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

Comparing jsr166/src/test/tck/ExecutorsTest.java (file contents):
Revision 1.4 by dl, Sat Sep 20 18:20:07 2003 UTC vs.
Revision 1.12 by dl, Sat Dec 27 19:26:43 2003 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
#	Line 10 | Line 11 | import junit.framework.*;
11		import java.util.*;
12		import java.util.concurrent.*;
13		import java.math.BigInteger;
14	+	import java.security.*;
15
16		public class ExecutorsTest extends JSR166TestCase{
15	–
17		public static void main(String[] args) {
18	<	junit.textui.TestRunner.run (suite());
18	>	junit.textui.TestRunner.run (suite());
19		}
20		public static Test suite() {
21	<	return new TestSuite(ExecutorsTest.class);
21	<	}
22	<
23	<	private static final String TEST_STRING = "a test string";
24	<
25	<	private static class MyTask implements Runnable {
26	<	public void run() { completed = true; }
27	<	public boolean isCompleted() { return completed; }
28	<	public void reset() { completed = false; }
29	<	private boolean completed = false;
30	<	}
31	<
32	<	private static class StringTask implements Callable<String> {
33	<	public String call() { return TEST_STRING; }
34	<	}
35	<
36	<	static class DirectExecutor implements Executor {
37	<	public void execute(Runnable r) {
38	<	r.run();
39	<	}
21	>	return new TestSuite(ExecutorsTest.class);
22		}
23
24		static class TimedCallable<T> implements Callable<T> {
25	<	private final Executor exec;
25	>	private final ExecutorService exec;
26		private final Callable<T> func;
27		private final long msecs;
28
29	<	TimedCallable(Executor exec, Callable<T> func, long msecs) {
29	>	TimedCallable(ExecutorService exec, Callable<T> func, long msecs) {
30		this.exec = exec;
31		this.func = func;
32		this.msecs = msecs;
33		}
34
35		public T call() throws Exception {
36	<	Future<T> ftask = Executors.execute(exec, func);
36	>	Future<T> ftask = exec.submit(func);
37		try {
38		return ftask.get(msecs, TimeUnit.MILLISECONDS);
39		} finally {
#	Line 79 | Line 61 | public class ExecutorsTest extends JSR16
61		}
62		};
63
64	+	/**
65	+	* A newCachedThreadPool can execute runnables
66	+	*/
67	+	public void testNewCachedThreadPool1() {
68	+	ExecutorService e = Executors.newCachedThreadPool();
69	+	e.execute(new NoOpRunnable());
70	+	e.execute(new NoOpRunnable());
71	+	e.execute(new NoOpRunnable());
72	+	e.shutdown();
73	+	}
74
75	+	/**
76	+	* A newCachedThreadPool with given ThreadFactory can execute runnables
77	+	*/
78	+	public void testNewCachedThreadPool2() {
79	+	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
80	+	e.execute(new NoOpRunnable());
81	+	e.execute(new NoOpRunnable());
82	+	e.execute(new NoOpRunnable());
83	+	e.shutdown();
84	+	}
85
86		/**
87	<	*   execute(Executor, Runnable) will throw
86	<	*  RejectedExecutionException Attempting to execute a runnable on
87	<	*  a full ThreadPool will cause such an exception here, up to 5
88	<	*  runnables are attempted on a pool capable on handling one
89	<	*  until it throws an exception
87	>	* A newCachedThreadPool with null ThreadFactory throws NPE
88		*/
89	<	public void testExecute1() {
92	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
89	>	public void testNewCachedThreadPool3() {
90		try {
91	<
95	<	for(int i = 0; i < 5; ++i){
96	<	Executors.execute(p, new MediumRunnable(), Boolean.TRUE);
97	<	}
91	>	ExecutorService e = Executors.newCachedThreadPool(null);
92		shouldThrow();
93	<	} catch(RejectedExecutionException success){}
94	<	joinPool(p);
93	>	}
94	>	catch(NullPointerException success) {
95	>	}
96		}
97
98	+
99		/**
100	<	*   execute(Executor, Callable) will throw
105	<	*  RejectedExecutionException Attempting to execute a callable on
106	<	*  a full ThreadPool will cause such an exception here, up to 5
107	<	*  runnables are attempted on a pool capable on handling one
108	<	*  until it throws an exception
100	>	* A new SingleThreadExecutor can execute runnables
101		*/
102	<	public void testExecute2() {
103	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
104	<	try {
105	<	for(int i = 0; i < 5; ++i) {
106	<	Executors.execute(p, new SmallCallable());
107	<	}
116	<	shouldThrow();
117	<	} catch(RejectedExecutionException e){}
118	<	joinPool(p);
102	>	public void testNewSingleThreadExecutor1() {
103	>	ExecutorService e = Executors.newSingleThreadExecutor();
104	>	e.execute(new NoOpRunnable());
105	>	e.execute(new NoOpRunnable());
106	>	e.execute(new NoOpRunnable());
107	>	e.shutdown();
108		}
109
110	+	/**
111	+	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
112	+	*/
113	+	public void testNewSingleThreadExecutor2() {
114	+	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
115	+	e.execute(new NoOpRunnable());
116	+	e.execute(new NoOpRunnable());
117	+	e.execute(new NoOpRunnable());
118	+	e.shutdown();
119	+	}
120
121		/**
122	<	*   invoke(Executor, Runnable) throws InterruptedException
124	<	*  A single use of invoke starts that will wait long enough
125	<	*  for the invoking thread to be interrupted
122	>	* A new SingleThreadExecutor with null ThreadFactory throws NPE
123		*/
124	<	public void testInvoke2() {
128	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
129	<	Thread t = new Thread(new Runnable() {
130	<	public void run() {
131	<	try {
132	<	Executors.invoke(p,new Runnable() {
133	<	public void run() {
134	<	try {
135	<	Thread.sleep(MEDIUM_DELAY_MS);
136	<	shouldThrow();
137	<	} catch(InterruptedException e){
138	<	}
139	<	}
140	<	});
141	<	} catch(InterruptedException success){
142	<	} catch(Exception e) {
143	<	unexpectedException();
144	<	}
145	<
146	<	}
147	<	});
124	>	public void testNewSingleThreadExecutor3() {
125		try {
126	<	t.start();
127	<	Thread.sleep(SHORT_DELAY_MS);
128	<	t.interrupt();
129	<	} catch(Exception e){
153	<	unexpectedException();
126	>	ExecutorService e = Executors.newSingleThreadExecutor(null);
127	>	shouldThrow();
128	>	}
129	>	catch(NullPointerException success) {
130		}
155	–	joinPool(p);
131		}
132
133		/**
134	<	*   invoke(Executor, Runnable) will throw
160	<	*  ExecutionException An ExecutionException occurs when the
161	<	*  underlying Runnable throws an exception, here the
162	<	*  DivideByZeroException will cause an ExecutionException
134	>	* A new SingleThreadExecutor cannot be casted to concrete implementation
135		*/
136	<	public void testInvoke3() {
137	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
136	>	public void testCastNewSingleThreadExecutor() {
137	>	ExecutorService e = Executors.newSingleThreadExecutor();
138		try {
139	<	Runnable r = new Runnable() {
140	<	public void run() {
141	<	int i = 5/0;
142	<	}
171	<	};
172	<
173	<	for(int i =0; i < 5; i++){
174	<	Executors.invoke(p,r);
175	<	}
176	<
177	<	shouldThrow();
178	<	} catch(ExecutionException success){
179	<	} catch(Exception e){
180	<	unexpectedException();
139	>	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
140	>	} catch (ClassCastException success) {
141	>	} finally {
142	>	joinPool(e);
143		}
182	–	joinPool(p);
144		}
145
146
186	–
147		/**
148	<	*   invoke(Executor, Callable) throws
189	<	*  InterruptedException A single use of invoke starts that will
190	<	*  wait long enough for the invoking thread to be interrupted
148	>	* A new newFixedThreadPool can execute runnables
149		*/
150	<	public void testInvoke5() {
151	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
152	<
153	<	final Callable c = new Callable() {
154	<	public Object call() {
155	<	try {
198	<	Executors.invoke(p, new SmallCallable());
199	<	shouldThrow();
200	<	} catch(InterruptedException e){}
201	<	catch(RejectedExecutionException e2){}
202	<	catch(ExecutionException e3){}
203	<	return Boolean.TRUE;
204	<	}
205	<	};
206	<
207	<
208	<
209	<	Thread t = new Thread(new Runnable() {
210	<	public void run() {
211	<	try {
212	<	c.call();
213	<	} catch(Exception e){}
214	<	}
215	<	});
216	<	try {
217	<	t.start();
218	<	Thread.sleep(SHORT_DELAY_MS);
219	<	t.interrupt();
220	<	t.join();
221	<	} catch(InterruptedException e){
222	<	unexpectedException();
223	<	}
224	<
225	<	joinPool(p);
150	>	public void testNewFixedThreadPool1() {
151	>	ExecutorService e = Executors.newFixedThreadPool(2);
152	>	e.execute(new NoOpRunnable());
153	>	e.execute(new NoOpRunnable());
154	>	e.execute(new NoOpRunnable());
155	>	e.shutdown();
156		}
157
158		/**
159	<	*   invoke(Executor, Callable) will throw ExecutionException
230	<	*  An ExecutionException occurs when the underlying Runnable throws
231	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
159	>	* A new newFixedThreadPool with given ThreadFactory can execute runnables
160		*/
161	<	public void testInvoke6() {
162	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
161	>	public void testNewFixedThreadPool2() {
162	>	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
163	>	e.execute(new NoOpRunnable());
164	>	e.execute(new NoOpRunnable());
165	>	e.execute(new NoOpRunnable());
166	>	e.shutdown();
167	>	}
168
169	+	/**
170	+	* A new newFixedThreadPool with null ThreadFactory throws NPE
171	+	*/
172	+	public void testNewFixedThreadPool3() {
173		try {
174	<	Callable c = new Callable() {
238	<	public Object call() {
239	<	int i = 5/0;
240	<	return Boolean.TRUE;
241	<	}
242	<	};
243	<
244	<	for(int i =0; i < 5; i++){
245	<	Executors.invoke(p,c);
246	<	}
247	<
174	>	ExecutorService e = Executors.newFixedThreadPool(2, null);
175		shouldThrow();
176	<	} catch(RejectedExecutionException e){}
177	<	catch(InterruptedException e2){}
178	<	catch(ExecutionException e3){}
252	<	joinPool(p);
176	>	}
177	>	catch(NullPointerException success) {
178	>	}
179		}
180
181		/**
182	<	*
182	>	* A new newFixedThreadPool with 0 threads throws IAE
183		*/
184	<	public void testExecuteRunnable () {
184	>	public void testNewFixedThreadPool4() {
185		try {
186	<	Executor e = new DirectExecutor();
187	<	MyTask task = new MyTask();
262	<	assertFalse(task.isCompleted());
263	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
264	<	String result = future.get();
265	<	assertTrue(task.isCompleted());
266	<	assertSame(TEST_STRING, result);
267	<	}
268	<	catch (ExecutionException ex) {
269	<	unexpectedException();
186	>	ExecutorService e = Executors.newFixedThreadPool(0);
187	>	shouldThrow();
188		}
189	<	catch (InterruptedException ex) {
272	<	unexpectedException();
189	>	catch(IllegalArgumentException success) {
190		}
191		}
192
193	+
194	+	/**
195	+	* An unconfigurable newFixedThreadPool can execute runnables
196	+	*/
197	+	public void testunconfigurableExecutorService() {
198	+	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
199	+	e.execute(new NoOpRunnable());
200	+	e.execute(new NoOpRunnable());
201	+	e.execute(new NoOpRunnable());
202	+	e.shutdown();
203	+	}
204	+
205		/**
206	<	*
206	>	* unconfigurableExecutorService(null) throws NPE
207		*/
208	<	public void testInvokeRunnable () {
208	>	public void testunconfigurableExecutorServiceNPE() {
209		try {
210	<	Executor e = new DirectExecutor();
282	<	MyTask task = new MyTask();
283	<	assertFalse(task.isCompleted());
284	<	Executors.invoke(e, task);
285	<	assertTrue(task.isCompleted());
286	<	}
287	<	catch (ExecutionException ex) {
288	<	unexpectedException();
210	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
211		}
212	<	catch (InterruptedException ex) {
291	<	unexpectedException();
212	>	catch (NullPointerException success) {
213		}
214		}
215
216		/**
217	<	*
217	>	* unconfigurableScheduledExecutorService(null) throws NPE
218		*/
219	<	public void testExecuteCallable () {
219	>	public void testunconfigurableScheduledExecutorServiceNPE() {
220		try {
221	<	Executor e = new DirectExecutor();
301	<	Future<String> future = Executors.execute(e, new StringTask());
302	<	String result = future.get();
303	<	assertSame(TEST_STRING, result);
221	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
222		}
223	<	catch (ExecutionException ex) {
306	<	unexpectedException();
223	>	catch (NullPointerException success) {
224		}
225	<	catch (InterruptedException ex) {
225	>	}
226	>
227	>
228	>	/**
229	>	* a newSingleThreadScheduledExecutor successfully runs delayed task
230	>	*/
231	>	public void testNewSingleThreadScheduledExecutor() {
232	>	try {
233	>	TrackedCallable callable = new TrackedCallable();
234	>	ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
235	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
236	>	assertFalse(callable.done);
237	>	Thread.sleep(MEDIUM_DELAY_MS);
238	>	assertTrue(callable.done);
239	>	assertEquals(Boolean.TRUE, f.get());
240	>	p1.shutdown();
241	>	joinPool(p1);
242	>	} catch(RejectedExecutionException e){}
243	>	catch(Exception e){
244	>	e.printStackTrace();
245		unexpectedException();
246		}
247		}
248
249		/**
250	<	*
250	>	* a newScheduledThreadPool successfully runs delayed task
251		*/
252	<	public void testInvokeCallable () {
253	<	try {
254	<	Executor e = new DirectExecutor();
255	<	String result = Executors.invoke(e, new StringTask());
256	<
257	<	assertSame(TEST_STRING, result);
258	<	}
259	<	catch (ExecutionException ex) {
252	>	public void testnewScheduledThreadPool() {
253	>	try {
254	>	TrackedCallable callable = new TrackedCallable();
255	>	ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
256	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
257	>	assertFalse(callable.done);
258	>	Thread.sleep(MEDIUM_DELAY_MS);
259	>	assertTrue(callable.done);
260	>	assertEquals(Boolean.TRUE, f.get());
261	>	p1.shutdown();
262	>	joinPool(p1);
263	>	} catch(RejectedExecutionException e){}
264	>	catch(Exception e){
265	>	e.printStackTrace();
266		unexpectedException();
267		}
268	<	catch (InterruptedException ex) {
268	>	}
269	>
270	>	/**
271	>	* an unconfigurable  newScheduledThreadPool successfully runs delayed task
272	>	*/
273	>	public void testunconfigurableScheduledExecutorService() {
274	>	try {
275	>	TrackedCallable callable = new TrackedCallable();
276	>	ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
277	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
278	>	assertFalse(callable.done);
279	>	Thread.sleep(MEDIUM_DELAY_MS);
280	>	assertTrue(callable.done);
281	>	assertEquals(Boolean.TRUE, f.get());
282	>	p1.shutdown();
283	>	joinPool(p1);
284	>	} catch(RejectedExecutionException e){}
285	>	catch(Exception e){
286	>	e.printStackTrace();
287		unexpectedException();
288		}
289		}
#	Line 369 | Line 329 | public class ExecutorsTest extends JSR16
329		}
330
331
332	+	/**
333	+	* ThreadPoolExecutor using defaultThreadFactory has
334	+	* specified group, priority, daemon status, and name
335	+	*/
336	+	public void testDefaultThreadFactory() {
337	+	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
338	+	Runnable r = new Runnable() {
339	+	public void run() {
340	+	Thread current = Thread.currentThread();
341	+	threadAssertTrue(!current.isDaemon());
342	+	threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
343	+	ThreadGroup g = current.getThreadGroup();
344	+	SecurityManager s = System.getSecurityManager();
345	+	if (s != null)
346	+	threadAssertTrue(g == s.getThreadGroup());
347	+	else
348	+	threadAssertTrue(g == egroup);
349	+	String name = current.getName();
350	+	threadAssertTrue(name.endsWith("thread-1"));
351	+	}
352	+	};
353	+	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
354	+
355	+	e.execute(r);
356	+	e.shutdown();
357	+	try {
358	+	Thread.sleep(SHORT_DELAY_MS);
359	+	} catch (Exception eX) {
360	+	unexpectedException();
361	+	} finally {
362	+	joinPool(e);
363	+	}
364	+	}
365	+
366	+	/**
367	+	* ThreadPoolExecutor using privilegedThreadFactory has
368	+	* specified group, priority, daemon status, name,
369	+	* access control context and context class loader
370	+	*/
371	+	public void testPrivilegedThreadFactory() {
372	+	Policy savedPolicy = Policy.getPolicy();
373	+	AdjustablePolicy policy = new AdjustablePolicy();
374	+	policy.addPermission(new RuntimePermission("getContextClassLoader"));
375	+	policy.addPermission(new RuntimePermission("setContextClassLoader"));
376	+	Policy.setPolicy(policy);
377	+	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
378	+	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
379	+	final AccessControlContext thisacc = AccessController.getContext();
380	+	Runnable r = new Runnable() {
381	+	public void run() {
382	+	Thread current = Thread.currentThread();
383	+	threadAssertTrue(!current.isDaemon());
384	+	threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
385	+	ThreadGroup g = current.getThreadGroup();
386	+	SecurityManager s = System.getSecurityManager();
387	+	if (s != null)
388	+	threadAssertTrue(g == s.getThreadGroup());
389	+	else
390	+	threadAssertTrue(g == egroup);
391	+	String name = current.getName();
392	+	threadAssertTrue(name.endsWith("thread-1"));
393	+	threadAssertTrue(thisccl == current.getContextClassLoader());
394	+	threadAssertTrue(thisacc.equals(AccessController.getContext()));
395	+	}
396	+	};
397	+	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
398	+
399	+	Policy.setPolicy(savedPolicy);
400	+	e.execute(r);
401	+	e.shutdown();
402	+	try {
403	+	Thread.sleep(SHORT_DELAY_MS);
404	+	} catch (Exception ex) {
405	+	unexpectedException();
406	+	} finally {
407	+	joinPool(e);
408	+	}
409	+
410	+	}
411	+
412	+	static class CheckCCL implements Callable<Object> {
413	+	public Object call() {
414	+	AccessControlContext acc = AccessController.getContext();
415	+	acc.checkPermission(new RuntimePermission("getContextClassLoader"));
416	+	return null;
417	+	}
418	+	}
419	+
420	+
421	+	/**
422	+	* Without class loader permissions, creating
423	+	* privilegedCallableUsingCurrentClassLoader throws ACE
424	+	*/
425	+	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
426	+	Policy savedPolicy = Policy.getPolicy();
427	+	AdjustablePolicy policy = new AdjustablePolicy();
428	+	Policy.setPolicy(policy);
429	+	try {
430	+	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
431	+	shouldThrow();
432	+	} catch(AccessControlException success) {
433	+	} catch(Exception ex) {
434	+	unexpectedException();
435	+	}
436	+	finally {
437	+	Policy.setPolicy(savedPolicy);
438	+	}
439	+	}
440	+
441	+	/**
442	+	* Without class loader permissions, calling
443	+	* privilegedCallableUsingCurrentClassLoader throws ACE
444	+	*/
445	+	public void testprivilegedCallableUsingCCLWithPrivs() {
446	+	Policy savedPolicy = Policy.getPolicy();
447	+	AdjustablePolicy policy = new AdjustablePolicy();
448	+	policy.addPermission(new RuntimePermission("getContextClassLoader"));
449	+	policy.addPermission(new RuntimePermission("setContextClassLoader"));
450	+	Policy.setPolicy(policy);
451	+	try {
452	+	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
453	+	task.call();
454	+	} catch(Exception ex) {
455	+	unexpectedException();
456	+	}
457	+	finally {
458	+	Policy.setPolicy(savedPolicy);
459	+	}
460	+	}
461	+
462	+	/**
463	+	* Without permissions, calling privilegedCallable throws ACE
464	+	*/
465	+	public void testprivilegedCallableWithNoPrivs() {
466	+	Policy savedPolicy = Policy.getPolicy();
467	+	AdjustablePolicy policy = new AdjustablePolicy();
468	+	Policy.setPolicy(policy);
469	+	Callable task = Executors.privilegedCallable(new CheckCCL());
470	+	Policy.setPolicy(savedPolicy);
471	+	try {
472	+	task.call();
473	+	shouldThrow();
474	+	} catch(AccessControlException success) {
475	+	} catch(Exception ex) {
476	+	unexpectedException();
477	+	} finally {
478	+	}
479	+	}
480	+
481	+	/**
482	+	* With permissions, calling privilegedCallable succeeds
483	+	*/
484	+	public void testprivilegedCallableWithPrivs() {
485	+	Policy savedPolicy = Policy.getPolicy();
486	+	AdjustablePolicy policy = new AdjustablePolicy();
487	+	policy.addPermission(new RuntimePermission("getContextClassLoader"));
488	+	policy.addPermission(new RuntimePermission("setContextClassLoader"));
489	+	Policy.setPolicy(policy);
490	+	Callable task = Executors.privilegedCallable(new CheckCCL());
491	+	try {
492	+	task.call();
493	+	} catch(Exception ex) {
494	+	unexpectedException();
495	+	} finally {
496	+	Policy.setPolicy(savedPolicy);
497	+	}
498	+	}
499	+
500	+	/**
501	+	* callable(Runnable) returns null when called
502	+	*/
503	+	public void testCallable1() {
504	+	try {
505	+	Callable c = Executors.callable(new NoOpRunnable());
506	+	assertNull(c.call());
507	+	} catch(Exception ex) {
508	+	unexpectedException();
509	+	}
510	+
511	+	}
512	+
513	+	/**
514	+	* callable(Runnable, result) returns result when called
515	+	*/
516	+	public void testCallable2() {
517	+	try {
518	+	Callable c = Executors.callable(new NoOpRunnable(), one);
519	+	assertEquals(one, c.call());
520	+	} catch(Exception ex) {
521	+	unexpectedException();
522	+	}
523	+	}
524	+
525	+	/**
526	+	* callable(PrivilegedAction) returns its result when called
527	+	*/
528	+	public void testCallable3() {
529	+	try {
530	+	Callable c = Executors.callable(new PrivilegedAction() {
531	+	public Object run() { return one; }});
532	+	assertEquals(one, c.call());
533	+	} catch(Exception ex) {
534	+	unexpectedException();
535	+	}
536	+	}
537	+
538	+	/**
539	+	* callable(PrivilegedExceptionAction) returns its result when called
540	+	*/
541	+	public void testCallable4() {
542	+	try {
543	+	Callable c = Executors.callable(new PrivilegedExceptionAction() {
544	+	public Object run() { return one; }});
545	+	assertEquals(one, c.call());
546	+	} catch(Exception ex) {
547	+	unexpectedException();
548	+	}
549	+	}
550	+
551	+
552	+	/**
553	+	* callable(null Runnable) throws NPE
554	+	*/
555	+	public void testCallableNPE1() {
556	+	try {
557	+	Runnable r = null;
558	+	Callable c = Executors.callable(r);
559	+	} catch (NullPointerException success) {
560	+	}
561	+	}
562	+
563	+	/**
564	+	* callable(null, result) throws NPE
565	+	*/
566	+	public void testCallableNPE2() {
567	+	try {
568	+	Runnable r = null;
569	+	Callable c = Executors.callable(r, one);
570	+	} catch (NullPointerException success) {
571	+	}
572	+	}
573	+
574	+	/**
575	+	* callable(null PrivilegedAction) throws NPE
576	+	*/
577	+	public void testCallableNPE3() {
578	+	try {
579	+	PrivilegedAction r = null;
580	+	Callable c = Executors.callable(r);
581	+	} catch (NullPointerException success) {
582	+	}
583	+	}
584	+
585	+	/**
586	+	* callable(null PrivilegedExceptionAction) throws NPE
587	+	*/
588	+	public void testCallableNPE4() {
589	+	try {
590	+	PrivilegedExceptionAction r = null;
591	+	Callable c = Executors.callable(r);
592	+	} catch (NullPointerException success) {
593	+	}
594	+	}
595
596
597		}

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