLockTest.class));
175	+	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
176	+	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
177	+	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
178	+	suite.addTest(new TestSuite(SemaphoreTest.class));
179	+	suite.addTest(new TestSuite(SynchronousQueueTest.class));
180	+	suite.addTest(new TestSuite(SystemTest.class));
181	+	suite.addTest(new TestSuite(ThreadLocalTest.class));
182	+	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
183	+	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
184	+	suite.addTest(new TestSuite(ThreadTest.class));
185	+	suite.addTest(new TestSuite(TimeUnitTest.class));
186	+	suite.addTest(new TestSuite(TreeMapTest.class));
187	+	suite.addTest(new TestSuite(TreeSetTest.class));
188	+	suite.addTest(new TestSuite(TreeSubMapTest.class));
189	+	suite.addTest(new TestSuite(TreeSubSetTest.class));
190	+
191	+	return suite;
192	+	}
193	+
194
195		public static long SHORT_DELAY_MS;
196		public static long SMALL_DELAY_MS;
#	Line 60 | Line 199 | public class JSR166TestCase extends Test
199
200
201		/**
202	<	* Return the shortest timed delay. This could
203	<	* be reimplmented to use for example a Property.
204	<	*/
202	>	* Returns the shortest timed delay. This could
203	>	* be reimplemented to use for example a Property.
204	>	*/
205		protected long getShortDelay() {
206	<	return 100;
206	>	return 50;
207		}
208
209
210		/**
211	<	* Set delays as multiples fo SHORT_DELAY.
211	>	* Sets delays as multiples of SHORT_DELAY.
212		*/
213	<	protected  void setDelays() {
213	>	protected void setDelays() {
214		SHORT_DELAY_MS = getShortDelay();
215	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
215	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
216		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
217	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
217	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
218		}
219
220		/**
221	<	* Flag set true if any threadAssert methods fail
221	>	* The first exception encountered if any threadAssertXXX method fails.
222		*/
223	<	protected volatile boolean threadFailed;
223	>	private final AtomicReference<Throwable> threadFailure
224	>	= new AtomicReference<Throwable>(null);
225
226		/**
227	<	* Initialize test to indicate that no thread assertions have failed
227	>	* Records an exception so that it can be rethrown later in the test
228	>	* harness thread, triggering a test case failure.  Only the first
229	>	* failure is recorded; subsequent calls to this method from within
230	>	* the same test have no effect.
231		*/
232	<	public void setUp() {
232	>	public void threadRecordFailure(Throwable t) {
233	>	threadFailure.compareAndSet(null, t);
234	>	}
235	>
236	>	public void setUp() {
237		setDelays();
91	–	threadFailed = false;
238		}
239
240		/**
241	<	* Trigger test case failure if any thread assertions have failed
241	>	* Triggers test case failure if any thread assertions have failed,
242	>	* by rethrowing, in the test harness thread, any exception recorded
243	>	* earlier by threadRecordFailure.
244		*/
245	<	public void tearDown() {
246	<	assertFalse(threadFailed);
245	>	public void tearDown() throws Exception {
246	>	Throwable t = threadFailure.get();
247	>	if (t != null) {
248	>	if (t instanceof Error)
249	>	throw (Error) t;
250	>	else if (t instanceof RuntimeException)
251	>	throw (RuntimeException) t;
252	>	else if (t instanceof Exception)
253	>	throw (Exception) t;
254	>	else
255	>	throw new AssertionError(t);
256	>	}
257		}
258
259	+	/**
260	+	* Just like fail(reason), but additionally recording (using
261	+	* threadRecordFailure) any AssertionError thrown, so that the current
262	+	* testcase will fail.
263	+	*/
264		public void threadFail(String reason) {
265	<	threadFailed = true;
266	<	fail(reason);
265	>	try {
266	>	fail(reason);
267	>	} catch (Throwable t) {
268	>	threadRecordFailure(t);
269	>	fail(reason);
270	>	}
271		}
272
273	+	/**
274	+	* Just like assertTrue(b), but additionally recording (using
275	+	* threadRecordFailure) any AssertionError thrown, so that the current
276	+	* testcase will fail.
277	+	*/
278		public void threadAssertTrue(boolean b) {
279	<	if (!b) {
108	<	threadFailed = true;
279	>	try {
280		assertTrue(b);
281	+	} catch (AssertionError t) {
282	+	threadRecordFailure(t);
283	+	throw t;
284		}
285		}
286	+
287	+	/**
288	+	* Just like assertFalse(b), but additionally recording (using
289	+	* threadRecordFailure) any AssertionError thrown, so that the
290	+	* current testcase will fail.
291	+	*/
292		public void threadAssertFalse(boolean b) {
293	<	if (b) {
114	<	threadFailed = true;
293	>	try {
294		assertFalse(b);
295	+	} catch (AssertionError t) {
296	+	threadRecordFailure(t);
297	+	throw t;
298		}
299		}
300	+
301	+	/**
302	+	* Just like assertNull(x), but additionally recording (using
303	+	* threadRecordFailure) any AssertionError thrown, so that the
304	+	* current testcase will fail.
305	+	*/
306		public void threadAssertNull(Object x) {
307	<	if (x != null) {
120	<	threadFailed = true;
307	>	try {
308		assertNull(x);
309	+	} catch (AssertionError t) {
310	+	threadRecordFailure(t);
311	+	throw t;
312		}
313		}
314	+
315	+	/**
316	+	* Just like assertEquals(x, y), but additionally recording (using
317	+	* threadRecordFailure) any AssertionError thrown, so that the
318	+	* current testcase will fail.
319	+	*/
320		public void threadAssertEquals(long x, long y) {
321	<	if (x != y) {
126	<	threadFailed = true;
321	>	try {
322		assertEquals(x, y);
323	+	} catch (AssertionError t) {
324	+	threadRecordFailure(t);
325	+	throw t;
326		}
327		}
328	+
329	+	/**
330	+	* Just like assertEquals(x, y), but additionally recording (using
331	+	* threadRecordFailure) any AssertionError thrown, so that the
332	+	* current testcase will fail.
333	+	*/
334		public void threadAssertEquals(Object x, Object y) {
335	<	if (x != y && (x == null || !x.equals(y))) {
132	<	threadFailed = true;
335	>	try {
336		assertEquals(x, y);
337	+	} catch (AssertionError t) {
338	+	threadRecordFailure(t);
339	+	throw t;
340	+	}
341	+	}
342	+
343	+	/**
344	+	* Just like assertSame(x, y), but additionally recording (using
345	+	* threadRecordFailure) any AssertionError thrown, so that the
346	+	* current testcase will fail.
347	+	*/
348	+	public void threadAssertSame(Object x, Object y) {
349	+	try {
350	+	assertSame(x, y);
351	+	} catch (AssertionError t) {
352	+	threadRecordFailure(t);
353	+	throw t;
354		}
355		}
356
357	+	/**
358	+	* Calls threadFail with message "should throw exception".
359	+	*/
360		public void threadShouldThrow() {
361	<	threadFailed = true;
139	<	fail("should throw exception");
361	>	threadFail("should throw exception");
362		}
363
364	<	public void threadUnexpectedException() {
365	<	threadFailed = true;
366	<	fail("Unexpected exception");
364	>	/**
365	>	* Calls threadFail with message "should throw" + exceptionName.
366	>	*/
367	>	public void threadShouldThrow(String exceptionName) {
368	>	threadFail("should throw " + exceptionName);
369		}
370
371	+	/**
372	+	* Calls threadFail with message "Unexpected exception" + ex.
373	+	*/
374	+	public void threadUnexpectedException(Throwable t) {
375	+	threadRecordFailure(t);
376	+	t.printStackTrace();
377	+	// Rethrow, wrapping in an AssertionError if necessary
378	+	if (t instanceof RuntimeException)
379	+	throw (RuntimeException) t;
380	+	else if (t instanceof Error)
381	+	throw (Error) t;
382	+	else {
383	+	AssertionError ae = new AssertionError("unexpected exception: " + t);
384	+	t.initCause(t);
385	+	throw ae;
386	+	}
387	+	}
388
389		/**
390	<	* Wait out termination of a thread pool or fail doing so
390	>	* Waits out termination of a thread pool or fails doing so.
391		*/
392		public void joinPool(ExecutorService exec) {
393		try {
394		exec.shutdown();
395	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
396	<	} catch(InterruptedException ie) {
397	<	fail("Unexpected exception");
395	>	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
396	>	} catch (SecurityException ok) {
397	>	// Allowed in case test doesn't have privs
398	>	} catch (InterruptedException ie) {
399	>	fail("Unexpected InterruptedException");
400		}
401		}
402
403	<
403	>
404	>	/**
405	>	* Fails with message "should throw exception".
406	>	*/
407		public void shouldThrow() {
408		fail("Should throw exception");
409		}
410
411	<	public void unexpectedException() {
412	<	fail("Unexpected exception");
411	>	/**
412	>	* Fails with message "should throw " + exceptionName.
413	>	*/
414	>	public void shouldThrow(String exceptionName) {
415	>	fail("Should throw " + exceptionName);
416	>	}
417	>
418	>	/**
419	>	* Fails with message "Unexpected exception: " + ex.
420	>	*/
421	>	public void unexpectedException(Throwable ex) {
422	>	ex.printStackTrace();
423	>	fail("Unexpected exception: " + ex);
424		}
425
426
#	Line 174 | Line 431 | public class JSR166TestCase extends Test
431
432		// Some convenient Integer constants
433
434	<	public static final Integer zero = new Integer(0);
435	<	public static final Integer one = new Integer(1);
436	<	public static final Integer two = new Integer(2);
437	<	public static final Integer three  = new Integer(3);
434	>	public static final Integer zero  = new Integer(0);
435	>	public static final Integer one   = new Integer(1);
436	>	public static final Integer two   = new Integer(2);
437	>	public static final Integer three = new Integer(3);
438		public static final Integer four  = new Integer(4);
439		public static final Integer five  = new Integer(5);
440	<	public static final Integer six = new Integer(6);
440	>	public static final Integer six   = new Integer(6);
441		public static final Integer seven = new Integer(7);
442		public static final Integer eight = new Integer(8);
443	<	public static final Integer nine = new Integer(9);
443	>	public static final Integer nine  = new Integer(9);
444		public static final Integer m1  = new Integer(-1);
445		public static final Integer m2  = new Integer(-2);
446		public static final Integer m3  = new Integer(-3);
447	<	public static final Integer m4 = new Integer(-4);
448	<	public static final Integer m5 = new Integer(-5);
447	>	public static final Integer m4  = new Integer(-4);
448	>	public static final Integer m5  = new Integer(-5);
449	>	public static final Integer m6  = new Integer(-6);
450		public static final Integer m10 = new Integer(-10);
451
452
453	<	// Some convenient Runnable classes
453	>	/**
454	>	* Runs Runnable r with a security policy that permits precisely
455	>	* the specified permissions.  If there is no current security
456	>	* manager, the runnable is run twice, both with and without a
457	>	* security manager.  We require that any security manager permit
458	>	* getPolicy/setPolicy.
459	>	*/
460	>	public void runWithPermissions(Runnable r, Permission... permissions) {
461	>	SecurityManager sm = System.getSecurityManager();
462	>	if (sm == null) {
463	>	r.run();
464	>	Policy savedPolicy = Policy.getPolicy();
465	>	try {
466	>	Policy.setPolicy(permissivePolicy());
467	>	System.setSecurityManager(new SecurityManager());
468	>	runWithPermissions(r, permissions);
469	>	} finally {
470	>	System.setSecurityManager(null);
471	>	Policy.setPolicy(savedPolicy);
472	>	}
473	>	} else {
474	>	Policy savedPolicy = Policy.getPolicy();
475	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
476	>	Policy.setPolicy(policy);
477
478	<	public static class NoOpRunnable implements Runnable {
479	<	public void run() {}
478	>	try {
479	>	r.run();
480	>	} finally {
481	>	policy.addPermission(new SecurityPermission("setPolicy"));
482	>	Policy.setPolicy(savedPolicy);
483	>	}
484	>	}
485		}
486
487	<	public static class NoOpCallable implements Callable {
488	<	public Object call() { return Boolean.TRUE; }
487	>	/**
488	>	* Runs a runnable without any permissions.
489	>	*/
490	>	public void runWithoutPermissions(Runnable r) {
491	>	runWithPermissions(r);
492		}
493
494	<	public class ShortRunnable implements Runnable {
495	<	public void run() {
494	>	/**
495	>	* A security policy where new permissions can be dynamically added
496	>	* or all cleared.
497	>	*/
498	>	public static class AdjustablePolicy extends java.security.Policy {
499	>	Permissions perms = new Permissions();
500	>	AdjustablePolicy(Permission... permissions) {
501	>	for (Permission permission : permissions)
502	>	perms.add(permission);
503	>	}
504	>	void addPermission(Permission perm) { perms.add(perm); }
505	>	void clearPermissions() { perms = new Permissions(); }
506	>	public PermissionCollection getPermissions(CodeSource cs) {
507	>	return perms;
508	>	}
509	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
510	>	return perms;
511	>	}
512	>	public boolean implies(ProtectionDomain pd, Permission p) {
513	>	return perms.implies(p);
514	>	}
515	>	public void refresh() {}
516	>	}
517	>
518	>	/**
519	>	* Returns a policy containing all the permissions we ever need.
520	>	*/
521	>	public static Policy permissivePolicy() {
522	>	return new AdjustablePolicy
523	>	// Permissions j.u.c. needs directly
524	>	(new RuntimePermission("modifyThread"),
525	>	new RuntimePermission("getClassLoader"),
526	>	new RuntimePermission("setContextClassLoader"),
527	>	// Permissions needed to change permissions!
528	>	new SecurityPermission("getPolicy"),
529	>	new SecurityPermission("setPolicy"),
530	>	new RuntimePermission("setSecurityManager"),
531	>	// Permissions needed by the junit test harness
532	>	new RuntimePermission("accessDeclaredMembers"),
533	>	new PropertyPermission("*", "read"),
534	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
535	>	}
536	>
537	>	/**
538	>	* Sleep until the timeout has elapsed, or interrupted.
539	>	* Does <em>NOT</em> throw InterruptedException.
540	>	*/
541	>	void sleepTillInterrupted(long timeoutMillis) {
542	>	try {
543	>	Thread.sleep(timeoutMillis);
544	>	} catch (InterruptedException wakeup) {}
545	>	}
546	>
547	>	/**
548	>	* Returns a new started Thread running the given runnable.
549	>	*/
550	>	Thread newStartedThread(Runnable runnable) {
551	>	Thread t = new Thread(runnable);
552	>	t.start();
553	>	return t;
554	>	}
555	>
556	>	// Some convenient Runnable classes
557	>
558	>	public abstract class CheckedRunnable implements Runnable {
559	>	protected abstract void realRun() throws Throwable;
560	>
561	>	public final void run() {
562		try {
563	<	Thread.sleep(SHORT_DELAY_MS);
563	>	realRun();
564	>	} catch (Throwable t) {
565	>	threadUnexpectedException(t);
566		}
567	<	catch(Exception e) {
568	<	threadUnexpectedException();
567	>	}
568	>	}
569	>
570	>	public abstract class RunnableShouldThrow implements Runnable {
571	>	protected abstract void realRun() throws Throwable;
572	>
573	>	final Class<?> exceptionClass;
574	>
575	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
576	>	this.exceptionClass = exceptionClass;
577	>	}
578	>
579	>	public final void run() {
580	>	try {
581	>	realRun();
582	>	threadShouldThrow(exceptionClass.getSimpleName());
583	>	} catch (Throwable t) {
584	>	if (! exceptionClass.isInstance(t))
585	>	threadUnexpectedException(t);
586		}
587		}
588		}
589
590	<	public class ShortInterruptedRunnable implements Runnable {
591	<	public void run() {
590	>	public abstract class ThreadShouldThrow extends Thread {
591	>	protected abstract void realRun() throws Throwable;
592	>
593	>	final Class<?> exceptionClass;
594	>
595	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
596	>	this.exceptionClass = exceptionClass;
597	>	}
598	>
599	>	public final void run() {
600		try {
601	<	Thread.sleep(SHORT_DELAY_MS);
602	<	threadShouldThrow();
601	>	realRun();
602	>	threadShouldThrow(exceptionClass.getSimpleName());
603	>	} catch (Throwable t) {
604	>	if (! exceptionClass.isInstance(t))
605	>	threadUnexpectedException(t);
606		}
607	<	catch(InterruptedException success) {
607	>	}
608	>	}
609	>
610	>	public abstract class CheckedInterruptedRunnable implements Runnable {
611	>	protected abstract void realRun() throws Throwable;
612	>
613	>	public final void run() {
614	>	try {
615	>	realRun();
616	>	threadShouldThrow("InterruptedException");
617	>	} catch (InterruptedException success) {
618	>	} catch (Throwable t) {
619	>	threadUnexpectedException(t);
620		}
621		}
622		}
623
624	<	public class SmallRunnable implements Runnable {
625	<	public void run() {
624	>	public abstract class CheckedCallable<T> implements Callable<T> {
625	>	protected abstract T realCall() throws Throwable;
626	>
627	>	public final T call() {
628		try {
629	<	Thread.sleep(SMALL_DELAY_MS);
629	>	return realCall();
630	>	} catch (Throwable t) {
631	>	threadUnexpectedException(t);
632	>	return null;
633		}
634	<	catch(Exception e) {
635	<	threadUnexpectedException();
634	>	}
635	>	}
636	>
637	>	public abstract class CheckedInterruptedCallable<T>
638	>	implements Callable<T> {
639	>	protected abstract T realCall() throws Throwable;
640	>
641	>	public final T call() {
642	>	try {
643	>	T result = realCall();
644	>	threadShouldThrow("InterruptedException");
645	>	return result;
646	>	} catch (InterruptedException success) {
647	>	} catch (Throwable t) {
648	>	threadUnexpectedException(t);
649		}
650	+	return null;
651		}
652		}
653
654	<	public class SmallCallable implements Callable {
655	<	public Object call() {
654	>	public static class NoOpRunnable implements Runnable {
655	>	public void run() {}
656	>	}
657	>
658	>	public static class NoOpCallable implements Callable {
659	>	public Object call() { return Boolean.TRUE; }
660	>	}
661	>
662	>	public static final String TEST_STRING = "a test string";
663	>
664	>	public static class StringTask implements Callable<String> {
665	>	public String call() { return TEST_STRING; }
666	>	}
667	>
668	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
669	>	return new CheckedCallable<String>() {
670	>	public String realCall() {
671	>	try {
672	>	latch.await();
673	>	} catch (InterruptedException quittingTime) {}
674	>	return TEST_STRING;
675	>	}};
676	>	}
677	>
678	>	public static class NPETask implements Callable<String> {
679	>	public String call() { throw new NullPointerException(); }
680	>	}
681	>
682	>	public static class CallableOne implements Callable<Integer> {
683	>	public Integer call() { return one; }
684	>	}
685	>
686	>	public class ShortRunnable extends CheckedRunnable {
687	>	protected void realRun() throws Throwable {
688	>	Thread.sleep(SHORT_DELAY_MS);
689	>	}
690	>	}
691	>
692	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
693	>	protected void realRun() throws InterruptedException {
694	>	Thread.sleep(SHORT_DELAY_MS);
695	>	}
696	>	}
697	>
698	>	public class SmallRunnable extends CheckedRunnable {
699	>	protected void realRun() throws Throwable {
700	>	Thread.sleep(SMALL_DELAY_MS);
701	>	}
702	>	}
703	>
704	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
705	>	protected void realRun() {
706		try {
707		Thread.sleep(SMALL_DELAY_MS);
708	<	}
709	<	catch(Exception e) {
710	<	threadUnexpectedException();
711	<	}
708	>	} catch (InterruptedException ok) {}
709	>	}
710	>	}
711	>
712	>	public class SmallCallable extends CheckedCallable {
713	>	protected Object realCall() throws InterruptedException {
714	>	Thread.sleep(SMALL_DELAY_MS);
715		return Boolean.TRUE;
716		}
717		}
718
719	<	public class SmallInterruptedRunnable implements Runnable {
719	>	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
720	>	protected void realRun() throws InterruptedException {
721	>	Thread.sleep(SMALL_DELAY_MS);
722	>	}
723	>	}
724	>
725	>	public class MediumRunnable extends CheckedRunnable {
726	>	protected void realRun() throws Throwable {
727	>	Thread.sleep(MEDIUM_DELAY_MS);
728	>	}
729	>	}
730	>
731	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
732	>	protected void realRun() throws InterruptedException {
733	>	Thread.sleep(MEDIUM_DELAY_MS);
734	>	}
735	>	}
736	>
737	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
738	>	protected void realRun() {
739	>	try {
740	>	Thread.sleep(MEDIUM_DELAY_MS);
741	>	} catch (InterruptedException ok) {}
742	>	}
743	>	}
744	>
745	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
746	>	protected void realRun() {
747	>	try {
748	>	Thread.sleep(LONG_DELAY_MS);
749	>	} catch (InterruptedException ok) {}
750	>	}
751	>	}
752	>
753	>	/**
754	>	* For use as ThreadFactory in constructors
755	>	*/
756	>	public static class SimpleThreadFactory implements ThreadFactory {
757	>	public Thread newThread(Runnable r) {
758	>	return new Thread(r);
759	>	}
760	>	}
761	>
762	>	public static class TrackedShortRunnable implements Runnable {
763	>	public volatile boolean done = false;
764		public void run() {
765		try {
766		Thread.sleep(SMALL_DELAY_MS);
767	<	threadShouldThrow();
768	<	}
256	<	catch(InterruptedException success) {
257	<	}
767	>	done = true;
768	>	} catch (InterruptedException ok) {}
769		}
770		}
771
772	<
773	<	public class MediumRunnable implements Runnable {
772	>	public static class TrackedMediumRunnable implements Runnable {
773	>	public volatile boolean done = false;
774		public void run() {
775		try {
776		Thread.sleep(MEDIUM_DELAY_MS);
777	<	}
778	<	catch(Exception e) {
268	<	threadUnexpectedException();
269	<	}
777	>	done = true;
778	>	} catch (InterruptedException ok) {}
779		}
780		}
781
782	<	public class MediumInterruptedRunnable implements Runnable {
782	>	public static class TrackedLongRunnable implements Runnable {
783	>	public volatile boolean done = false;
784		public void run() {
785		try {
786	<	Thread.sleep(MEDIUM_DELAY_MS);
787	<	threadShouldThrow();
788	<	}
279	<	catch(InterruptedException success) {
280	<	}
786	>	Thread.sleep(LONG_DELAY_MS);
787	>	done = true;
788	>	} catch (InterruptedException ok) {}
789		}
790		}
791
792	<	public class MediumPossiblyInterruptedRunnable implements Runnable {
792	>	public static class TrackedNoOpRunnable implements Runnable {
793	>	public volatile boolean done = false;
794		public void run() {
795	+	done = true;
796	+	}
797	+	}
798	+
799	+	public static class TrackedCallable implements Callable {
800	+	public volatile boolean done = false;
801	+	public Object call() {
802		try {
803	<	Thread.sleep(MEDIUM_DELAY_MS);
803	>	Thread.sleep(SMALL_DELAY_MS);
804	>	done = true;
805	>	} catch (InterruptedException ok) {}
806	>	return Boolean.TRUE;
807	>	}
808	>	}
809	>
810	>	/**
811	>	* Analog of CheckedRunnable for RecursiveAction
812	>	*/
813	>	public abstract class CheckedRecursiveAction extends RecursiveAction {
814	>	protected abstract void realCompute() throws Throwable;
815	>
816	>	public final void compute() {
817	>	try {
818	>	realCompute();
819	>	} catch (Throwable t) {
820	>	threadUnexpectedException(t);
821		}
822	<	catch(InterruptedException success) {
822	>	}
823	>	}
824	>
825	>	/**
826	>	* Analog of CheckedCallable for RecursiveTask
827	>	*/
828	>	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
829	>	protected abstract T realCompute() throws Throwable;
830	>
831	>	public final T compute() {
832	>	try {
833	>	return realCompute();
834	>	} catch (Throwable t) {
835	>	threadUnexpectedException(t);
836	>	return null;
837		}
838		}
839		}
840	<
840	>
841	>	/**
842	>	* For use as RejectedExecutionHandler in constructors
843	>	*/
844	>	public static class NoOpREHandler implements RejectedExecutionHandler {
845	>	public void rejectedExecution(Runnable r,
846	>	ThreadPoolExecutor executor) {}
847	>	}
848	>
849		}

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