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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.15 by dl, Mon Dec 29 19:05:40 2003 UTC vs.
Revision 1.55 by jsr166, Mon Sep 20 20:42:37 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) {
103	<	junit.textui.TestRunner.run (suite());
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 ( ) {
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 133 | 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 152 | 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();
183	–	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) {
207	<	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) {
218	<	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) {
229	<	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) {
240	<	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))) {
251	<	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;
261	<	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;
269	<	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("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	<	* fail with message "should throw exception"
407	<	*/
406	>	* Fails with message "should throw exception".
407	>	*/
408		public void shouldThrow() {
409		fail("Should throw exception");
410		}
411
412		/**
413	<	* fail with message "Unexpected exception"
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() {
423	<	fail("Unexpected exception");
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.
430		*/
431	<	static final int SIZE = 20;
431	>	public static final int SIZE = 20;
432
433		// Some convenient Integer constants
434
435	<	static final Integer zero = new Integer(0);
436	<	static final Integer one = new Integer(1);
437	<	static final Integer two = new Integer(2);
438	<	static final Integer three  = new Integer(3);
439	<	static final Integer four  = new Integer(4);
440	<	static final Integer five  = new Integer(5);
441	<	static final Integer six = new Integer(6);
442	<	static final Integer seven = new Integer(7);
443	<	static final Integer eight = new Integer(8);
444	<	static final Integer nine = new Integer(9);
445	<	static final Integer m1  = new Integer(-1);
446	<	static final Integer m2  = new Integer(-2);
447	<	static final Integer m3  = new Integer(-3);
448	<	static final Integer m4 = new Integer(-4);
449	<	static final Integer m5 = new Integer(-5);
450	<	static final Integer m10 = new Integer(-10);
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);
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);
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);
450	>	public static final Integer m6  = new Integer(-6);
451	>	public static final Integer m10 = new Integer(-10);
452	>
453	>
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	>	try {
480	>	r.run();
481	>	} finally {
482	>	policy.addPermission(new SecurityPermission("setPolicy"));
483	>	Policy.setPolicy(savedPolicy);
484	>	}
485	>	}
486	>	}
487
488	+	/**
489	+	* Runs a runnable without any permissions.
490	+	*/
491	+	public void runWithoutPermissions(Runnable r) {
492	+	runWithPermissions(r);
493	+	}
494
495		/**
496		* A security policy where new permissions can be dynamically added
497		* or all cleared.
498		*/
499	<	static class AdjustablePolicy extends java.security.Policy {
499	>	public static class AdjustablePolicy extends java.security.Policy {
500		Permissions perms = new Permissions();
501	<	AdjustablePolicy() { }
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() {}
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	<	// Some convenient Runnable classes
539	<
540	<	static class NoOpRunnable implements Runnable {
541	<	public void run() {}
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	<	static class NoOpCallable implements Callable {
549	<	public Object call() { return Boolean.TRUE; }
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	<	static final String TEST_STRING = "a test string";
557	>	// Some convenient Runnable classes
558
559	<	static class StringTask implements Callable<String> {
560	<	public String call() { return TEST_STRING; }
362	<	}
559	>	public abstract class CheckedRunnable implements Runnable {
560	>	protected abstract void realRun() throws Throwable;
561
562	<	static class NPETask implements Callable<String> {
563	<	public String call() { throw new NullPointerException(); }
562	>	public final void run() {
563	>	try {
564	>	realRun();
565	>	} catch (Throwable t) {
566	>	threadUnexpectedException(t);
567	>	}
568	>	}
569		}
570
571	<	static class CallableOne implements Callable<Integer> {
572	<	public Integer call() { return one; }
370	<	}
571	>	public abstract class RunnableShouldThrow implements Runnable {
572	>	protected abstract void realRun() throws Throwable;
573
574	<	class ShortRunnable implements Runnable {
575	<	public void run() {
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	<	Thread.sleep(SHORT_DELAY_MS);
583	<	}
584	<	catch(Exception e) {
585	<	threadUnexpectedException();
582	>	realRun();
583	>	threadShouldThrow(exceptionClass.getSimpleName());
584	>	} catch (Throwable t) {
585	>	if (! exceptionClass.isInstance(t))
586	>	threadUnexpectedException(t);
587		}
588		}
589		}
590
591	<	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	<	threadShouldThrow();
604	<	}
605	<	catch(InterruptedException success) {
602	>	realRun();
603	>	threadShouldThrow(exceptionClass.getSimpleName());
604	>	} catch (Throwable t) {
605	>	if (! exceptionClass.isInstance(t))
606	>	threadUnexpectedException(t);
607		}
608		}
609		}
610
611	<	class SmallRunnable implements Runnable {
612	<	public void run() {
611	>	public abstract class CheckedInterruptedRunnable implements Runnable {
612	>	protected abstract void realRun() throws Throwable;
613	>
614	>	public final void run() {
615		try {
616	<	Thread.sleep(SMALL_DELAY_MS);
617	<	}
618	<	catch(Exception e) {
619	<	threadUnexpectedException();
616	>	realRun();
617	>	threadShouldThrow("InterruptedException");
618	>	} catch (InterruptedException success) {
619	>	} catch (Throwable t) {
620	>	threadUnexpectedException(t);
621		}
622		}
623		}
624
625	<	class SmallPossiblyInterruptedRunnable 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);
631	<	}
632	<	catch(Exception e) {
630	>	return realCall();
631	>	} catch (Throwable t) {
632	>	threadUnexpectedException(t);
633	>	return null;
634		}
635		}
636		}
637
638	<	class SmallCallable implements Callable {
639	<	public Object call() {
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	<	Thread.sleep(SMALL_DELAY_MS);
644	>	T result = realCall();
645	>	threadShouldThrow("InterruptedException");
646	>	return result;
647	>	} catch (InterruptedException success) {
648	>	} catch (Throwable t) {
649	>	threadUnexpectedException(t);
650		}
651	<	catch(Exception e) {
421	<	threadUnexpectedException();
422	<	}
423	<	return Boolean.TRUE;
651	>	return null;
652		}
653		}
654
655	<	class SmallInterruptedRunnable implements Runnable {
656	<	public void run() {
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	<	threadShouldThrow();
432	<	}
433	<	catch(InterruptedException success) {
434	<	}
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	<	class MediumRunnable implements Runnable {
721	<	public void run() {
722	<	try {
442	<	Thread.sleep(MEDIUM_DELAY_MS);
443	<	}
444	<	catch(Exception e) {
445	<	threadUnexpectedException();
446	<	}
720	>	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
721	>	protected void realRun() throws InterruptedException {
722	>	Thread.sleep(SMALL_DELAY_MS);
723		}
724		}
725
726	<	class MediumInterruptedRunnable implements Runnable {
727	<	public void run() {
728	<	try {
453	<	Thread.sleep(MEDIUM_DELAY_MS);
454	<	threadShouldThrow();
455	<	}
456	<	catch(InterruptedException success) {
457	<	}
726	>	public class MediumRunnable extends CheckedRunnable {
727	>	protected void realRun() throws Throwable {
728	>	Thread.sleep(MEDIUM_DELAY_MS);
729		}
730		}
731
732	<	class MediumPossiblyInterruptedRunnable implements Runnable {
733	<	public void run() {
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	<	}
466	<	catch(InterruptedException success) {
467	<	}
742	>	} catch (InterruptedException ok) {}
743		}
744		}
745
746	<	class LongPossiblyInterruptedRunnable implements Runnable {
747	<	public void run() {
746	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
747	>	protected void realRun() {
748		try {
749		Thread.sleep(LONG_DELAY_MS);
750	<	}
476	<	catch(InterruptedException success) {
477	<	}
750	>	} catch (InterruptedException ok) {}
751		}
752		}
753
754		/**
755		* For use as ThreadFactory in constructors
756		*/
757	<	static class SimpleThreadFactory implements ThreadFactory{
758	<	public Thread newThread(Runnable r){
757	>	public static class SimpleThreadFactory implements ThreadFactory {
758	>	public Thread newThread(Runnable r) {
759		return new Thread(r);
760	<	}
760	>	}
761		}
762
763	<	static class TrackedShortRunnable implements Runnable {
764	<	volatile boolean done = false;
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		done = true;
769	<	} catch(Exception e){
497	<	}
769	>	} catch (InterruptedException ok) {}
770		}
771		}
772
773	<	static class TrackedMediumRunnable implements Runnable {
774	<	volatile boolean done = false;
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		done = true;
779	<	} catch(Exception e){
508	<	}
779	>	} catch (InterruptedException ok) {}
780		}
781		}
782
783	<	static class TrackedLongRunnable implements Runnable {
784	<	volatile boolean done = false;
783	>	public static class TrackedLongRunnable implements Runnable {
784	>	public volatile boolean done = false;
785		public void run() {
786		try {
787		Thread.sleep(LONG_DELAY_MS);
788		done = true;
789	<	} catch(Exception e){
519	<	}
789	>	} catch (InterruptedException ok) {}
790		}
791		}
792
793	<	static class TrackedNoOpRunnable implements Runnable {
794	<	volatile boolean done = false;
793	>	public static class TrackedNoOpRunnable implements Runnable {
794	>	public volatile boolean done = false;
795		public void run() {
796		done = true;
797		}
798		}
799
800	<	static class TrackedCallable implements Callable {
801	<	volatile boolean done = false;
800	>	public static class TrackedCallable implements Callable {
801	>	public volatile boolean done = false;
802		public Object call() {
803		try {
804		Thread.sleep(SMALL_DELAY_MS);
805		done = true;
806	<	} catch(Exception e){
537	<	}
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	+	}
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
842		/**
843		* For use as RejectedExecutionHandler in constructors
844		*/
845	<	static class NoOpREHandler implements RejectedExecutionHandler{
846	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
845	>	public static class NoOpREHandler implements RejectedExecutionHandler {
846	>	public void rejectedExecution(Runnable r,
847	>	ThreadPoolExecutor executor) {}
848		}
849	<
550	<
849	>
850		}

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