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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.5 by dl, Fri Sep 26 15:33:13 2003 UTC vs.
Revision 1.57 by jsr166, Mon Oct 4 05:45:19 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,
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 {@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
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 = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
109	+
110	+	Test s = suite();
111	+	for (int i = 0; i < iters; ++i) {
112	+	junit.textui.TestRunner.run(s);
113	+	System.gc();
114	+	System.runFinalization();
115	+	}
116	+	System.exit(0);
117	+	}
118	+
119	+	/**
120	+	* Collects all JSR166 unit tests as one suite
121	+	*/
122	+	public static Test suite() {
123	+	TestSuite suite = new TestSuite("JSR166 Unit Tests");
124	+
125	+	suite.addTest(ForkJoinPoolTest.suite());
126	+	suite.addTest(ForkJoinTaskTest.suite());
127	+	suite.addTest(RecursiveActionTest.suite());
128	+	suite.addTest(RecursiveTaskTest.suite());
129	+	suite.addTest(LinkedTransferQueueTest.suite());
130	+	suite.addTest(PhaserTest.suite());
131	+	suite.addTest(ThreadLocalRandomTest.suite());
132	+	suite.addTest(AbstractExecutorServiceTest.suite());
133	+	suite.addTest(AbstractQueueTest.suite());
134	+	suite.addTest(AbstractQueuedSynchronizerTest.suite());
135	+	suite.addTest(AbstractQueuedLongSynchronizerTest.suite());
136	+	suite.addTest(ArrayBlockingQueueTest.suite());
137	+	suite.addTest(ArrayDequeTest.suite());
138	+	suite.addTest(AtomicBooleanTest.suite());
139	+	suite.addTest(AtomicIntegerArrayTest.suite());
140	+	suite.addTest(AtomicIntegerFieldUpdaterTest.suite());
141	+	suite.addTest(AtomicIntegerTest.suite());
142	+	suite.addTest(AtomicLongArrayTest.suite());
143	+	suite.addTest(AtomicLongFieldUpdaterTest.suite());
144	+	suite.addTest(AtomicLongTest.suite());
145	+	suite.addTest(AtomicMarkableReferenceTest.suite());
146	+	suite.addTest(AtomicReferenceArrayTest.suite());
147	+	suite.addTest(AtomicReferenceFieldUpdaterTest.suite());
148	+	suite.addTest(AtomicReferenceTest.suite());
149	+	suite.addTest(AtomicStampedReferenceTest.suite());
150	+	suite.addTest(ConcurrentHashMapTest.suite());
151	+	suite.addTest(ConcurrentLinkedDequeTest.suite());
152	+	suite.addTest(ConcurrentLinkedQueueTest.suite());
153	+	suite.addTest(ConcurrentSkipListMapTest.suite());
154	+	suite.addTest(ConcurrentSkipListSubMapTest.suite());
155	+	suite.addTest(ConcurrentSkipListSetTest.suite());
156	+	suite.addTest(ConcurrentSkipListSubSetTest.suite());
157	+	suite.addTest(CopyOnWriteArrayListTest.suite());
158	+	suite.addTest(CopyOnWriteArraySetTest.suite());
159	+	suite.addTest(CountDownLatchTest.suite());
160	+	suite.addTest(CyclicBarrierTest.suite());
161	+	suite.addTest(DelayQueueTest.suite());
162	+	suite.addTest(EntryTest.suite());
163	+	suite.addTest(ExchangerTest.suite());
164	+	suite.addTest(ExecutorsTest.suite());
165	+	suite.addTest(ExecutorCompletionServiceTest.suite());
166	+	suite.addTest(FutureTaskTest.suite());
167	+	suite.addTest(LinkedBlockingDequeTest.suite());
168	+	suite.addTest(LinkedBlockingQueueTest.suite());
169	+	suite.addTest(LinkedListTest.suite());
170	+	suite.addTest(LockSupportTest.suite());
171	+	suite.addTest(PriorityBlockingQueueTest.suite());
172	+	suite.addTest(PriorityQueueTest.suite());
173	+	suite.addTest(ReentrantLockTest.suite());
174	+	suite.addTest(ReentrantReadWriteLockTest.suite());
175	+	suite.addTest(ScheduledExecutorTest.suite());
176	+	suite.addTest(ScheduledExecutorSubclassTest.suite());
177	+	suite.addTest(SemaphoreTest.suite());
178	+	suite.addTest(SynchronousQueueTest.suite());
179	+	suite.addTest(SystemTest.suite());
180	+	suite.addTest(ThreadLocalTest.suite());
181	+	suite.addTest(ThreadPoolExecutorTest.suite());
182	+	suite.addTest(ThreadPoolExecutorSubclassTest.suite());
183	+	suite.addTest(ThreadTest.suite());
184	+	suite.addTest(TimeUnitTest.suite());
185	+	suite.addTest(TreeMapTest.suite());
186	+	suite.addTest(TreeSetTest.suite());
187	+	suite.addTest(TreeSubMapTest.suite());
188	+	suite.addTest(TreeSubSetTest.suite());
189	+
190	+	return suite;
191	+	}
192	+
193
194		public static long SHORT_DELAY_MS;
195		public static long SMALL_DELAY_MS;
#	Line 61 | Line 198 | public class JSR166TestCase extends Test
198
199
200		/**
201	<	* Return the shortest timed delay. This could
202	<	* be reimplmented to use for example a Property.
203	<	*/
201	>	* Returns the shortest timed delay. This could
202	>	* be reimplemented to use for example a Property.
203	>	*/
204		protected long getShortDelay() {
205	<	return 100;
205	>	return 50;
206		}
207
208
209		/**
210	<	* Set delays as multiples of SHORT_DELAY.
210	>	* Sets delays as multiples of SHORT_DELAY.
211		*/
212	<	protected  void setDelays() {
212	>	protected void setDelays() {
213		SHORT_DELAY_MS = getShortDelay();
214	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
214	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
215		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
216	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
216	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
217		}
218
219		/**
220	<	* Flag set true if any threadAssert methods fail
220	>	* The first exception encountered if any threadAssertXXX method fails.
221		*/
222	<	volatile boolean threadFailed;
222	>	private final AtomicReference<Throwable> threadFailure
223	>	= new AtomicReference<Throwable>(null);
224
225		/**
226	<	* Initialize test to indicate that no thread assertions have failed
226	>	* Records an exception so that it can be rethrown later in the test
227	>	* harness thread, triggering a test case failure.  Only the first
228	>	* failure is recorded; subsequent calls to this method from within
229	>	* the same test have no effect.
230		*/
231	<	public void setUp() {
231	>	public void threadRecordFailure(Throwable t) {
232	>	threadFailure.compareAndSet(null, t);
233	>	}
234	>
235	>	public void setUp() {
236		setDelays();
92	–	threadFailed = false;
237		}
238
239		/**
240	<	* Trigger test case failure if any thread assertions have failed
240	>	* Triggers test case failure if any thread assertions have failed,
241	>	* by rethrowing, in the test harness thread, any exception recorded
242	>	* earlier by threadRecordFailure.
243		*/
244	<	public void tearDown() {
245	<	assertFalse(threadFailed);
244	>	public void tearDown() throws Exception {
245	>	Throwable t = threadFailure.get();
246	>	if (t != null) {
247	>	if (t instanceof Error)
248	>	throw (Error) t;
249	>	else if (t instanceof RuntimeException)
250	>	throw (RuntimeException) t;
251	>	else if (t instanceof Exception)
252	>	throw (Exception) t;
253	>	else {
254	>	AssertionFailedError afe =
255	>	new AssertionFailedError(t.toString());
256	>	afe.initCause(t);
257	>	throw afe;
258	>	}
259	>	}
260		}
261
262		/**
263	<	* Fail, also setting status to indicate current testcase should fail
264	<	*/
263	>	* Just like fail(reason), but additionally recording (using
264	>	* threadRecordFailure) any AssertionFailedError thrown, so that
265	>	* the current testcase will fail.
266	>	*/
267		public void threadFail(String reason) {
268	<	threadFailed = true;
269	<	fail(reason);
268	>	try {
269	>	fail(reason);
270	>	} catch (AssertionFailedError t) {
271	>	threadRecordFailure(t);
272	>	fail(reason);
273	>	}
274		}
275
276		/**
277	<	* If expression not true, set status to indicate current testcase
278	<	* should fail
279	<	*/
277	>	* Just like assertTrue(b), but additionally recording (using
278	>	* threadRecordFailure) any AssertionFailedError thrown, so that
279	>	* the current testcase will fail.
280	>	*/
281		public void threadAssertTrue(boolean b) {
282	<	if (!b) {
116	<	threadFailed = true;
282	>	try {
283		assertTrue(b);
284	+	} catch (AssertionFailedError t) {
285	+	threadRecordFailure(t);
286	+	throw t;
287		}
288		}
289
290		/**
291	<	* If expression not false, set status to indicate current testcase
292	<	* should fail
293	<	*/
291	>	* Just like assertFalse(b), but additionally recording (using
292	>	* threadRecordFailure) any AssertionFailedError thrown, so that
293	>	* the current testcase will fail.
294	>	*/
295		public void threadAssertFalse(boolean b) {
296	<	if (b) {
127	<	threadFailed = true;
296	>	try {
297		assertFalse(b);
298	+	} catch (AssertionFailedError t) {
299	+	threadRecordFailure(t);
300	+	throw t;
301		}
302		}
303
304		/**
305	<	* If argument not null, set status to indicate current testcase
306	<	* should fail
307	<	*/
305	>	* Just like assertNull(x), but additionally recording (using
306	>	* threadRecordFailure) any AssertionFailedError thrown, so that
307	>	* the current testcase will fail.
308	>	*/
309		public void threadAssertNull(Object x) {
310	<	if (x != null) {
138	<	threadFailed = true;
310	>	try {
311		assertNull(x);
312	+	} catch (AssertionFailedError t) {
313	+	threadRecordFailure(t);
314	+	throw t;
315		}
316		}
317
318		/**
319	<	* If arguments not equal, set status to indicate current testcase
320	<	* should fail
321	<	*/
319	>	* Just like assertEquals(x, y), but additionally recording (using
320	>	* threadRecordFailure) any AssertionFailedError thrown, so that
321	>	* the current testcase will fail.
322	>	*/
323		public void threadAssertEquals(long x, long y) {
324	<	if (x != y) {
149	<	threadFailed = true;
324	>	try {
325		assertEquals(x, y);
326	+	} catch (AssertionFailedError t) {
327	+	threadRecordFailure(t);
328	+	throw t;
329		}
330		}
331
332		/**
333	<	* If arguments not equal, set status to indicate current testcase
334	<	* should fail
335	<	*/
333	>	* Just like assertEquals(x, y), but additionally recording (using
334	>	* threadRecordFailure) any AssertionFailedError thrown, so that
335	>	* the current testcase will fail.
336	>	*/
337		public void threadAssertEquals(Object x, Object y) {
338	<	if (x != y && (x == null || !x.equals(y))) {
160	<	threadFailed = true;
338	>	try {
339		assertEquals(x, y);
340	+	} catch (AssertionFailedError t) {
341	+	threadRecordFailure(t);
342	+	throw t;
343	+	} catch (Throwable t) {
344	+	threadUnexpectedException(t);
345	+	}
346	+	}
347	+
348	+	/**
349	+	* Just like assertSame(x, y), but additionally recording (using
350	+	* threadRecordFailure) any AssertionFailedError thrown, so that
351	+	* the current testcase will fail.
352	+	*/
353	+	public void threadAssertSame(Object x, Object y) {
354	+	try {
355	+	assertSame(x, y);
356	+	} catch (AssertionFailedError t) {
357	+	threadRecordFailure(t);
358	+	throw t;
359		}
360		}
361
362		/**
363	<	* threadFail with message "should throw exception"
364	<	*/
363	>	* Calls threadFail with message "should throw exception".
364	>	*/
365		public void threadShouldThrow() {
366	<	threadFailed = true;
170	<	fail("should throw exception");
366	>	threadFail("should throw exception");
367		}
368
369		/**
370	<	* threadFail with message "Unexpected exception"
370	>	* Calls threadFail with message "should throw" + exceptionName.
371		*/
372	<	public void threadUnexpectedException() {
373	<	threadFailed = true;
178	<	fail("Unexpected exception");
372	>	public void threadShouldThrow(String exceptionName) {
373	>	threadFail("should throw " + exceptionName);
374		}
375
376	+	/**
377	+	* Records the given exception using {@link #threadRecordFailure},
378	+	* then rethrows the exception, wrapping it in an
379	+	* AssertionFailedError if necessary.
380	+	*/
381	+	public void threadUnexpectedException(Throwable t) {
382	+	threadRecordFailure(t);
383	+	t.printStackTrace();
384	+	if (t instanceof RuntimeException)
385	+	throw (RuntimeException) t;
386	+	else if (t instanceof Error)
387	+	throw (Error) t;
388	+	else {
389	+	AssertionFailedError afe =
390	+	new AssertionFailedError("unexpected exception: " + t);
391	+	t.initCause(t);
392	+	throw afe;
393	+	}
394	+	}
395
396		/**
397	<	* Wait out termination of a thread pool or fail doing so
397	>	* Waits out termination of a thread pool or fails doing so.
398		*/
399		public void joinPool(ExecutorService exec) {
400		try {
401		exec.shutdown();
402	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
403	<	} catch(InterruptedException ie) {
404	<	fail("Unexpected exception");
402	>	assertTrue("ExecutorService did not terminate in a timely manner",
403	>	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
404	>	} catch (SecurityException ok) {
405	>	// Allowed in case test doesn't have privs
406	>	} catch (InterruptedException ie) {
407	>	fail("Unexpected InterruptedException");
408		}
409		}
410
411
412		/**
413	<	* fail with message "should throw exception"
414	<	*/
413	>	* Fails with message "should throw exception".
414	>	*/
415		public void shouldThrow() {
416		fail("Should throw exception");
417		}
418
419		/**
420	<	* fail with message "Unexpected exception"
420	>	* Fails with message "should throw " + exceptionName.
421		*/
422	<	public void unexpectedException() {
423	<	fail("Unexpected exception");
422	>	public void shouldThrow(String exceptionName) {
423	>	fail("Should throw " + exceptionName);
424		}
425
209	–
426		/**
427		* The number of elements to place in collections, arrays, etc.
428		*/
429	<	static final int SIZE = 20;
429	>	public static final int SIZE = 20;
430
431		// Some convenient Integer constants
432
433	<	static final Integer zero = new Integer(0);
434	<	static final Integer one = new Integer(1);
435	<	static final Integer two = new Integer(2);
436	<	static final Integer three  = new Integer(3);
437	<	static final Integer four  = new Integer(4);
438	<	static final Integer five  = new Integer(5);
439	<	static final Integer six = new Integer(6);
440	<	static final Integer seven = new Integer(7);
441	<	static final Integer eight = new Integer(8);
442	<	static final Integer nine = new Integer(9);
443	<	static final Integer m1  = new Integer(-1);
444	<	static final Integer m2  = new Integer(-2);
445	<	static final Integer m3  = new Integer(-3);
446	<	static final Integer m4 = new Integer(-4);
447	<	static final Integer m5 = new Integer(-5);
448	<	static final Integer m10 = new Integer(-10);
433	>	public static final Integer zero  = new Integer(0);
434	>	public static final Integer one   = new Integer(1);
435	>	public static final Integer two   = new Integer(2);
436	>	public static final Integer three = new Integer(3);
437	>	public static final Integer four  = new Integer(4);
438	>	public static final Integer five  = new Integer(5);
439	>	public static final Integer six   = new Integer(6);
440	>	public static final Integer seven = new Integer(7);
441	>	public static final Integer eight = new Integer(8);
442	>	public static final Integer nine  = new Integer(9);
443	>	public static final Integer m1  = new Integer(-1);
444	>	public static final Integer m2  = new Integer(-2);
445	>	public static final Integer m3  = new Integer(-3);
446	>	public static final Integer m4  = new Integer(-4);
447	>	public static final Integer m5  = new Integer(-5);
448	>	public static final Integer m6  = new Integer(-6);
449	>	public static final Integer m10 = new Integer(-10);
450
451
452	<	// Some convenient Runnable classes
452	>	/**
453	>	* Runs Runnable r with a security policy that permits precisely
454	>	* the specified permissions.  If there is no current security
455	>	* manager, the runnable is run twice, both with and without a
456	>	* security manager.  We require that any security manager permit
457	>	* getPolicy/setPolicy.
458	>	*/
459	>	public void runWithPermissions(Runnable r, Permission... permissions) {
460	>	SecurityManager sm = System.getSecurityManager();
461	>	if (sm == null) {
462	>	r.run();
463	>	Policy savedPolicy = Policy.getPolicy();
464	>	try {
465	>	Policy.setPolicy(permissivePolicy());
466	>	System.setSecurityManager(new SecurityManager());
467	>	runWithPermissions(r, permissions);
468	>	} finally {
469	>	System.setSecurityManager(null);
470	>	Policy.setPolicy(savedPolicy);
471	>	}
472	>	} else {
473	>	Policy savedPolicy = Policy.getPolicy();
474	>	AdjustablePolicy policy = new AdjustablePolicy(permissions);
475	>	Policy.setPolicy(policy);
476
477	<	static class NoOpRunnable implements Runnable {
478	<	public void run() {}
477	>	try {
478	>	r.run();
479	>	} finally {
480	>	policy.addPermission(new SecurityPermission("setPolicy"));
481	>	Policy.setPolicy(savedPolicy);
482	>	}
483	>	}
484		}
485
486	<	static class NoOpCallable implements Callable {
487	<	public Object call() { return Boolean.TRUE; }
486	>	/**
487	>	* Runs a runnable without any permissions.
488	>	*/
489	>	public void runWithoutPermissions(Runnable r) {
490	>	runWithPermissions(r);
491		}
492
493	<	class ShortRunnable implements Runnable {
494	<	public void run() {
493	>	/**
494	>	* A security policy where new permissions can be dynamically added
495	>	* or all cleared.
496	>	*/
497	>	public static class AdjustablePolicy extends java.security.Policy {
498	>	Permissions perms = new Permissions();
499	>	AdjustablePolicy(Permission... permissions) {
500	>	for (Permission permission : permissions)
501	>	perms.add(permission);
502	>	}
503	>	void addPermission(Permission perm) { perms.add(perm); }
504	>	void clearPermissions() { perms = new Permissions(); }
505	>	public PermissionCollection getPermissions(CodeSource cs) {
506	>	return perms;
507	>	}
508	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
509	>	return perms;
510	>	}
511	>	public boolean implies(ProtectionDomain pd, Permission p) {
512	>	return perms.implies(p);
513	>	}
514	>	public void refresh() {}
515	>	}
516	>
517	>	/**
518	>	* Returns a policy containing all the permissions we ever need.
519	>	*/
520	>	public static Policy permissivePolicy() {
521	>	return new AdjustablePolicy
522	>	// Permissions j.u.c. needs directly
523	>	(new RuntimePermission("modifyThread"),
524	>	new RuntimePermission("getClassLoader"),
525	>	new RuntimePermission("setContextClassLoader"),
526	>	// Permissions needed to change permissions!
527	>	new SecurityPermission("getPolicy"),
528	>	new SecurityPermission("setPolicy"),
529	>	new RuntimePermission("setSecurityManager"),
530	>	// Permissions needed by the junit test harness
531	>	new RuntimePermission("accessDeclaredMembers"),
532	>	new PropertyPermission("*", "read"),
533	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
534	>	}
535	>
536	>	/**
537	>	* Sleep until the timeout has elapsed, or interrupted.
538	>	* Does <em>NOT</em> throw InterruptedException.
539	>	*/
540	>	void sleepTillInterrupted(long timeoutMillis) {
541	>	try {
542	>	Thread.sleep(timeoutMillis);
543	>	} catch (InterruptedException wakeup) {}
544	>	}
545	>
546	>	/**
547	>	* Returns a new started Thread running the given runnable.
548	>	*/
549	>	Thread newStartedThread(Runnable runnable) {
550	>	Thread t = new Thread(runnable);
551	>	t.start();
552	>	return t;
553	>	}
554	>
555	>	// Some convenient Runnable classes
556	>
557	>	public abstract class CheckedRunnable implements Runnable {
558	>	protected abstract void realRun() throws Throwable;
559	>
560	>	public final void run() {
561		try {
562	<	Thread.sleep(SHORT_DELAY_MS);
563	<	}
564	<	catch(Exception e) {
251	<	threadUnexpectedException();
562	>	realRun();
563	>	} catch (Throwable t) {
564	>	threadUnexpectedException(t);
565		}
566		}
567		}
568
569	<	class ShortInterruptedRunnable implements Runnable {
570	<	public void run() {
569	>	public abstract class RunnableShouldThrow implements Runnable {
570	>	protected abstract void realRun() throws Throwable;
571	>
572	>	final Class<?> exceptionClass;
573	>
574	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
575	>	this.exceptionClass = exceptionClass;
576	>	}
577	>
578	>	public final void run() {
579		try {
580	<	Thread.sleep(SHORT_DELAY_MS);
581	<	threadShouldThrow();
582	<	}
583	<	catch(InterruptedException success) {
580	>	realRun();
581	>	threadShouldThrow(exceptionClass.getSimpleName());
582	>	} catch (Throwable t) {
583	>	if (! exceptionClass.isInstance(t))
584	>	threadUnexpectedException(t);
585		}
586		}
587		}
588
589	<	class SmallRunnable implements Runnable {
590	<	public void run() {
589	>	public abstract class ThreadShouldThrow extends Thread {
590	>	protected abstract void realRun() throws Throwable;
591	>
592	>	final Class<?> exceptionClass;
593	>
594	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
595	>	this.exceptionClass = exceptionClass;
596	>	}
597	>
598	>	public final void run() {
599		try {
600	<	Thread.sleep(SMALL_DELAY_MS);
601	<	}
602	<	catch(Exception e) {
603	<	threadUnexpectedException();
600	>	realRun();
601	>	threadShouldThrow(exceptionClass.getSimpleName());
602	>	} catch (Throwable t) {
603	>	if (! exceptionClass.isInstance(t))
604	>	threadUnexpectedException(t);
605		}
606		}
607		}
608
609	<	class SmallCallable implements Callable {
610	<	public Object call() {
609	>	public abstract class CheckedInterruptedRunnable implements Runnable {
610	>	protected abstract void realRun() throws Throwable;
611	>
612	>	public final void run() {
613		try {
614	<	Thread.sleep(SMALL_DELAY_MS);
614	>	realRun();
615	>	threadShouldThrow("InterruptedException");
616	>	} catch (InterruptedException success) {
617	>	} catch (Throwable t) {
618	>	threadUnexpectedException(t);
619		}
283	–	catch(Exception e) {
284	–	threadUnexpectedException();
285	–	}
286	–	return Boolean.TRUE;
620		}
621		}
622
623	<	class SmallInterruptedRunnable implements Runnable {
624	<	public void run() {
623	>	public abstract class CheckedCallable<T> implements Callable<T> {
624	>	protected abstract T realCall() throws Throwable;
625	>
626	>	public final T call() {
627		try {
628	<	Thread.sleep(SMALL_DELAY_MS);
629	<	threadShouldThrow();
630	<	}
631	<	catch(InterruptedException success) {
628	>	return realCall();
629	>	} catch (Throwable t) {
630	>	threadUnexpectedException(t);
631	>	return null;
632		}
633		}
634		}
635
636	+	public abstract class CheckedInterruptedCallable<T>
637	+	implements Callable<T> {
638	+	protected abstract T realCall() throws Throwable;
639
640	<	class MediumRunnable implements Runnable {
303	<	public void run() {
640	>	public final T call() {
641		try {
642	<	Thread.sleep(MEDIUM_DELAY_MS);
643	<	}
644	<	catch(Exception e) {
645	<	threadUnexpectedException();
642	>	T result = realCall();
643	>	threadShouldThrow("InterruptedException");
644	>	return result;
645	>	} catch (InterruptedException success) {
646	>	} catch (Throwable t) {
647	>	threadUnexpectedException(t);
648		}
649	+	return null;
650		}
651		}
652
653	<	class MediumInterruptedRunnable implements Runnable {
654	<	public void run() {
653	>	public static class NoOpRunnable implements Runnable {
654	>	public void run() {}
655	>	}
656	>
657	>	public static class NoOpCallable implements Callable {
658	>	public Object call() { return Boolean.TRUE; }
659	>	}
660	>
661	>	public static final String TEST_STRING = "a test string";
662	>
663	>	public static class StringTask implements Callable<String> {
664	>	public String call() { return TEST_STRING; }
665	>	}
666	>
667	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
668	>	return new CheckedCallable<String>() {
669	>	public String realCall() {
670	>	try {
671	>	latch.await();
672	>	} catch (InterruptedException quittingTime) {}
673	>	return TEST_STRING;
674	>	}};
675	>	}
676	>
677	>	public static class NPETask implements Callable<String> {
678	>	public String call() { throw new NullPointerException(); }
679	>	}
680	>
681	>	public static class CallableOne implements Callable<Integer> {
682	>	public Integer call() { return one; }
683	>	}
684	>
685	>	public class ShortRunnable extends CheckedRunnable {
686	>	protected void realRun() throws Throwable {
687	>	Thread.sleep(SHORT_DELAY_MS);
688	>	}
689	>	}
690	>
691	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
692	>	protected void realRun() throws InterruptedException {
693	>	Thread.sleep(SHORT_DELAY_MS);
694	>	}
695	>	}
696	>
697	>	public class SmallRunnable extends CheckedRunnable {
698	>	protected void realRun() throws Throwable {
699	>	Thread.sleep(SMALL_DELAY_MS);
700	>	}
701	>	}
702	>
703	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
704	>	protected void realRun() {
705		try {
706	<	Thread.sleep(MEDIUM_DELAY_MS);
707	<	threadShouldThrow();
318	<	}
319	<	catch(InterruptedException success) {
320	<	}
706	>	Thread.sleep(SMALL_DELAY_MS);
707	>	} catch (InterruptedException ok) {}
708		}
709		}
710
711	<	class MediumPossiblyInterruptedRunnable implements Runnable {
712	<	public void run() {
711	>	public class SmallCallable extends CheckedCallable {
712	>	protected Object realCall() throws InterruptedException {
713	>	Thread.sleep(SMALL_DELAY_MS);
714	>	return Boolean.TRUE;
715	>	}
716	>	}
717	>
718	>	public class MediumRunnable extends CheckedRunnable {
719	>	protected void realRun() throws Throwable {
720	>	Thread.sleep(MEDIUM_DELAY_MS);
721	>	}
722	>	}
723	>
724	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
725	>	protected void realRun() throws InterruptedException {
726	>	Thread.sleep(MEDIUM_DELAY_MS);
727	>	}
728	>	}
729	>
730	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
731	>	protected void realRun() {
732		try {
733		Thread.sleep(MEDIUM_DELAY_MS);
734	<	}
735	<	catch(InterruptedException success) {
736	<	}
734	>	} catch (InterruptedException ok) {}
735	>	}
736	>	}
737	>
738	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
739	>	protected void realRun() {
740	>	try {
741	>	Thread.sleep(LONG_DELAY_MS);
742	>	} catch (InterruptedException ok) {}
743		}
744		}
745
746		/**
747		* For use as ThreadFactory in constructors
748		*/
749	<	static class SimpleThreadFactory implements ThreadFactory{
750	<	public Thread newThread(Runnable r){
749	>	public static class SimpleThreadFactory implements ThreadFactory {
750	>	public Thread newThread(Runnable r) {
751		return new Thread(r);
752	<	}
752	>	}
753		}
754
755	<	static class TrackedRunnable implements Runnable {
756	<	volatile boolean done = false;
755	>	public static class TrackedShortRunnable implements Runnable {
756	>	public volatile boolean done = false;
757		public void run() {
758		try {
759		Thread.sleep(SMALL_DELAY_MS);
760		done = true;
761	<	} catch(Exception e){
762	<	}
761	>	} catch (InterruptedException ok) {}
762	>	}
763	>	}
764	>
765	>	public static class TrackedMediumRunnable implements Runnable {
766	>	public volatile boolean done = false;
767	>	public void run() {
768	>	try {
769	>	Thread.sleep(MEDIUM_DELAY_MS);
770	>	done = true;
771	>	} catch (InterruptedException ok) {}
772		}
773		}
774
775	<	static class TrackedCallable implements Callable {
776	<	volatile boolean done = false;
775	>	public static class TrackedLongRunnable implements Runnable {
776	>	public volatile boolean done = false;
777	>	public void run() {
778	>	try {
779	>	Thread.sleep(LONG_DELAY_MS);
780	>	done = true;
781	>	} catch (InterruptedException ok) {}
782	>	}
783	>	}
784	>
785	>	public static class TrackedNoOpRunnable implements Runnable {
786	>	public volatile boolean done = false;
787	>	public void run() {
788	>	done = true;
789	>	}
790	>	}
791	>
792	>	public static class TrackedCallable implements Callable {
793	>	public volatile boolean done = false;
794		public Object call() {
795		try {
796		Thread.sleep(SMALL_DELAY_MS);
797		done = true;
798	<	} catch(Exception e){
361	<	}
798	>	} catch (InterruptedException ok) {}
799		return Boolean.TRUE;
800		}
801		}
802
803		/**
804	+	* Analog of CheckedRunnable for RecursiveAction
805	+	*/
806	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
807	+	protected abstract void realCompute() throws Throwable;
808	+
809	+	public final void compute() {
810	+	try {
811	+	realCompute();
812	+	} catch (Throwable t) {
813	+	threadUnexpectedException(t);
814	+	}
815	+	}
816	+	}
817	+
818	+	/**
819	+	* Analog of CheckedCallable for RecursiveTask
820	+	*/
821	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
822	+	protected abstract T realCompute() throws Throwable;
823	+
824	+	public final T compute() {
825	+	try {
826	+	return realCompute();
827	+	} catch (Throwable t) {
828	+	threadUnexpectedException(t);
829	+	return null;
830	+	}
831	+	}
832	+	}
833	+
834	+	/**
835		* For use as RejectedExecutionHandler in constructors
836		*/
837	<	static class NoOpREHandler implements RejectedExecutionHandler{
838	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
837	>	public static class NoOpREHandler implements RejectedExecutionHandler {
838	>	public void rejectedExecution(Runnable r,
839	>	ThreadPoolExecutor executor) {}
840		}
841	<
373	<
841	>
842		}

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