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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.16 by dl, Wed Jan 7 01:02:17 2004 UTC vs.
Revision 1.53 by jsr166, Thu Sep 16 00:52:49 2010 UTC

#	Line 2 | Line 2
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.
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	<	import java.security.*;
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,
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 doe not otherwise arrange).  The rules for creating such
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 <tt>
46	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
47	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
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 <tt> joinPool</tt> 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>
#	Line 63 | Line 70 | import java.security.*;
70		* "normal" behaviors differ significantly. And sometimes testcases
71		* cover multiple methods when they cannot be tested in
72		* isolation.</li>
73	<	*
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
#	Line 80 | Line 87 | import java.security.*;
87		* any particular package to simplify things for people integrating
88		* them in TCK test suites.</li>
89		*
90	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
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) {
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)
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);
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 ( ) {
122	>	*/
123	>	public static Test suite() {
124		TestSuite suite = new TestSuite("JSR166 Unit Tests");
125	<
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(AtomicBooleanTest.class));
139	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
140	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
141	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
142	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
143	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
144	<	suite.addTest(new TestSuite(AtomicLongTest.class));
145	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
146	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
147	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
148	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
149	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.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));
#	Line 138 | Line 174 | public class JSR166TestCase extends Test
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	<
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
#	Line 157 | Line 199 | public class JSR166TestCase extends Test
199
200
201		/**
202	<	* Return the shortest timed delay. This could
202	>	* Returns the shortest timed delay. This could
203		* be reimplemented to use for example a Property.
204	<	*/
204	>	*/
205		protected long getShortDelay() {
206	<	return 100;
206	>	return 50;
207		}
208
209
210		/**
211	<	* Set delays as multiples of 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	<	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();
188	–	threadFailed = false;
238		}
239
240		/**
241	<	* Trigger test case failure if any thread assertions have failed
242	<	*/
243	<	public void tearDown() {
244	<	assertFalse(threadFailed);
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() 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	<	* Fail, also setting status to indicate current testcase should fail
261	<	*/
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	<	* If expression not true, set status to indicate current testcase
275	<	* should fail
276	<	*/
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) {
212	<	threadFailed = true;
279	>	try {
280		assertTrue(b);
281	+	} catch (AssertionError t) {
282	+	threadRecordFailure(t);
283	+	throw t;
284		}
285		}
286
287		/**
288	<	* If expression not false, set status to indicate current testcase
289	<	* should fail
290	<	*/
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) {
223	<	threadFailed = true;
293	>	try {
294		assertFalse(b);
295	+	} catch (AssertionError t) {
296	+	threadRecordFailure(t);
297	+	throw t;
298		}
299		}
300
301		/**
302	<	* If argument not null, set status to indicate current testcase
303	<	* should fail
304	<	*/
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) {
234	<	threadFailed = true;
307	>	try {
308		assertNull(x);
309	+	} catch (AssertionError t) {
310	+	threadRecordFailure(t);
311	+	throw t;
312		}
313		}
314
315		/**
316	<	* If arguments not equal, set status to indicate current testcase
317	<	* should fail
318	<	*/
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) {
245	<	threadFailed = true;
321	>	try {
322		assertEquals(x, y);
323	+	} catch (AssertionError t) {
324	+	threadRecordFailure(t);
325	+	throw t;
326		}
327		}
328
329		/**
330	<	* If arguments not equal, set status to indicate current testcase
331	<	* should fail
332	<	*/
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))) {
256	<	threadFailed = true;
335	>	try {
336		assertEquals(x, y);
337	+	} catch (AssertionError t) {
338	+	threadRecordFailure(t);
339	+	throw t;
340		}
341		}
342
343		/**
344	<	* threadFail with message "should throw exception"
345	<	*/
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;
266	<	fail("should throw exception");
361	>	threadFail("should throw exception");
362		}
363
364		/**
365	<	* threadFail with message "Unexpected exception"
365	>	* Calls threadFail with message "should throw" + exceptionName.
366		*/
367	<	public void threadUnexpectedException() {
368	<	threadFailed = true;
274	<	fail("Unexpected exception");
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
404		/**
405	<	* fail with message "should throw exception"
406	<	*/
405	>	* Fails with message "should throw exception".
406	>	*/
407		public void shouldThrow() {
408		fail("Should throw exception");
409		}
410
411		/**
412	<	* fail with message "Unexpected exception"
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() {
422	<	fail("Unexpected exception");
421	>	public void unexpectedException(Throwable ex) {
422	>	ex.printStackTrace();
423	>	fail("Unexpected exception: " + ex);
424		}
425
426
427		/**
428		* The number of elements to place in collections, arrays, etc.
429		*/
430	<	static final int SIZE = 20;
430	>	public static final int SIZE = 20;
431
432		// Some convenient Integer constants
433
434	<	static final Integer zero = new Integer(0);
435	<	static final Integer one = new Integer(1);
436	<	static final Integer two = new Integer(2);
437	<	static final Integer three  = new Integer(3);
438	<	static final Integer four  = new Integer(4);
439	<	static final Integer five  = new Integer(5);
440	<	static final Integer six = new Integer(6);
441	<	static final Integer seven = new Integer(7);
442	<	static final Integer eight = new Integer(8);
443	<	static final Integer nine = new Integer(9);
444	<	static final Integer m1  = new Integer(-1);
445	<	static final Integer m2  = new Integer(-2);
446	<	static final Integer m3  = new Integer(-3);
447	<	static final Integer m4 = new Integer(-4);
448	<	static final Integer m5 = new Integer(-5);
449	<	static final Integer m10 = new Integer(-10);
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);
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);
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);
449	>	public static final Integer m6  = new Integer(-6);
450	>	public static final Integer m10 = new Integer(-10);
451	>
452	>
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	>	try {
479	>	r.run();
480	>	} finally {
481	>	policy.addPermission(new SecurityPermission("setPolicy"));
482	>	Policy.setPolicy(savedPolicy);
483	>	}
484	>	}
485	>	}
486
487	+	/**
488	+	* Runs a runnable without any permissions.
489	+	*/
490	+	public void runWithoutPermissions(Runnable r) {
491	+	runWithPermissions(r);
492	+	}
493
494		/**
495		* A security policy where new permissions can be dynamically added
496		* or all cleared.
497		*/
498	<	static class AdjustablePolicy extends java.security.Policy {
498	>	public static class AdjustablePolicy extends java.security.Policy {
499		Permissions perms = new Permissions();
500	<	AdjustablePolicy() { }
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() {}
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	<	// Some convenient Runnable classes
538	<
539	<	static class NoOpRunnable implements Runnable {
540	<	public void run() {}
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	<	static class NoOpCallable implements Callable {
548	<	public Object call() { return Boolean.TRUE; }
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	<	static final String TEST_STRING = "a test string";
556	>	// Some convenient Runnable classes
557
558	<	static class StringTask implements Callable<String> {
559	<	public String call() { return TEST_STRING; }
367	<	}
558	>	public abstract class CheckedRunnable implements Runnable {
559	>	protected abstract void realRun() throws Throwable;
560
561	<	static class NPETask implements Callable<String> {
562	<	public String call() { throw new NullPointerException(); }
561	>	public final void run() {
562	>	try {
563	>	realRun();
564	>	} catch (Throwable t) {
565	>	threadUnexpectedException(t);
566	>	}
567	>	}
568		}
569
570	<	static class CallableOne implements Callable<Integer> {
571	<	public Integer call() { return one; }
375	<	}
570	>	public abstract class RunnableShouldThrow implements Runnable {
571	>	protected abstract void realRun() throws Throwable;
572
573	<	class ShortRunnable implements Runnable {
574	<	public void run() {
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	<	Thread.sleep(SHORT_DELAY_MS);
582	<	}
583	<	catch(Exception e) {
584	<	threadUnexpectedException();
581	>	realRun();
582	>	threadShouldThrow(exceptionClass.getSimpleName());
583	>	} catch (Throwable t) {
584	>	if (! exceptionClass.isInstance(t))
585	>	threadUnexpectedException(t);
586		}
587		}
588		}
589
590	<	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();
603	<	}
604	<	catch(InterruptedException success) {
601	>	realRun();
602	>	threadShouldThrow(exceptionClass.getSimpleName());
603	>	} catch (Throwable t) {
604	>	if (! exceptionClass.isInstance(t))
605	>	threadUnexpectedException(t);
606		}
607		}
608		}
609
610	<	class SmallRunnable implements Runnable {
611	<	public void run() {
610	>	public abstract class CheckedInterruptedRunnable implements Runnable {
611	>	protected abstract void realRun() throws Throwable;
612	>
613	>	public final void run() {
614		try {
615	<	Thread.sleep(SMALL_DELAY_MS);
616	<	}
617	<	catch(Exception e) {
618	<	threadUnexpectedException();
615	>	realRun();
616	>	threadShouldThrow("InterruptedException");
617	>	} catch (InterruptedException success) {
618	>	} catch (Throwable t) {
619	>	threadUnexpectedException(t);
620		}
621		}
622		}
623
624	<	class SmallPossiblyInterruptedRunnable 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);
630	<	}
631	<	catch(Exception e) {
629	>	return realCall();
630	>	} catch (Throwable t) {
631	>	threadUnexpectedException(t);
632	>	return null;
633		}
634		}
635		}
636
637	<	class SmallCallable implements Callable {
638	<	public Object call() {
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	<	Thread.sleep(SMALL_DELAY_MS);
643	>	T result = realCall();
644	>	threadShouldThrow("InterruptedException");
645	>	return result;
646	>	} catch (InterruptedException success) {
647	>	} catch (Throwable t) {
648	>	threadUnexpectedException(t);
649		}
650	<	catch(Exception e) {
426	<	threadUnexpectedException();
427	<	}
428	<	return Boolean.TRUE;
650	>	return null;
651		}
652		}
653
654	<	class SmallInterruptedRunnable implements Runnable {
655	<	public void run() {
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	<	threadShouldThrow();
437	<	}
438	<	catch(InterruptedException success) {
439	<	}
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	<	class MediumRunnable implements Runnable {
720	<	public void run() {
721	<	try {
447	<	Thread.sleep(MEDIUM_DELAY_MS);
448	<	}
449	<	catch(Exception e) {
450	<	threadUnexpectedException();
451	<	}
719	>	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
720	>	protected void realRun() throws InterruptedException {
721	>	Thread.sleep(SMALL_DELAY_MS);
722		}
723		}
724
725	<	class MediumInterruptedRunnable implements Runnable {
726	<	public void run() {
727	<	try {
458	<	Thread.sleep(MEDIUM_DELAY_MS);
459	<	threadShouldThrow();
460	<	}
461	<	catch(InterruptedException success) {
462	<	}
725	>	public class MediumRunnable extends CheckedRunnable {
726	>	protected void realRun() throws Throwable {
727	>	Thread.sleep(MEDIUM_DELAY_MS);
728		}
729		}
730
731	<	class MediumPossiblyInterruptedRunnable implements Runnable {
732	<	public void run() {
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	<	}
471	<	catch(InterruptedException success) {
472	<	}
741	>	} catch (InterruptedException ok) {}
742		}
743		}
744
745	<	class LongPossiblyInterruptedRunnable implements Runnable {
746	<	public void run() {
745	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
746	>	protected void realRun() {
747		try {
748		Thread.sleep(LONG_DELAY_MS);
749	<	}
481	<	catch(InterruptedException success) {
482	<	}
749	>	} catch (InterruptedException ok) {}
750		}
751		}
752
753		/**
754		* For use as ThreadFactory in constructors
755		*/
756	<	static class SimpleThreadFactory implements ThreadFactory{
757	<	public Thread newThread(Runnable r){
756	>	public static class SimpleThreadFactory implements ThreadFactory {
757	>	public Thread newThread(Runnable r) {
758		return new Thread(r);
759	<	}
759	>	}
760		}
761
762	<	static class TrackedShortRunnable implements Runnable {
763	<	volatile boolean done = false;
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		done = true;
768	<	} catch(Exception e){
502	<	}
768	>	} catch (InterruptedException ok) {}
769		}
770		}
771
772	<	static class TrackedMediumRunnable implements Runnable {
773	<	volatile boolean done = false;
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		done = true;
778	<	} catch(Exception e){
513	<	}
778	>	} catch (InterruptedException ok) {}
779		}
780		}
781
782	<	static class TrackedLongRunnable implements Runnable {
783	<	volatile boolean done = false;
782	>	public static class TrackedLongRunnable implements Runnable {
783	>	public volatile boolean done = false;
784		public void run() {
785		try {
786		Thread.sleep(LONG_DELAY_MS);
787		done = true;
788	<	} catch(Exception e){
524	<	}
788	>	} catch (InterruptedException ok) {}
789		}
790		}
791
792	<	static class TrackedNoOpRunnable implements Runnable {
793	<	volatile boolean done = false;
792	>	public static class TrackedNoOpRunnable implements Runnable {
793	>	public volatile boolean done = false;
794		public void run() {
795		done = true;
796		}
797		}
798
799	<	static class TrackedCallable implements Callable {
800	<	volatile boolean done = false;
799	>	public static class TrackedCallable implements Callable {
800	>	public volatile boolean done = false;
801		public Object call() {
802		try {
803		Thread.sleep(SMALL_DELAY_MS);
804		done = true;
805	<	} catch(Exception e){
542	<	}
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	+	}
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
841		/**
842		* For use as RejectedExecutionHandler in constructors
843		*/
844	<	static class NoOpREHandler implements RejectedExecutionHandler{
845	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
844	>	public static class NoOpREHandler implements RejectedExecutionHandler {
845	>	public void rejectedExecution(Runnable r,
846	>	ThreadPoolExecutor executor) {}
847		}
848	<
555	<
848	>
849		}

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