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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.2 by dl, Sat Sep 20 00:31:57 2003 UTC vs.
Revision 1.54 by jsr166, Fri Sep 17 00:52:36 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 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 indicat 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	<	* Wait out termination of a thread pool or fail doing so
358	>	* Calls threadFail with message "should throw exception".
359	>	*/
360	>	public void threadShouldThrow() {
361	>	threadFail("should throw exception");
362	>	}
363	>
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	>	* 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("ExecutorService did not terminate in a timely manner",
396	>	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
397	>	} catch (SecurityException ok) {
398	>	// Allowed in case test doesn't have privs
399	>	} catch (InterruptedException ie) {
400	>	fail("Unexpected InterruptedException");
401		}
402		}
403
404
405	+	/**
406	+	* Fails with message "should throw exception".
407	+	*/
408	+	public void shouldThrow() {
409	+	fail("Should throw exception");
410	+	}
411	+
412	+	/**
413	+	* Fails with message "should throw " + exceptionName.
414	+	*/
415	+	public void shouldThrow(String exceptionName) {
416	+	fail("Should throw " + exceptionName);
417	+	}
418	+
419	+	/**
420	+	* Fails with message "Unexpected exception: " + ex.
421	+	*/
422	+	public void unexpectedException(Throwable ex) {
423	+	ex.printStackTrace();
424	+	fail("Unexpected exception: " + ex);
425	+	}
426	+
427
428		/**
429		* The number of elements to place in collections, arrays, etc.
#	Line 155 | Line 432 | public class JSR166TestCase extends Test
432
433		// Some convenient Integer constants
434
435	<	public static final Integer zero = new Integer(0);
436	<	public static final Integer one = new Integer(1);
437	<	public static final Integer two = new Integer(2);
438	<	public static final Integer three  = new Integer(3);
435	>	public static final Integer zero  = new Integer(0);
436	>	public static final Integer one   = new Integer(1);
437	>	public static final Integer two   = new Integer(2);
438	>	public static final Integer three = new Integer(3);
439		public static final Integer four  = new Integer(4);
440		public static final Integer five  = new Integer(5);
441	<	public static final Integer six = new Integer(6);
441	>	public static final Integer six   = new Integer(6);
442		public static final Integer seven = new Integer(7);
443		public static final Integer eight = new Integer(8);
444	<	public static final Integer nine = new Integer(9);
444	>	public static final Integer nine  = new Integer(9);
445		public static final Integer m1  = new Integer(-1);
446		public static final Integer m2  = new Integer(-2);
447		public static final Integer m3  = new Integer(-3);
448	<	public static final Integer m4 = new Integer(-4);
449	<	public static final Integer m5 = new Integer(-5);
448	>	public static final Integer m4  = new Integer(-4);
449	>	public static final Integer m5  = new Integer(-5);
450	>	public static final Integer m6  = new Integer(-6);
451		public static final Integer m10 = new Integer(-10);
452
453
454	<	// Some convenient Runnable classes
454	>	/**
455	>	* Runs Runnable r with a security policy that permits precisely
456	>	* the specified permissions.  If there is no current security
457	>	* manager, the runnable is run twice, both with and without a
458	>	* security manager.  We require that any security manager permit
459	>	* getPolicy/setPolicy.
460	>	*/
461	>	public void runWithPermissions(Runnable r, Permission... permissions) {
462	>	SecurityManager sm = System.getSecurityManager();
463	>	if (sm == null) {
464	>	r.run();
465	>	Policy savedPolicy = Policy.getPolicy();
466	>	try {
467	>	Policy.setPolicy(permissivePolicy());
468	>	System.setSecurityManager(new SecurityManager());
469	>	runWithPermissions(r, permissions);
470	>	} finally {
471	>	System.setSecurityManager(null);
472	>	Policy.setPolicy(savedPolicy);
473	>	}
474	>	} else {
475	>	Policy savedPolicy = Policy.getPolicy();
476	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
477	>	Policy.setPolicy(policy);
478
479	<	public static class NoOpRunnable implements Runnable {
480	<	public void run() {}
479	>	try {
480	>	r.run();
481	>	} finally {
482	>	policy.addPermission(new SecurityPermission("setPolicy"));
483	>	Policy.setPolicy(savedPolicy);
484	>	}
485	>	}
486		}
487
488	<	public static class NoOpCallable implements Callable {
489	<	public Object call() { return Boolean.TRUE; }
488	>	/**
489	>	* Runs a runnable without any permissions.
490	>	*/
491	>	public void runWithoutPermissions(Runnable r) {
492	>	runWithPermissions(r);
493		}
494
495	<	public class ShortRunnable implements Runnable {
496	<	public void run() {
495	>	/**
496	>	* A security policy where new permissions can be dynamically added
497	>	* or all cleared.
498	>	*/
499	>	public static class AdjustablePolicy extends java.security.Policy {
500	>	Permissions perms = new Permissions();
501	>	AdjustablePolicy(Permission... permissions) {
502	>	for (Permission permission : permissions)
503	>	perms.add(permission);
504	>	}
505	>	void addPermission(Permission perm) { perms.add(perm); }
506	>	void clearPermissions() { perms = new Permissions(); }
507	>	public PermissionCollection getPermissions(CodeSource cs) {
508	>	return perms;
509	>	}
510	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
511	>	return perms;
512	>	}
513	>	public boolean implies(ProtectionDomain pd, Permission p) {
514	>	return perms.implies(p);
515	>	}
516	>	public void refresh() {}
517	>	}
518	>
519	>	/**
520	>	* Returns a policy containing all the permissions we ever need.
521	>	*/
522	>	public static Policy permissivePolicy() {
523	>	return new AdjustablePolicy
524	>	// Permissions j.u.c. needs directly
525	>	(new RuntimePermission("modifyThread"),
526	>	new RuntimePermission("getClassLoader"),
527	>	new RuntimePermission("setContextClassLoader"),
528	>	// Permissions needed to change permissions!
529	>	new SecurityPermission("getPolicy"),
530	>	new SecurityPermission("setPolicy"),
531	>	new RuntimePermission("setSecurityManager"),
532	>	// Permissions needed by the junit test harness
533	>	new RuntimePermission("accessDeclaredMembers"),
534	>	new PropertyPermission("*", "read"),
535	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
536	>	}
537	>
538	>	/**
539	>	* Sleep until the timeout has elapsed, or interrupted.
540	>	* Does <em>NOT</em> throw InterruptedException.
541	>	*/
542	>	void sleepTillInterrupted(long timeoutMillis) {
543	>	try {
544	>	Thread.sleep(timeoutMillis);
545	>	} catch (InterruptedException wakeup) {}
546	>	}
547	>
548	>	/**
549	>	* Returns a new started Thread running the given runnable.
550	>	*/
551	>	Thread newStartedThread(Runnable runnable) {
552	>	Thread t = new Thread(runnable);
553	>	t.start();
554	>	return t;
555	>	}
556	>
557	>	// Some convenient Runnable classes
558	>
559	>	public abstract class CheckedRunnable implements Runnable {
560	>	protected abstract void realRun() throws Throwable;
561	>
562	>	public final void run() {
563		try {
564	<	Thread.sleep(SHORT_DELAY_MS);
564	>	realRun();
565	>	} catch (Throwable t) {
566	>	threadUnexpectedException(t);
567		}
568	<	catch(Exception e) {
569	<	threadFail("unexpectedException");
568	>	}
569	>	}
570	>
571	>	public abstract class RunnableShouldThrow implements Runnable {
572	>	protected abstract void realRun() throws Throwable;
573	>
574	>	final Class<?> exceptionClass;
575	>
576	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
577	>	this.exceptionClass = exceptionClass;
578	>	}
579	>
580	>	public final void run() {
581	>	try {
582	>	realRun();
583	>	threadShouldThrow(exceptionClass.getSimpleName());
584	>	} catch (Throwable t) {
585	>	if (! exceptionClass.isInstance(t))
586	>	threadUnexpectedException(t);
587		}
588		}
589		}
590
591	<	public class ShortInterruptedRunnable implements Runnable {
592	<	public void run() {
591	>	public abstract class ThreadShouldThrow extends Thread {
592	>	protected abstract void realRun() throws Throwable;
593	>
594	>	final Class<?> exceptionClass;
595	>
596	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
597	>	this.exceptionClass = exceptionClass;
598	>	}
599	>
600	>	public final void run() {
601		try {
602	<	Thread.sleep(SHORT_DELAY_MS);
603	<	threadFail("should throw IE");
602	>	realRun();
603	>	threadShouldThrow(exceptionClass.getSimpleName());
604	>	} catch (Throwable t) {
605	>	if (! exceptionClass.isInstance(t))
606	>	threadUnexpectedException(t);
607		}
608	<	catch(InterruptedException success) {
608	>	}
609	>	}
610	>
611	>	public abstract class CheckedInterruptedRunnable implements Runnable {
612	>	protected abstract void realRun() throws Throwable;
613	>
614	>	public final void run() {
615	>	try {
616	>	realRun();
617	>	threadShouldThrow("InterruptedException");
618	>	} catch (InterruptedException success) {
619	>	} catch (Throwable t) {
620	>	threadUnexpectedException(t);
621		}
622		}
623		}
624
625	<	public class SmallRunnable implements Runnable {
626	<	public void run() {
625	>	public abstract class CheckedCallable<T> implements Callable<T> {
626	>	protected abstract T realCall() throws Throwable;
627	>
628	>	public final T call() {
629		try {
630	<	Thread.sleep(SMALL_DELAY_MS);
630	>	return realCall();
631	>	} catch (Throwable t) {
632	>	threadUnexpectedException(t);
633	>	return null;
634		}
635	<	catch(Exception e) {
636	<	threadFail("unexpectedException");
635	>	}
636	>	}
637	>
638	>	public abstract class CheckedInterruptedCallable<T>
639	>	implements Callable<T> {
640	>	protected abstract T realCall() throws Throwable;
641	>
642	>	public final T call() {
643	>	try {
644	>	T result = realCall();
645	>	threadShouldThrow("InterruptedException");
646	>	return result;
647	>	} catch (InterruptedException success) {
648	>	} catch (Throwable t) {
649	>	threadUnexpectedException(t);
650		}
651	+	return null;
652		}
653		}
654
655	<	public class SmallCallable implements Callable {
656	<	public Object call() {
655	>	public static class NoOpRunnable implements Runnable {
656	>	public void run() {}
657	>	}
658	>
659	>	public static class NoOpCallable implements Callable {
660	>	public Object call() { return Boolean.TRUE; }
661	>	}
662	>
663	>	public static final String TEST_STRING = "a test string";
664	>
665	>	public static class StringTask implements Callable<String> {
666	>	public String call() { return TEST_STRING; }
667	>	}
668	>
669	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
670	>	return new CheckedCallable<String>() {
671	>	public String realCall() {
672	>	try {
673	>	latch.await();
674	>	} catch (InterruptedException quittingTime) {}
675	>	return TEST_STRING;
676	>	}};
677	>	}
678	>
679	>	public static class NPETask implements Callable<String> {
680	>	public String call() { throw new NullPointerException(); }
681	>	}
682	>
683	>	public static class CallableOne implements Callable<Integer> {
684	>	public Integer call() { return one; }
685	>	}
686	>
687	>	public class ShortRunnable extends CheckedRunnable {
688	>	protected void realRun() throws Throwable {
689	>	Thread.sleep(SHORT_DELAY_MS);
690	>	}
691	>	}
692	>
693	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
694	>	protected void realRun() throws InterruptedException {
695	>	Thread.sleep(SHORT_DELAY_MS);
696	>	}
697	>	}
698	>
699	>	public class SmallRunnable extends CheckedRunnable {
700	>	protected void realRun() throws Throwable {
701	>	Thread.sleep(SMALL_DELAY_MS);
702	>	}
703	>	}
704	>
705	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
706	>	protected void realRun() {
707		try {
708		Thread.sleep(SMALL_DELAY_MS);
709	<	}
710	<	catch(Exception e) {
711	<	threadFail("unexpectedException");
712	<	}
709	>	} catch (InterruptedException ok) {}
710	>	}
711	>	}
712	>
713	>	public class SmallCallable extends CheckedCallable {
714	>	protected Object realCall() throws InterruptedException {
715	>	Thread.sleep(SMALL_DELAY_MS);
716		return Boolean.TRUE;
717		}
718		}
719
720	<	public class SmallInterruptedRunnable implements Runnable {
720	>	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
721	>	protected void realRun() throws InterruptedException {
722	>	Thread.sleep(SMALL_DELAY_MS);
723	>	}
724	>	}
725	>
726	>	public class MediumRunnable extends CheckedRunnable {
727	>	protected void realRun() throws Throwable {
728	>	Thread.sleep(MEDIUM_DELAY_MS);
729	>	}
730	>	}
731	>
732	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
733	>	protected void realRun() throws InterruptedException {
734	>	Thread.sleep(MEDIUM_DELAY_MS);
735	>	}
736	>	}
737	>
738	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
739	>	protected void realRun() {
740	>	try {
741	>	Thread.sleep(MEDIUM_DELAY_MS);
742	>	} catch (InterruptedException ok) {}
743	>	}
744	>	}
745	>
746	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
747	>	protected void realRun() {
748	>	try {
749	>	Thread.sleep(LONG_DELAY_MS);
750	>	} catch (InterruptedException ok) {}
751	>	}
752	>	}
753	>
754	>	/**
755	>	* For use as ThreadFactory in constructors
756	>	*/
757	>	public static class SimpleThreadFactory implements ThreadFactory {
758	>	public Thread newThread(Runnable r) {
759	>	return new Thread(r);
760	>	}
761	>	}
762	>
763	>	public static class TrackedShortRunnable implements Runnable {
764	>	public volatile boolean done = false;
765		public void run() {
766		try {
767		Thread.sleep(SMALL_DELAY_MS);
768	<	threadFail("should throw IE");
769	<	}
237	<	catch(InterruptedException success) {
238	<	}
768	>	done = true;
769	>	} catch (InterruptedException ok) {}
770		}
771		}
772
773	<
774	<	public class MediumRunnable implements Runnable {
773	>	public static class TrackedMediumRunnable implements Runnable {
774	>	public volatile boolean done = false;
775		public void run() {
776		try {
777		Thread.sleep(MEDIUM_DELAY_MS);
778	<	}
779	<	catch(Exception e) {
249	<	threadFail("unexpectedException");
250	<	}
778	>	done = true;
779	>	} catch (InterruptedException ok) {}
780		}
781		}
782
783	<	public class MediumInterruptedRunnable implements Runnable {
783	>	public static class TrackedLongRunnable implements Runnable {
784	>	public volatile boolean done = false;
785		public void run() {
786		try {
787	<	Thread.sleep(MEDIUM_DELAY_MS);
788	<	threadFail("should throw IE");
789	<	}
260	<	catch(InterruptedException success) {
261	<	}
787	>	Thread.sleep(LONG_DELAY_MS);
788	>	done = true;
789	>	} catch (InterruptedException ok) {}
790		}
791		}
792
793	<	public class MediumPossiblyInterruptedRunnable implements Runnable {
793	>	public static class TrackedNoOpRunnable implements Runnable {
794	>	public volatile boolean done = false;
795		public void run() {
796	+	done = true;
797	+	}
798	+	}
799	+
800	+	public static class TrackedCallable implements Callable {
801	+	public volatile boolean done = false;
802	+	public Object call() {
803		try {
804	<	Thread.sleep(MEDIUM_DELAY_MS);
804	>	Thread.sleep(SMALL_DELAY_MS);
805	>	done = true;
806	>	} catch (InterruptedException ok) {}
807	>	return Boolean.TRUE;
808	>	}
809	>	}
810	>
811	>	/**
812	>	* Analog of CheckedRunnable for RecursiveAction
813	>	*/
814	>	public abstract class CheckedRecursiveAction extends RecursiveAction {
815	>	protected abstract void realCompute() throws Throwable;
816	>
817	>	public final void compute() {
818	>	try {
819	>	realCompute();
820	>	} catch (Throwable t) {
821	>	threadUnexpectedException(t);
822		}
823	<	catch(InterruptedException success) {
823	>	}
824	>	}
825	>
826	>	/**
827	>	* Analog of CheckedCallable for RecursiveTask
828	>	*/
829	>	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
830	>	protected abstract T realCompute() throws Throwable;
831	>
832	>	public final T compute() {
833	>	try {
834	>	return realCompute();
835	>	} catch (Throwable t) {
836	>	threadUnexpectedException(t);
837	>	return null;
838		}
839		}
840		}
841	<
841	>
842	>	/**
843	>	* For use as RejectedExecutionHandler in constructors
844	>	*/
845	>	public static class NoOpREHandler implements RejectedExecutionHandler {
846	>	public void rejectedExecution(Runnable r,
847	>	ThreadPoolExecutor executor) {}
848	>	}
849	>
850		}

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