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

Comparing jsr166/src/test/tck/ExecutorsTest.java (file contents):
Revision 1.3 by dl, Sun Sep 14 20:42:40 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		}
19	–
20	–
21		public static Test suite() {
22	<	return new TestSuite(ExecutorsTest.class);
22	>	return new TestSuite(ExecutorsTest.class);
23		}
24
25		/**
26	<	*   execute(Executor, Runnable) will throw
27	<	*  RejectedExecutionException Attempting to execute a runnable on
28	<	*  a full ThreadPool will cause such an exception here, up to 5
29	<	*  runnables are attempted on a pool capable on handling one
30	<	*  until it throws an exception
31	<	*/
32	<	public void testExecute1(){
33	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
34	<	try{
35	<
36	<	for(int i = 0; i < 5; ++i){
37	<	Executors.execute(p, new MediumRunnable(), Boolean.TRUE);
38	<	}
39	<	fail("should throw");
40	<	} catch(RejectedExecutionException success){}
41	<	joinPool(p);
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		/**
37	<	*   execute(Executor, Callable) will throw
38	<	*  RejectedExecutionException Attempting to execute a callable on
39	<	*  a full ThreadPool will cause such an exception here, up to 5
40	<	*  runnables are attempted on a pool capable on handling one
41	<	*  until it throws an exception
42	<	*/
43	<	public void testExecute2(){
44	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
45	<	try{
46	<	for(int i = 0; i < 5; ++i) {
47	<	Executors.execute(p, new SmallCallable());
48	<	}
49	<	fail("should throw");
50	<	}catch(RejectedExecutionException e){}
51	<	joinPool(p);
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	>	/**
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		/**
59	<	*   invoke(Executor, Runnable) throws InterruptedException
60	<	*  A single use of invoke starts that will wait long enough
61	<	*  for the invoking thread to be interrupted
62	<	*/
63	<	public void testInvoke2(){
64	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
65	<	Thread t = new Thread(new Runnable() {
66	<	public void run(){
72	<	try{
73	<	Executors.invoke(p,new Runnable(){
74	<	public void run(){
75	<	try{
76	<	Thread.sleep(MEDIUM_DELAY_MS);
77	<	fail("should throw");
78	<	}catch(InterruptedException e){
79	<	}
80	<	}
81	<	});
82	<	} catch(InterruptedException success){
83	<	} catch(Exception e) {
84	<	fail("unexpected exception");
85	<	}
86	<
87	<	}
88	<	});
89	<	try{
90	<	t.start();
91	<	Thread.sleep(SHORT_DELAY_MS);
92	<	t.interrupt();
93	<	}catch(Exception e){
94	<	fail("unexpected exception");
95	<	}
96	<	joinPool(p);
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	<	*   invoke(Executor, Runnable) will throw
101	<	*  ExecutionException An ExecutionException occurs when the
102	<	*  underlying Runnable throws an exception, here the
103	<	*  DivideByZeroException will cause an ExecutionException
70	>	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
71		*/
72	<	public void testInvoke3(){
73	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
74	<	try{
75	<	Runnable r = new Runnable(){
76	<	public void run(){
77	<	int i = 5/0;
78	<	}
79	<	};
80	<
81	<	for(int i =0; i < 5; i++){
82	<	Executors.invoke(p,r);
83	<	}
84	<
85	<	fail("should throw");
86	<	} catch(ExecutionException success){
87	<	} catch(Exception e){
121	<	fail("should throw EE");
122	<	}
123	<	joinPool(p);
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	+	/**
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	+	}
103
104
105		/**
106	<	*   invoke(Executor, Callable) throws
107	<	*  InterruptedException A single use of invoke starts that will
108	<	*  wait long enough for the invoking thread to be interrupted
109	<	*/
110	<	public void testInvoke5(){
111	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
112	<
113	<	final Callable c = new Callable(){
114	<	public Object call(){
138	<	try{
139	<	Executors.invoke(p, new SmallCallable());
140	<	fail("should throw");
141	<	}catch(InterruptedException e){}
142	<	catch(RejectedExecutionException e2){}
143	<	catch(ExecutionException e3){}
144	<	return Boolean.TRUE;
145	<	}
146	<	};
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	<	Thread t = new Thread(new Runnable(){
129	<	public void run(){
130	<	try{
131	<	c.call();
132	<	}catch(Exception e){}
133	<	}
134	<	});
135	<	try{
136	<	t.start();
137	<	Thread.sleep(SHORT_DELAY_MS);
138	<	t.interrupt();
139	<	t.join();
140	<	}catch(InterruptedException e){
141	<	fail("unexpected exception");
142	<	}
143	<
144	<	joinPool(p);
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 (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) will throw ExecutionException
171	<	*  An ExecutionException occurs when the underlying Runnable throws
172	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
149	>	* An unconfigurable newFixedThreadPool can execute runnables
150		*/
151	<	public void testInvoke6(){
152	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
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	<	try{
160	<	Callable c = new Callable(){
161	<	public Object call(){
162	<	int i = 5/0;
163	<	return Boolean.TRUE;
164	<	}
165	<	};
166	<
185	<	for(int i =0; i < 5; i++){
186	<	Executors.invoke(p,c);
187	<	}
188	<
189	<	fail("should throw");
190	<	}catch(RejectedExecutionException e){}
191	<	catch(InterruptedException e2){}
192	<	catch(ExecutionException e3){}
193	<	joinPool(p);
159	>	/**
160	>	* unconfigurableExecutorService(null) throws NPE
161	>	*/
162	>	public void testunconfigurableExecutorServiceNPE() {
163	>	try {
164	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
165	>	shouldThrow();
166	>	} catch (NullPointerException success) {}
167		}
168
169	<	public void testExecuteRunnable () {
169	>	/**
170	>	* unconfigurableScheduledExecutorService(null) throws NPE
171	>	*/
172	>	public void testunconfigurableScheduledExecutorServiceNPE() {
173		try {
174	<	Executor e = new DirectExecutor();
175	<	Task task = new Task();
174	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
175	>	shouldThrow();
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	<	assertFalse("task should not be complete", task.isCompleted());
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	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
209	<	String result = future.get();
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	<	assertTrue("task should be complete", task.isCompleted());
223	<	assertSame("should return test string", TEST_STRING, result);
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	<	catch (ExecutionException ex) {
253	<	fail("Unexpected exception");
252	>	}
253	>
254	>
255	>	/**
256	>	* ThreadPoolExecutor using defaultThreadFactory has
257	>	* specified group, priority, daemon status, and name
258	>	*/
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	>	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	<	catch (InterruptedException ex) {
288	<	fail("Unexpected exception");
287	>
288	>	try {
289	>	Thread.sleep(SHORT_DELAY_MS);
290	>	} finally {
291	>	joinPool(e);
292		}
293		}
294
295	<	public void testInvokeRunnable () {
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	<	Executor e = new DirectExecutor();
304	<	Task task = new Task();
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	>	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	>	};
335	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
336
337	<	assertFalse("task should not be complete", task.isCompleted());
337	>	Policy.setPolicy(savedPolicy);
338	>	e.execute(r);
339	>	try {
340	>	e.shutdown();
341	>	} catch (SecurityException ok) {
342	>	}
343	>	try {
344	>	Thread.sleep(SHORT_DELAY_MS);
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	>	}
356	>	}
357	>
358	>	class CheckCCL implements Callable<Object> {
359	>	public Object call() {
360	>	checkCCL();
361	>	return null;
362	>	}
363	>	}
364
224	–	Executors.invoke(e, task);
365
366	<	assertTrue("task should be complete", task.isCompleted());
366	>	/**
367	>	* Without class loader permissions, creating
368	>	* privilegedCallableUsingCurrentClassLoader throws ACE
369	>	*/
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	<	catch (ExecutionException ex) {
380	<	fail("Unexpected exception");
379	>
380	>	// Check if program still has too many permissions to run test
381	>	try {
382	>	checkCCL();
383	>	// too many privileges to test; so return
384	>	Policy.setPolicy(savedPolicy);
385	>	return;
386	>	} catch (AccessControlException ok) {
387		}
388	<	catch (InterruptedException ex) {
389	<	fail("Unexpected exception");
388	>
389	>	try {
390	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
391	>	shouldThrow();
392	>	} catch (AccessControlException success) {
393	>	} finally {
394	>	Policy.setPolicy(savedPolicy);
395		}
396		}
397
398	<	public void testExecuteCallable () {
398	>	/**
399	>	* With class loader permissions, calling
400	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
401	>	*/
402	>	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
403	>	Policy savedPolicy = null;
404		try {
405	<	Executor e = new DirectExecutor();
406	<	Future<String> future = Executors.execute(e, new StringTask());
407	<	String result = future.get();
408	<
409	<	assertSame("should return test string", 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	<	fail("Unexpected exception");
413	>
414	>	try {
415	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
416	>	task.call();
417		}
418	<	catch (InterruptedException ex) {
419	<	fail("Unexpected exception");
418	>	finally {
419	>	Policy.setPolicy(savedPolicy);
420		}
421		}
422
423	<	public void testInvokeCallable () {
423	>	/**
424	>	* Without permissions, calling privilegedCallable throws ACE
425	>	*/
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	<	String result = Executors.invoke(e, new StringTask());
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
442	<	assertSame("should return test string", TEST_STRING, result);
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	<	catch (ExecutionException ex) {
454	<	fail("Unexpected exception" );
453	>
454	>	try {
455	>	task.call();
456	>	shouldThrow();
457	>	} catch (AccessControlException success) {}
458	>	}
459	>
460	>	/**
461	>	* With permissions, calling privilegedCallable succeeds
462	>	*/
463	>	public void testprivilegedCallableWithPrivs() throws Exception {
464	>	Policy savedPolicy = null;
465	>	try {
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	<	fail("Unexpected exception");
474	>
475	>	Callable task = Executors.privilegedCallable(new CheckCCL());
476	>	try {
477	>	task.call();
478	>	} finally {
479	>	Policy.setPolicy(savedPolicy);
480		}
481		}
482
483	<	private static final String TEST_STRING = "a test string";
484	<
485	<	private static class Task implements Runnable {
486	<	public void run() { completed = true; }
487	<	public boolean isCompleted() { return completed; }
488	<	public void reset() { completed = false; }
273	<	private boolean completed = false;
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	<	private static class StringTask implements Callable<String> {
492	<	public String call() { return TEST_STRING; }
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	<	static class DirectExecutor implements Executor {
500	<	public void execute(Runnable r) {
501	<	r.run();
502	<	}
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	<	* Check that timeouts from execute will time out if they compute
288	<	* too long.
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	<	public void testTimedCallable() {
519	<	int N = 10000;
520	<	ExecutorService executor = Executors.newSingleThreadExecutor();
521	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
518	>	/**
519	>	* callable(null Runnable) throws NPE
520	>	*/
521	>	public void testCallableNPE1() {
522		try {
523	<	long startTime = System.currentTimeMillis();
524	<
525	<	long i = 0;
299	<	while (tasks.size() < N) {
300	<	tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
301	<	i += 10;
302	<	}
303	<
304	<	int iters = 0;
305	<	BigInteger sum = BigInteger.ZERO;
306	<	for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
307	<	try {
308	<	++iters;
309	<	sum = sum.add(it.next().call());
310	<	}
311	<	catch (TimeoutException success) {
312	<	assertTrue(iters > 0);
313	<	return;
314	<	}
315	<	catch (Exception e) {
316	<	fail("unexpected exception: " + e);
317	<	}
318	<	}
319	<	// if by chance we didn't ever time out, total time must be small
320	<	long elapsed = System.currentTimeMillis() - startTime;
321	<	assertTrue(elapsed < N);
322	<	}
323	<	finally {
324	<	joinPool(executor);
325	<	}
523	>	Callable c = Executors.callable((Runnable) null);
524	>	shouldThrow();
525	>	} catch (NullPointerException success) {}
526		}
527
528	<
529	<	static class TimedCallable<T> implements Callable<T> {
530	<	private final Executor exec;
531	<	private final Callable<T> func;
532	<	private final long msecs;
533	<
534	<	TimedCallable(Executor exec, Callable<T> func, long msecs) {
535	<	this.exec = exec;
336	<	this.func = func;
337	<	this.msecs = msecs;
338	<	}
339	<
340	<	public T call() throws Exception {
341	<	Future<T> ftask = Executors.execute(exec, func);
342	<	try {
343	<	return ftask.get(msecs, TimeUnit.MILLISECONDS);
344	<	} finally {
345	<	ftask.cancel(true);
346	<	}
347	<	}
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	+	* callable(null PrivilegedAction) throws NPE
540	+	*/
541	+	public void testCallableNPE3() {
542	+	try {
543	+	Callable c = Executors.callable((PrivilegedAction) null);
544	+	shouldThrow();
545	+	} catch (NullPointerException success) {}
546	+	}
547
548	<	private static class Fib implements Callable<BigInteger> {
549	<	private final BigInteger n;
550	<	Fib(long n) {
551	<	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
552	<	this.n = BigInteger.valueOf(n);
553	<	}
554	<	public BigInteger call() {
555	<	BigInteger f1 = BigInteger.ONE;
556	<	BigInteger f2 = f1;
360	<	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
361	<	BigInteger t = f1.add(f2);
362	<	f1 = f2;
363	<	f2 = t;
364	<	}
365	<	return f1;
366	<	}
367	<	};
368	<
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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