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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 1.34 by jsr166, Sat Oct 9 19:30:35 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";
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	<	private static class MyTask implements Runnable {
37	<	public void run() { completed = true; }
38	<	public boolean isCompleted() { return completed; }
39	<	public void reset() { completed = false; }
40	<	private boolean completed = false;
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	<	private static class StringTask implements Callable<String> {
48	<	public String call() { return TEST_STRING; }
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	<	static class DirectExecutor implements Executor {
58	<	public void execute(Runnable r) {
59	<	r.run();
60	<	}
57	>
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	<	static class TimedCallable<T> implements Callable<T> {
70	<	private final Executor exec;
71	<	private final Callable<T> func;
72	<	private final long msecs;
73	<
74	<	TimedCallable(Executor exec, Callable<T> func, long msecs) {
75	<	this.exec = exec;
76	<	this.func = func;
77	<	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	<	}
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	+	* A new SingleThreadExecutor with null ThreadFactory throws NPE
82	+	*/
83	+	public void testNewSingleThreadExecutor3() {
84	+	try {
85	+	ExecutorService e = Executors.newSingleThreadExecutor(null);
86	+	shouldThrow();
87	+	} catch (NullPointerException success) {}
88	+	}
89
90	<	private static class Fib implements Callable<BigInteger> {
91	<	private final BigInteger n;
92	<	Fib(long n) {
93	<	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
94	<	this.n = BigInteger.valueOf(n);
95	<	}
96	<	public BigInteger call() {
97	<	BigInteger f1 = BigInteger.ONE;
98	<	BigInteger f2 = f1;
99	<	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
100	<	BigInteger t = f1.add(f2);
75	<	f1 = f2;
76	<	f2 = t;
77	<	}
78	<	return f1;
90	>	/**
91	>	* A new SingleThreadExecutor cannot be casted to concrete implementation
92	>	*/
93	>	public void testCastNewSingleThreadExecutor() {
94	>	ExecutorService e = Executors.newSingleThreadExecutor();
95	>	try {
96	>	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
97	>	shouldThrow();
98	>	} catch (ClassCastException success) {
99	>	} finally {
100	>	joinPool(e);
101		}
102	<	};
102	>	}
103	>
104
105	+	/**
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	+	* 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	<	*   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
128	>	* A new newFixedThreadPool with null ThreadFactory throws NPE
129		*/
130	<	public void testExecute1() {
92	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
130	>	public void testNewFixedThreadPool3() {
131		try {
132	<
95	<	for(int i = 0; i < 5; ++i){
96	<	Executors.execute(p, new MediumRunnable(), Boolean.TRUE);
97	<	}
132	>	ExecutorService e = Executors.newFixedThreadPool(2, null);
133		shouldThrow();
134	<	} catch(RejectedExecutionException success){}
100	<	joinPool(p);
134	>	} catch (NullPointerException success) {}
135		}
136
137		/**
138	<	*   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
138	>	* A new newFixedThreadPool with 0 threads throws IAE
139		*/
140	<	public void testExecute2() {
111	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
140	>	public void testNewFixedThreadPool4() {
141		try {
142	<	for(int i = 0; i < 5; ++i) {
114	<	Executors.execute(p, new SmallCallable());
115	<	}
142	>	ExecutorService e = Executors.newFixedThreadPool(0);
143		shouldThrow();
144	<	} catch(RejectedExecutionException e){}
118	<	joinPool(p);
144	>	} catch (IllegalArgumentException success) {}
145		}
146
147
148		/**
149	<	*   invoke(Executor, Runnable) throws InterruptedException
150	<	*  A single use of invoke starts that will wait long enough
151	<	*  for the invoking thread to be interrupted
152	<	*/
153	<	public void testInvoke2() {
154	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
155	<	Thread t = new Thread(new Runnable() {
156	<	public void run() {
157	<	try {
158	<	Executors.invoke(p,new Runnable() {
159	<	public void run() {
160	<	try {
161	<	Thread.sleep(MEDIUM_DELAY_MS);
162	<	shouldThrow();
137	<	} catch(InterruptedException e){
138	<	}
139	<	}
140	<	});
141	<	} catch(InterruptedException success){
142	<	} catch(Exception e) {
143	<	unexpectedException();
144	<	}
145	<
146	<	}
147	<	});
149	>	* An unconfigurable newFixedThreadPool can execute runnables
150	>	*/
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	>	* unconfigurableExecutorService(null) throws NPE
161	>	*/
162	>	public void testunconfigurableExecutorServiceNPE() {
163		try {
164	<	t.start();
165	<	Thread.sleep(SHORT_DELAY_MS);
166	<	t.interrupt();
152	<	} catch(Exception e){
153	<	unexpectedException();
154	<	}
155	<	joinPool(p);
164	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
165	>	shouldThrow();
166	>	} catch (NullPointerException success) {}
167		}
168
169		/**
170	<	*   invoke(Executor, Runnable) will throw
171	<	*  ExecutionException An ExecutionException occurs when the
172	<	*  underlying Runnable throws an exception, here the
173	<	*  DivideByZeroException will cause an ExecutionException
174	<	*/
164	<	public void testInvoke3() {
165	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
166	<	try {
167	<	Runnable r = new Runnable() {
168	<	public void run() {
169	<	int i = 5/0;
170	<	}
171	<	};
172	<
173	<	for(int i =0; i < 5; i++){
174	<	Executors.invoke(p,r);
175	<	}
176	<
170	>	* unconfigurableScheduledExecutorService(null) throws NPE
171	>	*/
172	>	public void testunconfigurableScheduledExecutorServiceNPE() {
173	>	try {
174	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
175		shouldThrow();
176	<	} catch(ExecutionException success){
179	<	} catch(Exception e){
180	<	unexpectedException();
181	<	}
182	<	joinPool(p);
176	>	} catch (NullPointerException success) {}
177		}
178
179
180	+	/**
181	+	* a newSingleThreadScheduledExecutor successfully runs delayed task
182	+	*/
183	+	public void testNewSingleThreadScheduledExecutor() throws Exception {
184	+	TrackedCallable callable = new TrackedCallable();
185	+	ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
186	+	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
187	+	assertFalse(callable.done);
188	+	Thread.sleep(MEDIUM_DELAY_MS);
189	+	assertTrue(callable.done);
190	+	assertEquals(Boolean.TRUE, f.get());
191	+	joinPool(p1);
192	+	}
193
194		/**
195	<	*   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
195	>	* a newScheduledThreadPool successfully runs delayed task
196		*/
197	<	public void testInvoke5() {
198	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
199	<
200	<	final Callable c = new Callable() {
201	<	public Object call() {
202	<	try {
203	<	Executors.invoke(p, new SmallCallable());
204	<	shouldThrow();
205	<	} catch(InterruptedException e){}
206	<	catch(RejectedExecutionException e2){}
202	<	catch(ExecutionException e3){}
203	<	return Boolean.TRUE;
204	<	}
205	<	};
197	>	public void testnewScheduledThreadPool() throws Exception {
198	>	TrackedCallable callable = new TrackedCallable();
199	>	ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
200	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
201	>	assertFalse(callable.done);
202	>	Thread.sleep(MEDIUM_DELAY_MS);
203	>	assertTrue(callable.done);
204	>	assertEquals(Boolean.TRUE, f.get());
205	>	joinPool(p1);
206	>	}
207
208	+	/**
209	+	* an unconfigurable newScheduledThreadPool successfully runs delayed task
210	+	*/
211	+	public void testunconfigurableScheduledExecutorService() throws Exception {
212	+	TrackedCallable callable = new TrackedCallable();
213	+	ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
214	+	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
215	+	assertFalse(callable.done);
216	+	Thread.sleep(MEDIUM_DELAY_MS);
217	+	assertTrue(callable.done);
218	+	assertEquals(Boolean.TRUE, f.get());
219	+	joinPool(p1);
220	+	}
221
222	<
223	<	Thread t = new Thread(new Runnable() {
224	<	public void run() {
225	<	try {
226	<	c.call();
227	<	} catch(Exception e){}
222	>	/**
223	>	* Future.get on submitted tasks will time out if they compute too long.
224	>	*/
225	>	public void testTimedCallable() throws Exception {
226	>	final Runnable sleeper = new CheckedInterruptedRunnable() {
227	>	public void realRun() throws InterruptedException {
228	>	Thread.sleep(LONG_DELAY_MS);
229	>	}};
230	>	for (ExecutorService executor :
231	>	new ExecutorService[] {
232	>	Executors.newSingleThreadExecutor(),
233	>	Executors.newCachedThreadPool(),
234	>	Executors.newFixedThreadPool(2),
235	>	Executors.newScheduledThreadPool(2),
236	>	}) {
237	>	try {
238	>	Future future = executor.submit(sleeper);
239	>	try {
240	>	future.get(SHORT_DELAY_MS, MILLISECONDS);
241	>	shouldThrow();
242	>	} catch (TimeoutException success) {
243	>	} finally {
244	>	future.cancel(true);
245		}
246	<	});
247	<	try {
248	<	t.start();
249	<	Thread.sleep(SHORT_DELAY_MS);
219	<	t.interrupt();
220	<	t.join();
221	<	} catch(InterruptedException e){
222	<	unexpectedException();
246	>	}
247	>	finally {
248	>	joinPool(executor);
249	>	}
250		}
224	–
225	–	joinPool(p);
251		}
252
253	+
254		/**
255	<	*   invoke(Executor, Callable) will throw ExecutionException
256	<	*  An ExecutionException occurs when the underlying Runnable throws
231	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
255	>	* ThreadPoolExecutor using defaultThreadFactory has
256	>	* specified group, priority, daemon status, and name
257		*/
258	<	public void testInvoke6() {
259	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
258	>	public void testDefaultThreadFactory() throws Exception {
259	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
260	>	Runnable r = new CheckedRunnable() {
261	>	public void realRun() {
262	>	try {
263	>	Thread current = Thread.currentThread();
264	>	assertTrue(!current.isDaemon());
265	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
266	>	ThreadGroup g = current.getThreadGroup();
267	>	SecurityManager s = System.getSecurityManager();
268	>	if (s != null)
269	>	assertTrue(g == s.getThreadGroup());
270	>	else
271	>	assertTrue(g == egroup);
272	>	String name = current.getName();
273	>	assertTrue(name.endsWith("thread-1"));
274	>	} catch (SecurityException ok) {
275	>	// Also pass if not allowed to change setting
276	>	}
277	>	}};
278	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
279
280	+	e.execute(r);
281		try {
282	<	Callable c = new Callable() {
283	<	public Object call() {
284	<	int i = 5/0;
285	<	return Boolean.TRUE;
286	<	}
287	<	};
288	<
289	<	for(int i =0; i < 5; i++){
290	<	Executors.invoke(p,c);
246	<	}
247	<
248	<	shouldThrow();
249	<	} catch(RejectedExecutionException e){}
250	<	catch(InterruptedException e2){}
251	<	catch(ExecutionException e3){}
252	<	joinPool(p);
282	>	e.shutdown();
283	>	} catch (SecurityException ok) {
284	>	}
285	>
286	>	try {
287	>	Thread.sleep(SHORT_DELAY_MS);
288	>	} finally {
289	>	joinPool(e);
290	>	}
291		}
292
293		/**
294	<	*
295	<	*/
296	<	public void testExecuteRunnable () {
297	<	try {
298	<	Executor e = new DirectExecutor();
299	<	MyTask task = new MyTask();
300	<	assertFalse(task.isCompleted());
301	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
302	<	String result = future.get();
303	<	assertTrue(task.isCompleted());
304	<	assertSame(TEST_STRING, result);
294	>	* ThreadPoolExecutor using privilegedThreadFactory has
295	>	* specified group, priority, daemon status, name,
296	>	* access control context and context class loader
297	>	*/
298	>	public void testPrivilegedThreadFactory() throws Exception {
299	>	Runnable r = new CheckedRunnable() {
300	>	public void realRun() throws Exception {
301	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
302	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
303	>	final AccessControlContext thisacc = AccessController.getContext();
304	>	Runnable r = new CheckedRunnable() {
305	>	public void realRun() {
306	>	Thread current = Thread.currentThread();
307	>	assertTrue(!current.isDaemon());
308	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
309	>	ThreadGroup g = current.getThreadGroup();
310	>	SecurityManager s = System.getSecurityManager();
311	>	if (s != null)
312	>	assertTrue(g == s.getThreadGroup());
313	>	else
314	>	assertTrue(g == egroup);
315	>	String name = current.getName();
316	>	assertTrue(name.endsWith("thread-1"));
317	>	assertSame(thisccl, current.getContextClassLoader());
318	>	assertEquals(thisacc, AccessController.getContext());
319	>	}};
320	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
321	>	e.execute(r);
322	>	e.shutdown();
323	>	Thread.sleep(SHORT_DELAY_MS);
324	>	joinPool(e);
325	>	}};
326	>
327	>	runWithPermissions(r,
328	>	new RuntimePermission("getClassLoader"),
329	>	new RuntimePermission("setContextClassLoader"),
330	>	new RuntimePermission("modifyThread"));
331	>	}
332	>
333	>	boolean haveCCLPermissions() {
334	>	SecurityManager sm = System.getSecurityManager();
335	>	if (sm != null) {
336	>	try {
337	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
338	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
339	>	} catch (AccessControlException e) {
340	>	return false;
341	>	}
342		}
343	<	catch (ExecutionException ex) {
344	<	unexpectedException();
343	>	return true;
344	>	}
345	>
346	>	void checkCCL() {
347	>	SecurityManager sm = System.getSecurityManager();
348	>	if (sm != null) {
349	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
350	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
351		}
352	<	catch (InterruptedException ex) {
353	<	unexpectedException();
352	>	}
353	>
354	>	class CheckCCL implements Callable<Object> {
355	>	public Object call() {
356	>	checkCCL();
357	>	return null;
358		}
359		}
360
361	+
362		/**
363	<	*
363	>	* Without class loader permissions, creating
364	>	* privilegedCallableUsingCurrentClassLoader throws ACE
365		*/
366	<	public void testInvokeRunnable () {
367	<	try {
368	<	Executor e = new DirectExecutor();
369	<	MyTask task = new MyTask();
370	<	assertFalse(task.isCompleted());
371	<	Executors.invoke(e, task);
372	<	assertTrue(task.isCompleted());
373	<	}
374	<	catch (ExecutionException ex) {
375	<	unexpectedException();
376	<	}
377	<	catch (InterruptedException ex) {
291	<	unexpectedException();
292	<	}
366	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
367	>	Runnable r = new CheckedRunnable() {
368	>	public void realRun() throws Exception {
369	>	if (System.getSecurityManager() == null)
370	>	return;
371	>	try {
372	>	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
373	>	shouldThrow();
374	>	} catch (AccessControlException success) {}
375	>	}};
376	>
377	>	runWithoutPermissions(r);
378		}
379
380		/**
381	<	*
381	>	* With class loader permissions, calling
382	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
383		*/
384	<	public void testExecuteCallable () {
385	<	try {
386	<	Executor e = new DirectExecutor();
387	<	Future<String> future = Executors.execute(e, new StringTask());
388	<	String result = future.get();
389	<	assertSame(TEST_STRING, result);
390	<	}
391	<	catch (ExecutionException ex) {
392	<	unexpectedException();
393	<	}
394	<	catch (InterruptedException ex) {
395	<	unexpectedException();
396	<	}
384	>	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
385	>	Runnable r = new CheckedRunnable() {
386	>	public void realRun() throws Exception {
387	>	Executors.privilegedCallableUsingCurrentClassLoader
388	>	(new NoOpCallable())
389	>	.call();
390	>	}};
391	>
392	>	runWithPermissions(r,
393	>	new RuntimePermission("getClassLoader"),
394	>	new RuntimePermission("setContextClassLoader"));
395	>	}
396	>
397	>	/**
398	>	* Without permissions, calling privilegedCallable throws ACE
399	>	*/
400	>	public void testprivilegedCallableWithNoPrivs() throws Exception {
401	>	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
402	>	Executors.privilegedCallable(new CheckCCL());
403	>
404	>	Runnable r = new CheckedRunnable() {
405	>	public void realRun() throws Exception {
406	>	if (System.getSecurityManager() == null)
407	>	return;
408	>	Callable task = Executors.privilegedCallable(new CheckCCL());
409	>	try {
410	>	task.call();
411	>	shouldThrow();
412	>	} catch (AccessControlException success) {}
413	>	}};
414	>
415	>	runWithoutPermissions(r);
416	>
417	>	// It seems rather difficult to test that the
418	>	// AccessControlContext of the privilegedCallable is used
419	>	// instead of its caller.  Below is a failed attempt to do
420	>	// that, which does not work because the AccessController
421	>	// cannot capture the internal state of the current Policy.
422	>	// It would be much more work to differentiate based on,
423	>	// e.g. CodeSource.
424	>
425	>	//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
426	>	//         final Callable[] task = new Callable[1];
427	>
428	>	//         runWithPermissions
429	>	//             (new CheckedRunnable() {
430	>	//                 public void realRun() {
431	>	//                     if (System.getSecurityManager() == null)
432	>	//                         return;
433	>	//                     noprivAcc[0] = AccessController.getContext();
434	>	//                     task[0] = Executors.privilegedCallable(new CheckCCL());
435	>	//                     try {
436	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
437	>	//                                                           public Void run() {
438	>	//                                                               checkCCL();
439	>	//                                                               return null;
440	>	//                                                           }}, noprivAcc[0]);
441	>	//                         shouldThrow();
442	>	//                     } catch (AccessControlException success) {}
443	>	//                 }});
444	>
445	>	//         runWithPermissions
446	>	//             (new CheckedRunnable() {
447	>	//                 public void realRun() throws Exception {
448	>	//                     if (System.getSecurityManager() == null)
449	>	//                         return;
450	>	//                     // Verify that we have an underprivileged ACC
451	>	//                     try {
452	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
453	>	//                                                           public Void run() {
454	>	//                                                               checkCCL();
455	>	//                                                               return null;
456	>	//                                                           }}, noprivAcc[0]);
457	>	//                         shouldThrow();
458	>	//                     } catch (AccessControlException success) {}
459	>
460	>	//                     try {
461	>	//                         task[0].call();
462	>	//                         shouldThrow();
463	>	//                     } catch (AccessControlException success) {}
464	>	//                 }},
465	>	//              new RuntimePermission("getClassLoader"),
466	>	//              new RuntimePermission("setContextClassLoader"));
467	>	}
468	>
469	>	/**
470	>	* With permissions, calling privilegedCallable succeeds
471	>	*/
472	>	public void testprivilegedCallableWithPrivs() throws Exception {
473	>	Runnable r = new CheckedRunnable() {
474	>	public void realRun() throws Exception {
475	>	Executors.privilegedCallable(new CheckCCL()).call();
476	>	}};
477	>
478	>	runWithPermissions(r,
479	>	new RuntimePermission("getClassLoader"),
480	>	new RuntimePermission("setContextClassLoader"));
481	>	}
482	>
483	>	/**
484	>	* callable(Runnable) returns null when called
485	>	*/
486	>	public void testCallable1() throws Exception {
487	>	Callable c = Executors.callable(new NoOpRunnable());
488	>	assertNull(c.call());
489	>	}
490	>
491	>	/**
492	>	* callable(Runnable, result) returns result when called
493	>	*/
494	>	public void testCallable2() throws Exception {
495	>	Callable c = Executors.callable(new NoOpRunnable(), one);
496	>	assertSame(one, c.call());
497	>	}
498	>
499	>	/**
500	>	* callable(PrivilegedAction) returns its result when called
501	>	*/
502	>	public void testCallable3() throws Exception {
503	>	Callable c = Executors.callable(new PrivilegedAction() {
504	>	public Object run() { return one; }});
505	>	assertSame(one, c.call());
506		}
507
508		/**
509	<	*
509	>	* callable(PrivilegedExceptionAction) returns its result when called
510		*/
511	<	public void testInvokeCallable () {
511	>	public void testCallable4() throws Exception {
512	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
513	>	public Object run() { return one; }});
514	>	assertSame(one, c.call());
515	>	}
516	>
517	>
518	>	/**
519	>	* callable(null Runnable) throws NPE
520	>	*/
521	>	public void testCallableNPE1() {
522		try {
523	<	Executor e = new DirectExecutor();
524	<	String result = Executors.invoke(e, new StringTask());
523	>	Callable c = Executors.callable((Runnable) null);
524	>	shouldThrow();
525	>	} catch (NullPointerException success) {}
526	>	}
527
528	<	assertSame(TEST_STRING, result);
529	<	}
530	<	catch (ExecutionException ex) {
531	<	unexpectedException();
532	<	}
533	<	catch (InterruptedException ex) {
534	<	unexpectedException();
535	<	}
528	>	/**
529	>	* callable(null, result) throws NPE
530	>	*/
531	>	public void testCallableNPE2() {
532	>	try {
533	>	Callable c = Executors.callable((Runnable) null, one);
534	>	shouldThrow();
535	>	} catch (NullPointerException success) {}
536		}
537
538		/**
539	<	*  timeouts from execute will time out if they compute too long.
539	>	* callable(null PrivilegedAction) throws NPE
540		*/
541	<	public void testTimedCallable() {
542	<	int N = 10000;
543	<	ExecutorService executor = Executors.newSingleThreadExecutor();
544	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
545	<	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();) {
350	<	try {
351	<	++iters;
352	<	sum = sum.add(it.next().call());
353	<	}
354	<	catch (TimeoutException success) {
355	<	assertTrue(iters > 0);
356	<	return;
357	<	}
358	<	catch (Exception e) {
359	<	unexpectedException();
360	<	}
361	<	}
362	<	// if by chance we didn't ever time out, total time must be small
363	<	long elapsed = System.currentTimeMillis() - startTime;
364	<	assertTrue(elapsed < N);
365	<	}
366	<	finally {
367	<	joinPool(executor);
368	<	}
541	>	public void testCallableNPE3() {
542	>	try {
543	>	Callable c = Executors.callable((PrivilegedAction) null);
544	>	shouldThrow();
545	>	} catch (NullPointerException success) {}
546		}
547
548	<
548	>	/**
549	>	* callable(null PrivilegedExceptionAction) throws NPE
550	>	*/
551	>	public void testCallableNPE4() {
552	>	try {
553	>	Callable c = Executors.callable((PrivilegedExceptionAction) null);
554	>	shouldThrow();
555	>	} catch (NullPointerException success) {}
556	>	}
557
558
559		}

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