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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 1.28 by jsr166, Wed Dec 2 19:17:01 2009 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
124	<	*  A single use of invoke starts that will wait long enough
125	<	*  for the invoking thread to be interrupted
149	>	* An unconfigurable newFixedThreadPool can execute runnables
150		*/
151	<	public void testInvoke2() {
152	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
153	<	Thread t = new Thread(new Runnable() {
154	<	public void run() {
155	<	try {
156	<	Executors.invoke(p,new Runnable() {
157	<	public void run() {
158	<	try {
159	<	Thread.sleep(MEDIUM_DELAY_MS);
160	<	shouldThrow();
161	<	} catch(InterruptedException e){
162	<	}
139	<	}
140	<	});
141	<	} catch(InterruptedException success){
142	<	} catch(Exception e) {
143	<	unexpectedException();
144	<	}
145	<
146	<	}
147	<	});
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
160	<	*  ExecutionException An ExecutionException occurs when the
161	<	*  underlying Runnable throws an exception, here the
162	<	*  DivideByZeroException will cause an ExecutionException
170	>	* unconfigurableScheduledExecutorService(null) throws NPE
171		*/
172	<	public void testInvoke3() {
165	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
172	>	public void testunconfigurableScheduledExecutorServiceNPE() {
173		try {
174	<	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	<
174	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
175		shouldThrow();
176	<	} catch(ExecutionException success){
177	<	} catch(Exception e){
178	<	unexpectedException();
179	<	}
180	<	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	>	* a newScheduledThreadPool successfully runs delayed task
196	>	*/
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	+	*  Future.get on submitted tasks will time out if they compute too long.
224	+	*/
225	+	public void testTimedCallable() throws Exception {
226	+	final Runnable sleeper =
227	+	new RunnableShouldThrow(InterruptedException.class) {
228	+	public void realRun() throws InterruptedException {
229	+	Thread.sleep(LONG_DELAY_MS);
230	+	}};
231	+	for (ExecutorService executor :
232	+	new ExecutorService[] {
233	+	Executors.newSingleThreadExecutor(),
234	+	Executors.newCachedThreadPool(),
235	+	Executors.newFixedThreadPool(2),
236	+	Executors.newScheduledThreadPool(2),
237	+	}) {
238	+	try {
239	+	Future future = executor.submit(sleeper);
240	+	try {
241	+	future.get(SHORT_DELAY_MS, MILLISECONDS);
242	+	shouldThrow();
243	+	} catch (TimeoutException success) {
244	+	} finally {
245	+	future.cancel(true);
246	+	}
247	+	}
248	+	finally {
249	+	joinPool(executor);
250	+	}
251	+	}
252	+	}
253
254
255		/**
256	<	*   invoke(Executor, Callable) throws
257	<	*  InterruptedException A single use of invoke starts that will
190	<	*  wait long enough for the invoking thread to be interrupted
256	>	* ThreadPoolExecutor using defaultThreadFactory has
257	>	* specified group, priority, daemon status, and name
258		*/
259	<	public void testInvoke5() {
260	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
261	<
262	<	final Callable c = new Callable() {
196	<	public Object call() {
259	>	public void testDefaultThreadFactory() throws Exception {
260	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
261	>	Runnable r = new Runnable() {
262	>	public void run() {
263		try {
264	<	Executors.invoke(p, new SmallCallable());
265	<	shouldThrow();
266	<	} catch(InterruptedException e){}
267	<	catch(RejectedExecutionException e2){}
268	<	catch(ExecutionException e3){}
269	<	return Boolean.TRUE;
264	>	Thread current = Thread.currentThread();
265	>	threadAssertTrue(!current.isDaemon());
266	>	threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
267	>	ThreadGroup g = current.getThreadGroup();
268	>	SecurityManager s = System.getSecurityManager();
269	>	if (s != null)
270	>	threadAssertTrue(g == s.getThreadGroup());
271	>	else
272	>	threadAssertTrue(g == egroup);
273	>	String name = current.getName();
274	>	threadAssertTrue(name.endsWith("thread-1"));
275	>	} catch (SecurityException ok) {
276	>	// Also pass if not allowed to change setting
277	>	}
278		}
279		};
280	+	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
281
282	+	e.execute(r);
283	+	try {
284	+	e.shutdown();
285	+	} catch (SecurityException ok) {
286	+	}
287
288	<
289	<	Thread t = new Thread(new Runnable() {
288	>	try {
289	>	Thread.sleep(SHORT_DELAY_MS);
290	>	} finally {
291	>	joinPool(e);
292	>	}
293	>	}
294	>
295	>	/**
296	>	* ThreadPoolExecutor using privilegedThreadFactory has
297	>	* specified group, priority, daemon status, name,
298	>	* access control context and context class loader
299	>	*/
300	>	public void testPrivilegedThreadFactory() throws Exception {
301	>	Policy savedPolicy = null;
302	>	try {
303	>	savedPolicy = Policy.getPolicy();
304	>	AdjustablePolicy policy = new AdjustablePolicy();
305	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
306	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
307	>	Policy.setPolicy(policy);
308	>	} catch (AccessControlException ok) {
309	>	return;
310	>	}
311	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
312	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
313	>	final AccessControlContext thisacc = AccessController.getContext();
314	>	Runnable r = new Runnable() {
315		public void run() {
316		try {
317	<	c.call();
318	<	} catch(Exception e){}
317	>	Thread current = Thread.currentThread();
318	>	threadAssertTrue(!current.isDaemon());
319	>	threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
320	>	ThreadGroup g = current.getThreadGroup();
321	>	SecurityManager s = System.getSecurityManager();
322	>	if (s != null)
323	>	threadAssertTrue(g == s.getThreadGroup());
324	>	else
325	>	threadAssertTrue(g == egroup);
326	>	String name = current.getName();
327	>	threadAssertTrue(name.endsWith("thread-1"));
328	>	threadAssertTrue(thisccl == current.getContextClassLoader());
329	>	threadAssertTrue(thisacc.equals(AccessController.getContext()));
330	>	} catch (SecurityException ok) {
331	>	// Also pass if not allowed to change settings
332	>	}
333		}
334	<	});
334	>	};
335	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
336	>
337	>	Policy.setPolicy(savedPolicy);
338	>	e.execute(r);
339	>	try {
340	>	e.shutdown();
341	>	} catch (SecurityException ok) {
342	>	}
343		try {
217	–	t.start();
344		Thread.sleep(SHORT_DELAY_MS);
345	<	t.interrupt();
346	<	t.join();
347	<	} catch(InterruptedException e){
348	<	unexpectedException();
345	>	} finally {
346	>	joinPool(e);
347	>	}
348	>	}
349	>
350	>	void checkCCL() {
351	>	SecurityManager sm = System.getSecurityManager();
352	>	if (sm != null) {
353	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
354	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
355		}
224	–
225	–	joinPool(p);
356		}
357
358	+	class CheckCCL implements Callable<Object> {
359	+	public Object call() {
360	+	checkCCL();
361	+	return null;
362	+	}
363	+	}
364	+
365	+
366		/**
367	<	*   invoke(Executor, Callable) will throw ExecutionException
368	<	*  An ExecutionException occurs when the underlying Runnable throws
231	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
367	>	* Without class loader permissions, creating
368	>	* privilegedCallableUsingCurrentClassLoader throws ACE
369		*/
370	<	public void testInvoke6() {
371	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
370	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
371	>	Policy savedPolicy = null;
372	>	try {
373	>	savedPolicy = Policy.getPolicy();
374	>	AdjustablePolicy policy = new AdjustablePolicy();
375	>	Policy.setPolicy(policy);
376	>	} catch (AccessControlException ok) {
377	>	return;
378	>	}
379
380	+	// Check if program still has too many permissions to run test
381		try {
382	<	Callable c = new Callable() {
383	<	public Object call() {
384	<	int i = 5/0;
385	<	return Boolean.TRUE;
386	<	}
387	<	};
388	<
389	<	for(int i =0; i < 5; i++){
390	<	Executors.invoke(p,c);
246	<	}
247	<
382	>	checkCCL();
383	>	// too many privileges to test; so return
384	>	Policy.setPolicy(savedPolicy);
385	>	return;
386	>	} catch (AccessControlException ok) {
387	>	}
388	>
389	>	try {
390	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
391		shouldThrow();
392	<	} catch(RejectedExecutionException e){}
393	<	catch(InterruptedException e2){}
394	<	catch(ExecutionException e3){}
395	<	joinPool(p);
392	>	} catch (AccessControlException success) {
393	>	} finally {
394	>	Policy.setPolicy(savedPolicy);
395	>	}
396		}
397
398		/**
399	<	*
399	>	* With class loader permissions, calling
400	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
401		*/
402	<	public void testExecuteRunnable () {
402	>	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
403	>	Policy savedPolicy = null;
404		try {
405	<	Executor e = new DirectExecutor();
406	<	MyTask task = new MyTask();
407	<	assertFalse(task.isCompleted());
408	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
409	<	String result = future.get();
410	<	assertTrue(task.isCompleted());
411	<	assertSame(TEST_STRING, result);
405	>	savedPolicy = Policy.getPolicy();
406	>	AdjustablePolicy policy = new AdjustablePolicy();
407	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
408	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
409	>	Policy.setPolicy(policy);
410	>	} catch (AccessControlException ok) {
411	>	return;
412		}
413	<	catch (ExecutionException ex) {
414	<	unexpectedException();
413	>
414	>	try {
415	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
416	>	task.call();
417		}
418	<	catch (InterruptedException ex) {
419	<	unexpectedException();
418	>	finally {
419	>	Policy.setPolicy(savedPolicy);
420		}
421		}
422
423		/**
424	<	*
424	>	* Without permissions, calling privilegedCallable throws ACE
425		*/
426	<	public void testInvokeRunnable () {
426	>	public void testprivilegedCallableWithNoPrivs() throws Exception {
427	>	Callable task;
428	>	Policy savedPolicy = null;
429	>	AdjustablePolicy policy = null;
430	>	AccessControlContext noprivAcc = null;
431		try {
432	<	Executor e = new DirectExecutor();
433	<	MyTask task = new MyTask();
434	<	assertFalse(task.isCompleted());
435	<	Executors.invoke(e, task);
436	<	assertTrue(task.isCompleted());
432	>	savedPolicy = Policy.getPolicy();
433	>	policy = new AdjustablePolicy();
434	>	Policy.setPolicy(policy);
435	>	noprivAcc = AccessController.getContext();
436	>	task = Executors.privilegedCallable(new CheckCCL());
437	>	Policy.setPolicy(savedPolicy);
438	>	} catch (AccessControlException ok) {
439	>	return; // program has too few permissions to set up test
440		}
441	<	catch (ExecutionException ex) {
442	<	unexpectedException();
443	<	}
444	<	catch (InterruptedException ex) {
445	<	unexpectedException();
441	>
442	>	// Make sure that program doesn't have too many permissions
443	>	try {
444	>	AccessController.doPrivileged(new PrivilegedAction() {
445	>	public Object run() {
446	>	checkCCL();
447	>	return null;
448	>	}}, noprivAcc);
449	>	// too many permssions; skip test
450	>	return;
451	>	} catch (AccessControlException ok) {
452		}
453	+
454	+	try {
455	+	task.call();
456	+	shouldThrow();
457	+	} catch (AccessControlException success) {}
458		}
459
460		/**
461	<	*
461	>	* With permissions, calling privilegedCallable succeeds
462		*/
463	<	public void testExecuteCallable () {
463	>	public void testprivilegedCallableWithPrivs() throws Exception {
464	>	Policy savedPolicy = null;
465		try {
466	<	Executor e = new DirectExecutor();
467	<	Future<String> future = Executors.execute(e, new StringTask());
468	<	String result = future.get();
469	<	assertSame(TEST_STRING, result);
470	<	}
471	<	catch (ExecutionException ex) {
472	<	unexpectedException();
466	>	savedPolicy = Policy.getPolicy();
467	>	AdjustablePolicy policy = new AdjustablePolicy();
468	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
469	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
470	>	Policy.setPolicy(policy);
471	>	} catch (AccessControlException ok) {
472	>	return;
473		}
474	<	catch (InterruptedException ex) {
475	<	unexpectedException();
474	>
475	>	Callable task = Executors.privilegedCallable(new CheckCCL());
476	>	try {
477	>	task.call();
478	>	} finally {
479	>	Policy.setPolicy(savedPolicy);
480		}
481		}
482
483		/**
484	<	*
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	>	* callable(PrivilegedExceptionAction) returns its result when called
510	>	*/
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 testInvokeCallable () {
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() {
335	<	int N = 10000;
336	<	ExecutorService executor = Executors.newSingleThreadExecutor();
337	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
541	>	public void testCallableNPE3() {
542		try {
543	<	long startTime = System.currentTimeMillis();
544	<
545	<	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	<	}
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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