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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 1.35 by jsr166, Mon Oct 11 08:47:04 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
10		import junit.framework.*;
11		import java.util.*;
12		import java.util.concurrent.*;
13	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
14		import java.math.BigInteger;
15	+	import java.security.*;
16
17	<	public class ExecutorsTest extends JSR166TestCase{
15	<
17	>	public class ExecutorsTest extends JSR166TestCase {
18		public static void main(String[] args) {
19	<	junit.textui.TestRunner.run (suite());
19	>	junit.textui.TestRunner.run(suite());
20		}
21		public static Test suite() {
22	<	return new TestSuite(ExecutorsTest.class);
22	>	return new TestSuite(ExecutorsTest.class);
23		}
24
25	<	private static final String TEST_STRING = "a test string";
26	<
27	<	private static class MyTask implements Runnable {
28	<	public void run() { completed = true; }
29	<	public boolean isCompleted() { return completed; }
30	<	public void reset() { completed = false; }
31	<	private boolean completed = false;
32	<	}
33	<
32	<	private static class StringTask implements Callable<String> {
33	<	public String call() { return TEST_STRING; }
25	>	/**
26	>	* A newCachedThreadPool can execute runnables
27	>	*/
28	>	public void testNewCachedThreadPool1() {
29	>	ExecutorService e = Executors.newCachedThreadPool();
30	>	e.execute(new NoOpRunnable());
31	>	e.execute(new NoOpRunnable());
32	>	e.execute(new NoOpRunnable());
33	>	joinPool(e);
34		}
35
36	<	static class DirectExecutor implements Executor {
37	<	public void execute(Runnable r) {
38	<	r.run();
39	<	}
36	>	/**
37	>	* A newCachedThreadPool with given ThreadFactory can execute runnables
38	>	*/
39	>	public void testNewCachedThreadPool2() {
40	>	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
41	>	e.execute(new NoOpRunnable());
42	>	e.execute(new NoOpRunnable());
43	>	e.execute(new NoOpRunnable());
44	>	joinPool(e);
45		}
46
47	<	static class TimedCallable<T> implements Callable<T> {
48	<	private final Executor exec;
49	<	private final Callable<T> func;
50	<	private final long msecs;
51	<
52	<	TimedCallable(Executor exec, Callable<T> func, long msecs) {
53	<	this.exec = exec;
54	<	this.func = func;
50	<	this.msecs = msecs;
51	<	}
52	<
53	<	public T call() throws Exception {
54	<	Future<T> ftask = Executors.execute(exec, func);
55	<	try {
56	<	return ftask.get(msecs, TimeUnit.MILLISECONDS);
57	<	} finally {
58	<	ftask.cancel(true);
59	<	}
60	<	}
47	>	/**
48	>	* A newCachedThreadPool with null ThreadFactory throws NPE
49	>	*/
50	>	public void testNewCachedThreadPool3() {
51	>	try {
52	>	ExecutorService e = Executors.newCachedThreadPool(null);
53	>	shouldThrow();
54	>	} catch (NullPointerException success) {}
55		}
56
57
58	<	private static class Fib implements Callable<BigInteger> {
59	<	private final BigInteger n;
60	<	Fib(long n) {
61	<	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
62	<	this.n = BigInteger.valueOf(n);
63	<	}
64	<	public BigInteger call() {
65	<	BigInteger f1 = BigInteger.ONE;
66	<	BigInteger f2 = f1;
67	<	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
74	<	BigInteger t = f1.add(f2);
75	<	f1 = f2;
76	<	f2 = t;
77	<	}
78	<	return f1;
79	<	}
80	<	};
81	<
58	>	/**
59	>	* A new SingleThreadExecutor can execute runnables
60	>	*/
61	>	public void testNewSingleThreadExecutor1() {
62	>	ExecutorService e = Executors.newSingleThreadExecutor();
63	>	e.execute(new NoOpRunnable());
64	>	e.execute(new NoOpRunnable());
65	>	e.execute(new NoOpRunnable());
66	>	joinPool(e);
67	>	}
68
69	+	/**
70	+	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
71	+	*/
72	+	public void testNewSingleThreadExecutor2() {
73	+	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
74	+	e.execute(new NoOpRunnable());
75	+	e.execute(new NoOpRunnable());
76	+	e.execute(new NoOpRunnable());
77	+	joinPool(e);
78	+	}
79
80		/**
81	<	*   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
81	>	* A new SingleThreadExecutor with null ThreadFactory throws NPE
82		*/
83	<	public void testExecute1() {
92	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
83	>	public void testNewSingleThreadExecutor3() {
84		try {
85	<
95	<	for(int i = 0; i < 5; ++i){
96	<	Executors.execute(p, new MediumRunnable(), Boolean.TRUE);
97	<	}
85	>	ExecutorService e = Executors.newSingleThreadExecutor(null);
86		shouldThrow();
87	<	} catch(RejectedExecutionException success){}
100	<	joinPool(p);
87	>	} catch (NullPointerException success) {}
88		}
89
90		/**
91	<	*   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
91	>	* A new SingleThreadExecutor cannot be casted to concrete implementation
92		*/
93	<	public void testExecute2() {
94	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
93	>	public void testCastNewSingleThreadExecutor() {
94	>	ExecutorService e = Executors.newSingleThreadExecutor();
95		try {
96	<	for(int i = 0; i < 5; ++i) {
114	<	Executors.execute(p, new SmallCallable());
115	<	}
96	>	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
97		shouldThrow();
98	<	} catch(RejectedExecutionException e){}
99	<	joinPool(p);
98	>	} catch (ClassCastException success) {
99	>	} finally {
100	>	joinPool(e);
101	>	}
102		}
103
104
105		/**
106	<	*   invoke(Executor, Runnable) throws InterruptedException
107	<	*  A single use of invoke starts that will wait long enough
108	<	*  for the invoking thread to be interrupted
109	<	*/
110	<	public void testInvoke2() {
111	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
112	<	Thread t = new Thread(new Runnable() {
113	<	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	<	});
148	<	try {
149	<	t.start();
150	<	Thread.sleep(SHORT_DELAY_MS);
151	<	t.interrupt();
152	<	} catch(Exception e){
153	<	unexpectedException();
154	<	}
155	<	joinPool(p);
106	>	* A new newFixedThreadPool can execute runnables
107	>	*/
108	>	public void testNewFixedThreadPool1() {
109	>	ExecutorService e = Executors.newFixedThreadPool(2);
110	>	e.execute(new NoOpRunnable());
111	>	e.execute(new NoOpRunnable());
112	>	e.execute(new NoOpRunnable());
113	>	joinPool(e);
114		}
115
116		/**
117	<	*   invoke(Executor, Runnable) will throw
118	<	*  ExecutionException An ExecutionException occurs when the
119	<	*  underlying Runnable throws an exception, here the
120	<	*  DivideByZeroException will cause an ExecutionException
121	<	*/
122	<	public void testInvoke3() {
123	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
124	<	try {
125	<	Runnable r = new Runnable() {
126	<	public void run() {
127	<	int i = 5/0;
128	<	}
129	<	};
130	<
131	<	for(int i =0; i < 5; i++){
132	<	Executors.invoke(p,r);
175	<	}
176	<
117	>	* A new newFixedThreadPool with given ThreadFactory can execute runnables
118	>	*/
119	>	public void testNewFixedThreadPool2() {
120	>	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
121	>	e.execute(new NoOpRunnable());
122	>	e.execute(new NoOpRunnable());
123	>	e.execute(new NoOpRunnable());
124	>	joinPool(e);
125	>	}
126	>
127	>	/**
128	>	* A new newFixedThreadPool with null ThreadFactory throws NPE
129	>	*/
130	>	public void testNewFixedThreadPool3() {
131	>	try {
132	>	ExecutorService e = Executors.newFixedThreadPool(2, null);
133		shouldThrow();
134	<	} catch(ExecutionException success){
179	<	} catch(Exception e){
180	<	unexpectedException();
181	<	}
182	<	joinPool(p);
134	>	} catch (NullPointerException success) {}
135		}
136
137	+	/**
138	+	* A new newFixedThreadPool with 0 threads throws IAE
139	+	*/
140	+	public void testNewFixedThreadPool4() {
141	+	try {
142	+	ExecutorService e = Executors.newFixedThreadPool(0);
143	+	shouldThrow();
144	+	} catch (IllegalArgumentException success) {}
145	+	}
146
147
148		/**
149	<	*   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
149	>	* An unconfigurable newFixedThreadPool can execute runnables
150		*/
151	<	public void testInvoke5() {
152	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
153	<
154	<	final Callable c = new Callable() {
155	<	public Object call() {
156	<	try {
157	<	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	<
151	>	public void testunconfigurableExecutorService() {
152	>	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
153	>	e.execute(new NoOpRunnable());
154	>	e.execute(new NoOpRunnable());
155	>	e.execute(new NoOpRunnable());
156	>	joinPool(e);
157	>	}
158
159	<
160	<	Thread t = new Thread(new Runnable() {
161	<	public void run() {
162	<	try {
212	<	c.call();
213	<	} catch(Exception e){}
214	<	}
215	<	});
159	>	/**
160	>	* unconfigurableExecutorService(null) throws NPE
161	>	*/
162	>	public void testunconfigurableExecutorServiceNPE() {
163		try {
164	<	t.start();
165	<	Thread.sleep(SHORT_DELAY_MS);
166	<	t.interrupt();
220	<	t.join();
221	<	} catch(InterruptedException e){
222	<	unexpectedException();
223	<	}
224	<
225	<	joinPool(p);
164	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
165	>	shouldThrow();
166	>	} catch (NullPointerException success) {}
167		}
168
169		/**
170	<	*   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
170	>	* unconfigurableScheduledExecutorService(null) throws NPE
171		*/
172	<	public void testInvoke6() {
234	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
235	<
172	>	public void testunconfigurableScheduledExecutorServiceNPE() {
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.unconfigurableScheduledExecutorService(null);
175		shouldThrow();
176	<	} catch(RejectedExecutionException e){}
250	<	catch(InterruptedException e2){}
251	<	catch(ExecutionException e3){}
252	<	joinPool(p);
176	>	} catch (NullPointerException success) {}
177		}
178
179	+
180		/**
181	<	*
181	>	* a newSingleThreadScheduledExecutor successfully runs delayed task
182		*/
183	<	public void testExecuteRunnable () {
183	>	public void testNewSingleThreadScheduledExecutor() throws Exception {
184	>	ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
185		try {
186	<	Executor e = new DirectExecutor();
187	<	MyTask task = new MyTask();
188	<	assertFalse(task.isCompleted());
189	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
190	<	String result = future.get();
191	<	assertTrue(task.isCompleted());
192	<	assertSame(TEST_STRING, result);
193	<	}
194	<	catch (ExecutionException ex) {
195	<	unexpectedException();
196	<	}
197	<	catch (InterruptedException ex) {
198	<	unexpectedException();
186	>	final CountDownLatch done = new CountDownLatch(1);
187	>	final Runnable task = new CheckedRunnable() {
188	>	public void realRun() {
189	>	done.countDown();
190	>	}};
191	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
192	>	SHORT_DELAY_MS, MILLISECONDS);
193	>	assertFalse(f.isDone());
194	>	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
195	>	assertTrue(f.isDone());
196	>	assertEquals(Boolean.TRUE, f.get());
197	>	} finally {
198	>	joinPool(p);
199		}
200		}
201
202		/**
203	<	*
203	>	* a newScheduledThreadPool successfully runs delayed task
204		*/
205	<	public void testInvokeRunnable () {
205	>	public void testnewScheduledThreadPool() throws Exception {
206	>	ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
207		try {
208	<	Executor e = new DirectExecutor();
209	<	MyTask task = new MyTask();
210	<	assertFalse(task.isCompleted());
211	<	Executors.invoke(e, task);
212	<	assertTrue(task.isCompleted());
213	<	}
214	<	catch (ExecutionException ex) {
215	<	unexpectedException();
216	<	}
217	<	catch (InterruptedException ex) {
218	<	unexpectedException();
208	>	final CountDownLatch done = new CountDownLatch(1);
209	>	final Runnable task = new CheckedRunnable() {
210	>	public void realRun() {
211	>	done.countDown();
212	>	}};
213	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
214	>	SHORT_DELAY_MS, MILLISECONDS);
215	>	assertFalse(f.isDone());
216	>	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
217	>	assertTrue(f.isDone());
218	>	assertEquals(Boolean.TRUE, f.get());
219	>	} finally {
220	>	joinPool(p);
221		}
222		}
223
224		/**
225	<	*
225	>	* an unconfigurable newScheduledThreadPool successfully runs delayed task
226		*/
227	<	public void testExecuteCallable () {
227	>	public void testunconfigurableScheduledExecutorService() throws Exception {
228	>	ScheduledExecutorService p =
229	>	Executors.unconfigurableScheduledExecutorService
230	>	(Executors.newScheduledThreadPool(2));
231		try {
232	<	Executor e = new DirectExecutor();
233	<	Future<String> future = Executors.execute(e, new StringTask());
234	<	String result = future.get();
235	<	assertSame(TEST_STRING, result);
236	<	}
237	<	catch (ExecutionException ex) {
238	<	unexpectedException();
232	>	final CountDownLatch done = new CountDownLatch(1);
233	>	final Runnable task = new CheckedRunnable() {
234	>	public void realRun() {
235	>	done.countDown();
236	>	}};
237	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
238	>	SHORT_DELAY_MS, MILLISECONDS);
239	>	assertFalse(f.isDone());
240	>	assertTrue(done.await(SMALL_DELAY_MS, MILLISECONDS));
241	>	assertTrue(f.isDone());
242	>	assertEquals(Boolean.TRUE, f.get());
243	>	} finally {
244	>	joinPool(p);
245		}
246	<	catch (InterruptedException ex) {
247	<	unexpectedException();
246	>	}
247	>
248	>	/**
249	>	* Future.get on submitted tasks will time out if they compute too long.
250	>	*/
251	>	public void testTimedCallable() throws Exception {
252	>	final Runnable sleeper = new CheckedInterruptedRunnable() {
253	>	public void realRun() throws InterruptedException {
254	>	Thread.sleep(LONG_DELAY_MS);
255	>	}};
256	>	for (ExecutorService executor :
257	>	new ExecutorService[] {
258	>	Executors.newSingleThreadExecutor(),
259	>	Executors.newCachedThreadPool(),
260	>	Executors.newFixedThreadPool(2),
261	>	Executors.newScheduledThreadPool(2),
262	>	}) {
263	>	try {
264	>	Future future = executor.submit(sleeper);
265	>	try {
266	>	future.get(SHORT_DELAY_MS, MILLISECONDS);
267	>	shouldThrow();
268	>	} catch (TimeoutException success) {
269	>	} finally {
270	>	future.cancel(true);
271	>	}
272	>	}
273	>	finally {
274	>	joinPool(executor);
275	>	}
276		}
277		}
278
279	+
280		/**
281	<	*
281	>	* ThreadPoolExecutor using defaultThreadFactory has
282	>	* specified group, priority, daemon status, and name
283		*/
284	<	public void testInvokeCallable () {
284	>	public void testDefaultThreadFactory() throws Exception {
285	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
286	>	Runnable r = new CheckedRunnable() {
287	>	public void realRun() {
288	>	try {
289	>	Thread current = Thread.currentThread();
290	>	assertTrue(!current.isDaemon());
291	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
292	>	ThreadGroup g = current.getThreadGroup();
293	>	SecurityManager s = System.getSecurityManager();
294	>	if (s != null)
295	>	assertTrue(g == s.getThreadGroup());
296	>	else
297	>	assertTrue(g == egroup);
298	>	String name = current.getName();
299	>	assertTrue(name.endsWith("thread-1"));
300	>	} catch (SecurityException ok) {
301	>	// Also pass if not allowed to change setting
302	>	}
303	>	}};
304	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
305	>
306	>	e.execute(r);
307		try {
308	<	Executor e = new DirectExecutor();
309	<	String result = Executors.invoke(e, new StringTask());
308	>	e.shutdown();
309	>	} catch (SecurityException ok) {
310	>	}
311	>
312	>	try {
313	>	Thread.sleep(SHORT_DELAY_MS);
314	>	} finally {
315	>	joinPool(e);
316	>	}
317	>	}
318
319	<	assertSame(TEST_STRING, result);
319	>	/**
320	>	* ThreadPoolExecutor using privilegedThreadFactory has
321	>	* specified group, priority, daemon status, name,
322	>	* access control context and context class loader
323	>	*/
324	>	public void testPrivilegedThreadFactory() throws Exception {
325	>	Runnable r = new CheckedRunnable() {
326	>	public void realRun() throws Exception {
327	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
328	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
329	>	final AccessControlContext thisacc = AccessController.getContext();
330	>	Runnable r = new CheckedRunnable() {
331	>	public void realRun() {
332	>	Thread current = Thread.currentThread();
333	>	assertTrue(!current.isDaemon());
334	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
335	>	ThreadGroup g = current.getThreadGroup();
336	>	SecurityManager s = System.getSecurityManager();
337	>	if (s != null)
338	>	assertTrue(g == s.getThreadGroup());
339	>	else
340	>	assertTrue(g == egroup);
341	>	String name = current.getName();
342	>	assertTrue(name.endsWith("thread-1"));
343	>	assertSame(thisccl, current.getContextClassLoader());
344	>	assertEquals(thisacc, AccessController.getContext());
345	>	}};
346	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
347	>	e.execute(r);
348	>	e.shutdown();
349	>	Thread.sleep(SHORT_DELAY_MS);
350	>	joinPool(e);
351	>	}};
352	>
353	>	runWithPermissions(r,
354	>	new RuntimePermission("getClassLoader"),
355	>	new RuntimePermission("setContextClassLoader"),
356	>	new RuntimePermission("modifyThread"));
357	>	}
358	>
359	>	boolean haveCCLPermissions() {
360	>	SecurityManager sm = System.getSecurityManager();
361	>	if (sm != null) {
362	>	try {
363	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
364	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
365	>	} catch (AccessControlException e) {
366	>	return false;
367	>	}
368		}
369	<	catch (ExecutionException ex) {
370	<	unexpectedException();
369	>	return true;
370	>	}
371	>
372	>	void checkCCL() {
373	>	SecurityManager sm = System.getSecurityManager();
374	>	if (sm != null) {
375	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
376	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
377		}
378	<	catch (InterruptedException ex) {
379	<	unexpectedException();
378	>	}
379	>
380	>	class CheckCCL implements Callable<Object> {
381	>	public Object call() {
382	>	checkCCL();
383	>	return null;
384		}
385		}
386
387	+
388		/**
389	<	*  timeouts from execute will time out if they compute too long.
389	>	* Without class loader permissions, creating
390	>	* privilegedCallableUsingCurrentClassLoader throws ACE
391		*/
392	<	public void testTimedCallable() {
393	<	int N = 10000;
394	<	ExecutorService executor = Executors.newSingleThreadExecutor();
395	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
396	<	try {
339	<	long startTime = System.currentTimeMillis();
340	<
341	<	long i = 0;
342	<	while (tasks.size() < N) {
343	<	tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
344	<	i += 10;
345	<	}
346	<
347	<	int iters = 0;
348	<	BigInteger sum = BigInteger.ZERO;
349	<	for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
392	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
393	>	Runnable r = new CheckedRunnable() {
394	>	public void realRun() throws Exception {
395	>	if (System.getSecurityManager() == null)
396	>	return;
397		try {
398	<	++iters;
399	<	sum = sum.add(it.next().call());
400	<	}
401	<	catch (TimeoutException success) {
402	<	assertTrue(iters > 0);
398	>	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
399	>	shouldThrow();
400	>	} catch (AccessControlException success) {}
401	>	}};
402	>
403	>	runWithoutPermissions(r);
404	>	}
405	>
406	>	/**
407	>	* With class loader permissions, calling
408	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
409	>	*/
410	>	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
411	>	Runnable r = new CheckedRunnable() {
412	>	public void realRun() throws Exception {
413	>	Executors.privilegedCallableUsingCurrentClassLoader
414	>	(new NoOpCallable())
415	>	.call();
416	>	}};
417	>
418	>	runWithPermissions(r,
419	>	new RuntimePermission("getClassLoader"),
420	>	new RuntimePermission("setContextClassLoader"));
421	>	}
422	>
423	>	/**
424	>	* Without permissions, calling privilegedCallable throws ACE
425	>	*/
426	>	public void testprivilegedCallableWithNoPrivs() throws Exception {
427	>	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
428	>	Executors.privilegedCallable(new CheckCCL());
429	>
430	>	Runnable r = new CheckedRunnable() {
431	>	public void realRun() throws Exception {
432	>	if (System.getSecurityManager() == null)
433		return;
434	<	}
435	<	catch (Exception e) {
436	<	unexpectedException();
437	<	}
438	<	}
439	<	// if by chance we didn't ever time out, total time must be small
440	<	long elapsed = System.currentTimeMillis() - startTime;
441	<	assertTrue(elapsed < N);
442	<	}
443	<	finally {
444	<	joinPool(executor);
445	<	}
434	>	Callable task = Executors.privilegedCallable(new CheckCCL());
435	>	try {
436	>	task.call();
437	>	shouldThrow();
438	>	} catch (AccessControlException success) {}
439	>	}};
440	>
441	>	runWithoutPermissions(r);
442	>
443	>	// It seems rather difficult to test that the
444	>	// AccessControlContext of the privilegedCallable is used
445	>	// instead of its caller.  Below is a failed attempt to do
446	>	// that, which does not work because the AccessController
447	>	// cannot capture the internal state of the current Policy.
448	>	// It would be much more work to differentiate based on,
449	>	// e.g. CodeSource.
450	>
451	>	//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
452	>	//         final Callable[] task = new Callable[1];
453	>
454	>	//         runWithPermissions
455	>	//             (new CheckedRunnable() {
456	>	//                 public void realRun() {
457	>	//                     if (System.getSecurityManager() == null)
458	>	//                         return;
459	>	//                     noprivAcc[0] = AccessController.getContext();
460	>	//                     task[0] = Executors.privilegedCallable(new CheckCCL());
461	>	//                     try {
462	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
463	>	//                                                           public Void run() {
464	>	//                                                               checkCCL();
465	>	//                                                               return null;
466	>	//                                                           }}, noprivAcc[0]);
467	>	//                         shouldThrow();
468	>	//                     } catch (AccessControlException success) {}
469	>	//                 }});
470	>
471	>	//         runWithPermissions
472	>	//             (new CheckedRunnable() {
473	>	//                 public void realRun() throws Exception {
474	>	//                     if (System.getSecurityManager() == null)
475	>	//                         return;
476	>	//                     // Verify that we have an underprivileged ACC
477	>	//                     try {
478	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
479	>	//                                                           public Void run() {
480	>	//                                                               checkCCL();
481	>	//                                                               return null;
482	>	//                                                           }}, noprivAcc[0]);
483	>	//                         shouldThrow();
484	>	//                     } catch (AccessControlException success) {}
485	>
486	>	//                     try {
487	>	//                         task[0].call();
488	>	//                         shouldThrow();
489	>	//                     } catch (AccessControlException success) {}
490	>	//                 }},
491	>	//              new RuntimePermission("getClassLoader"),
492	>	//              new RuntimePermission("setContextClassLoader"));
493	>	}
494	>
495	>	/**
496	>	* With permissions, calling privilegedCallable succeeds
497	>	*/
498	>	public void testprivilegedCallableWithPrivs() throws Exception {
499	>	Runnable r = new CheckedRunnable() {
500	>	public void realRun() throws Exception {
501	>	Executors.privilegedCallable(new CheckCCL()).call();
502	>	}};
503	>
504	>	runWithPermissions(r,
505	>	new RuntimePermission("getClassLoader"),
506	>	new RuntimePermission("setContextClassLoader"));
507		}
508
509	<
509	>	/**
510	>	* callable(Runnable) returns null when called
511	>	*/
512	>	public void testCallable1() throws Exception {
513	>	Callable c = Executors.callable(new NoOpRunnable());
514	>	assertNull(c.call());
515	>	}
516	>
517	>	/**
518	>	* callable(Runnable, result) returns result when called
519	>	*/
520	>	public void testCallable2() throws Exception {
521	>	Callable c = Executors.callable(new NoOpRunnable(), one);
522	>	assertSame(one, c.call());
523	>	}
524	>
525	>	/**
526	>	* callable(PrivilegedAction) returns its result when called
527	>	*/
528	>	public void testCallable3() throws Exception {
529	>	Callable c = Executors.callable(new PrivilegedAction() {
530	>	public Object run() { return one; }});
531	>	assertSame(one, c.call());
532	>	}
533	>
534	>	/**
535	>	* callable(PrivilegedExceptionAction) returns its result when called
536	>	*/
537	>	public void testCallable4() throws Exception {
538	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
539	>	public Object run() { return one; }});
540	>	assertSame(one, c.call());
541	>	}
542	>
543	>
544	>	/**
545	>	* callable(null Runnable) throws NPE
546	>	*/
547	>	public void testCallableNPE1() {
548	>	try {
549	>	Callable c = Executors.callable((Runnable) null);
550	>	shouldThrow();
551	>	} catch (NullPointerException success) {}
552	>	}
553	>
554	>	/**
555	>	* callable(null, result) throws NPE
556	>	*/
557	>	public void testCallableNPE2() {
558	>	try {
559	>	Callable c = Executors.callable((Runnable) null, one);
560	>	shouldThrow();
561	>	} catch (NullPointerException success) {}
562	>	}
563	>
564	>	/**
565	>	* callable(null PrivilegedAction) throws NPE
566	>	*/
567	>	public void testCallableNPE3() {
568	>	try {
569	>	Callable c = Executors.callable((PrivilegedAction) null);
570	>	shouldThrow();
571	>	} catch (NullPointerException success) {}
572	>	}
573	>
574	>	/**
575	>	* callable(null PrivilegedExceptionAction) throws NPE
576	>	*/
577	>	public void testCallableNPE4() {
578	>	try {
579	>	Callable c = Executors.callable((PrivilegedExceptionAction) null);
580	>	shouldThrow();
581	>	} catch (NullPointerException success) {}
582	>	}
583
584
585		}

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