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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 1.42 by jsr166, Sun May 29 13:45:35 2011 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/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
8	–
9		import junit.framework.*;
10		import java.util.*;
11		import java.util.concurrent.*;
12	<	import java.math.BigInteger;
12	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
13	>	import java.security.*;
14
15	<	public class ExecutorsTest extends JSR166TestCase{
15	<
15	>	public class ExecutorsTest extends JSR166TestCase {
16		public static void main(String[] args) {
17	<	junit.textui.TestRunner.run (suite());
17	>	junit.textui.TestRunner.run(suite());
18		}
19	–
20	–
19		public static Test suite() {
20	<	return new TestSuite(ExecutorsTest.class);
20	>	return new TestSuite(ExecutorsTest.class);
21		}
22
23		/**
24	<	*   execute(Executor, Runnable) will throw
25	<	*  RejectedExecutionException Attempting to execute a runnable on
26	<	*  a full ThreadPool will cause such an exception here, up to 5
27	<	*  runnables are attempted on a pool capable on handling one
28	<	*  until it throws an exception
29	<	*/
30	<	public void testExecute1(){
31	<	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);
24	>	* A newCachedThreadPool can execute runnables
25	>	*/
26	>	public void testNewCachedThreadPool1() {
27	>	ExecutorService e = Executors.newCachedThreadPool();
28	>	e.execute(new NoOpRunnable());
29	>	e.execute(new NoOpRunnable());
30	>	e.execute(new NoOpRunnable());
31	>	joinPool(e);
32		}
33
34		/**
35	<	*   execute(Executor, Callable) will throw
36	<	*  RejectedExecutionException Attempting to execute a callable on
37	<	*  a full ThreadPool will cause such an exception here, up to 5
38	<	*  runnables are attempted on a pool capable on handling one
39	<	*  until it throws an exception
40	<	*/
41	<	public void testExecute2(){
42	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
53	<	try{
54	<	for(int i = 0; i < 5; ++i) {
55	<	Executors.execute(p, new SmallCallable());
56	<	}
57	<	fail("should throw");
58	<	}catch(RejectedExecutionException e){}
59	<	joinPool(p);
35	>	* A newCachedThreadPool with given ThreadFactory can execute runnables
36	>	*/
37	>	public void testNewCachedThreadPool2() {
38	>	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
39	>	e.execute(new NoOpRunnable());
40	>	e.execute(new NoOpRunnable());
41	>	e.execute(new NoOpRunnable());
42	>	joinPool(e);
43		}
44
62	–
45		/**
46	<	*   invoke(Executor, Runnable) throws InterruptedException
47	<	*  A single use of invoke starts that will wait long enough
48	<	*  for the invoking thread to be interrupted
49	<	*/
50	<	public void testInvoke2(){
51	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
52	<	Thread t = new Thread(new Runnable() {
71	<	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);
46	>	* A newCachedThreadPool with null ThreadFactory throws NPE
47	>	*/
48	>	public void testNewCachedThreadPool3() {
49	>	try {
50	>	ExecutorService e = Executors.newCachedThreadPool(null);
51	>	shouldThrow();
52	>	} catch (NullPointerException success) {}
53		}
54
55		/**
56	<	*   invoke(Executor, Runnable) will throw
57	<	*  ExecutionException An ExecutionException occurs when the
58	<	*  underlying Runnable throws an exception, here the
59	<	*  DivideByZeroException will cause an ExecutionException
60	<	*/
61	<	public void testInvoke3(){
62	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
63	<	try{
108	<	Runnable r = new Runnable(){
109	<	public void run(){
110	<	int i = 5/0;
111	<	}
112	<	};
113	<
114	<	for(int i =0; i < 5; i++){
115	<	Executors.invoke(p,r);
116	<	}
117	<
118	<	fail("should throw");
119	<	} catch(ExecutionException success){
120	<	} catch(Exception e){
121	<	fail("should throw EE");
122	<	}
123	<	joinPool(p);
56	>	* A new SingleThreadExecutor can execute runnables
57	>	*/
58	>	public void testNewSingleThreadExecutor1() {
59	>	ExecutorService e = Executors.newSingleThreadExecutor();
60	>	e.execute(new NoOpRunnable());
61	>	e.execute(new NoOpRunnable());
62	>	e.execute(new NoOpRunnable());
63	>	joinPool(e);
64		}
65
66	+	/**
67	+	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
68	+	*/
69	+	public void testNewSingleThreadExecutor2() {
70	+	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
71	+	e.execute(new NoOpRunnable());
72	+	e.execute(new NoOpRunnable());
73	+	e.execute(new NoOpRunnable());
74	+	joinPool(e);
75	+	}
76
77	+	/**
78	+	* A new SingleThreadExecutor with null ThreadFactory throws NPE
79	+	*/
80	+	public void testNewSingleThreadExecutor3() {
81	+	try {
82	+	ExecutorService e = Executors.newSingleThreadExecutor(null);
83	+	shouldThrow();
84	+	} catch (NullPointerException success) {}
85	+	}
86
87		/**
88	<	*   invoke(Executor, Callable) throws
130	<	*  InterruptedException A single use of invoke starts that will
131	<	*  wait long enough for the invoking thread to be interrupted
88	>	* A new SingleThreadExecutor cannot be casted to concrete implementation
89		*/
90	<	public void testInvoke5(){
91	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
92	<
93	<	final Callable c = new Callable(){
94	<	public Object call(){
95	<	try{
96	<	Executors.invoke(p, new SmallCallable());
97	<	fail("should throw");
98	<	}catch(InterruptedException e){}
99	<	catch(RejectedExecutionException e2){}
143	<	catch(ExecutionException e3){}
144	<	return Boolean.TRUE;
145	<	}
146	<	};
90	>	public void testCastNewSingleThreadExecutor() {
91	>	ExecutorService e = Executors.newSingleThreadExecutor();
92	>	try {
93	>	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
94	>	shouldThrow();
95	>	} catch (ClassCastException success) {
96	>	} finally {
97	>	joinPool(e);
98	>	}
99	>	}
100
101	+	/**
102	+	* A new newFixedThreadPool can execute runnables
103	+	*/
104	+	public void testNewFixedThreadPool1() {
105	+	ExecutorService e = Executors.newFixedThreadPool(2);
106	+	e.execute(new NoOpRunnable());
107	+	e.execute(new NoOpRunnable());
108	+	e.execute(new NoOpRunnable());
109	+	joinPool(e);
110	+	}
111
112	<
113	<	Thread t = new Thread(new Runnable(){
114	<	public void run(){
115	<	try{
116	<	c.call();
117	<	}catch(Exception e){}
118	<	}
119	<	});
120	<	try{
158	<	t.start();
159	<	Thread.sleep(SHORT_DELAY_MS);
160	<	t.interrupt();
161	<	t.join();
162	<	}catch(InterruptedException e){
163	<	fail("unexpected exception");
164	<	}
165	<
166	<	joinPool(p);
112	>	/**
113	>	* A new newFixedThreadPool with given ThreadFactory can execute runnables
114	>	*/
115	>	public void testNewFixedThreadPool2() {
116	>	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
117	>	e.execute(new NoOpRunnable());
118	>	e.execute(new NoOpRunnable());
119	>	e.execute(new NoOpRunnable());
120	>	joinPool(e);
121		}
122
123		/**
124	<	*   invoke(Executor, Callable) will throw ExecutionException
125	<	*  An ExecutionException occurs when the underlying Runnable throws
126	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
127	<	*/
128	<	public void testInvoke6(){
129	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
130	<
177	<	try{
178	<	Callable c = new Callable(){
179	<	public Object call(){
180	<	int i = 5/0;
181	<	return Boolean.TRUE;
182	<	}
183	<	};
184	<
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);
124	>	* A new newFixedThreadPool with null ThreadFactory throws NPE
125	>	*/
126	>	public void testNewFixedThreadPool3() {
127	>	try {
128	>	ExecutorService e = Executors.newFixedThreadPool(2, null);
129	>	shouldThrow();
130	>	} catch (NullPointerException success) {}
131		}
132
133	<	public void testExecuteRunnable () {
133	>	/**
134	>	* A new newFixedThreadPool with 0 threads throws IAE
135	>	*/
136	>	public void testNewFixedThreadPool4() {
137		try {
138	<	Executor e = new DirectExecutor();
139	<	Task task = new Task();
138	>	ExecutorService e = Executors.newFixedThreadPool(0);
139	>	shouldThrow();
140	>	} catch (IllegalArgumentException success) {}
141	>	}
142
143	<	assertFalse("task should not be complete", task.isCompleted());
143	>	/**
144	>	* An unconfigurable newFixedThreadPool can execute runnables
145	>	*/
146	>	public void testUnconfigurableExecutorService() {
147	>	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
148	>	e.execute(new NoOpRunnable());
149	>	e.execute(new NoOpRunnable());
150	>	e.execute(new NoOpRunnable());
151	>	joinPool(e);
152	>	}
153	>
154	>	/**
155	>	* unconfigurableExecutorService(null) throws NPE
156	>	*/
157	>	public void testUnconfigurableExecutorServiceNPE() {
158	>	try {
159	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
160	>	shouldThrow();
161	>	} catch (NullPointerException success) {}
162	>	}
163
164	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
165	<	String result = future.get();
164	>	/**
165	>	* unconfigurableScheduledExecutorService(null) throws NPE
166	>	*/
167	>	public void testUnconfigurableScheduledExecutorServiceNPE() {
168	>	try {
169	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
170	>	shouldThrow();
171	>	} catch (NullPointerException success) {}
172	>	}
173
174	<	assertTrue("task should be complete", task.isCompleted());
175	<	assertSame("should return test string", TEST_STRING, result);
176	<	}
177	<	catch (ExecutionException ex) {
178	<	fail("Unexpected exception");
174	>	/**
175	>	* a newSingleThreadScheduledExecutor successfully runs delayed task
176	>	*/
177	>	public void testNewSingleThreadScheduledExecutor() throws Exception {
178	>	ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
179	>	try {
180	>	final CountDownLatch proceed = new CountDownLatch(1);
181	>	final Runnable task = new CheckedRunnable() {
182	>	public void realRun() {
183	>	await(proceed);
184	>	}};
185	>	long startTime = System.nanoTime();
186	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
187	>	timeoutMillis(), MILLISECONDS);
188	>	assertFalse(f.isDone());
189	>	proceed.countDown();
190	>	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
191	>	assertSame(Boolean.TRUE, f.get());
192	>	assertTrue(f.isDone());
193	>	assertFalse(f.isCancelled());
194	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
195	>	} finally {
196	>	joinPool(p);
197		}
198	<	catch (InterruptedException ex) {
199	<	fail("Unexpected exception");
198	>	}
199	>
200	>	/**
201	>	* a newScheduledThreadPool successfully runs delayed task
202	>	*/
203	>	public void testNewScheduledThreadPool() throws Exception {
204	>	ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
205	>	try {
206	>	final CountDownLatch proceed = new CountDownLatch(1);
207	>	final Runnable task = new CheckedRunnable() {
208	>	public void realRun() {
209	>	await(proceed);
210	>	}};
211	>	long startTime = System.nanoTime();
212	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
213	>	timeoutMillis(), MILLISECONDS);
214	>	assertFalse(f.isDone());
215	>	proceed.countDown();
216	>	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
217	>	assertSame(Boolean.TRUE, f.get());
218	>	assertTrue(f.isDone());
219	>	assertFalse(f.isCancelled());
220	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
221	>	} finally {
222	>	joinPool(p);
223		}
224		}
225
226	<	public void testInvokeRunnable () {
226	>	/**
227	>	* an unconfigurable newScheduledThreadPool successfully runs delayed task
228	>	*/
229	>	public void testUnconfigurableScheduledExecutorService() throws Exception {
230	>	ScheduledExecutorService p =
231	>	Executors.unconfigurableScheduledExecutorService
232	>	(Executors.newScheduledThreadPool(2));
233		try {
234	<	Executor e = new DirectExecutor();
235	<	Task task = new Task();
234	>	final CountDownLatch proceed = new CountDownLatch(1);
235	>	final Runnable task = new CheckedRunnable() {
236	>	public void realRun() {
237	>	await(proceed);
238	>	}};
239	>	long startTime = System.nanoTime();
240	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
241	>	timeoutMillis(), MILLISECONDS);
242	>	assertFalse(f.isDone());
243	>	proceed.countDown();
244	>	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
245	>	assertSame(Boolean.TRUE, f.get());
246	>	assertTrue(f.isDone());
247	>	assertFalse(f.isCancelled());
248	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
249	>	} finally {
250	>	joinPool(p);
251	>	}
252	>	}
253
254	<	assertFalse("task should not be complete", task.isCompleted());
254	>	/**
255	>	* Future.get on submitted tasks will time out if they compute too long.
256	>	*/
257	>	public void testTimedCallable() throws Exception {
258	>	final ExecutorService[] executors = {
259	>	Executors.newSingleThreadExecutor(),
260	>	Executors.newCachedThreadPool(),
261	>	Executors.newFixedThreadPool(2),
262	>	Executors.newScheduledThreadPool(2),
263	>	};
264	>
265	>	final Runnable sleeper = new CheckedInterruptedRunnable() {
266	>	public void realRun() throws InterruptedException {
267	>	delay(LONG_DELAY_MS);
268	>	}};
269	>
270	>	List<Thread> threads = new ArrayList<Thread>();
271	>	for (final ExecutorService executor : executors) {
272	>	threads.add(newStartedThread(new CheckedRunnable() {
273	>	public void realRun() {
274	>	long startTime = System.nanoTime();
275	>	Future future = executor.submit(sleeper);
276	>	assertFutureTimesOut(future);
277	>	}}));
278	>	}
279	>	for (Thread thread : threads)
280	>	awaitTermination(thread);
281	>	for (ExecutorService executor : executors)
282	>	joinPool(executor);
283	>	}
284
285	<	Executors.invoke(e, task);
285	>	/**
286	>	* ThreadPoolExecutor using defaultThreadFactory has
287	>	* specified group, priority, daemon status, and name
288	>	*/
289	>	public void testDefaultThreadFactory() throws Exception {
290	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
291	>	final CountDownLatch done = new CountDownLatch(1);
292	>	Runnable r = new CheckedRunnable() {
293	>	public void realRun() {
294	>	try {
295	>	Thread current = Thread.currentThread();
296	>	assertTrue(!current.isDaemon());
297	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
298	>	ThreadGroup g = current.getThreadGroup();
299	>	SecurityManager s = System.getSecurityManager();
300	>	if (s != null)
301	>	assertTrue(g == s.getThreadGroup());
302	>	else
303	>	assertTrue(g == egroup);
304	>	String name = current.getName();
305	>	assertTrue(name.endsWith("thread-1"));
306	>	} catch (SecurityException ok) {
307	>	// Also pass if not allowed to change setting
308	>	}
309	>	done.countDown();
310	>	}};
311	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
312
313	<	assertTrue("task should be complete", task.isCompleted());
314	<	}
228	<	catch (ExecutionException ex) {
229	<	fail("Unexpected exception");
230	<	}
231	<	catch (InterruptedException ex) {
232	<	fail("Unexpected exception");
233	<	}
234	<	}
313	>	e.execute(r);
314	>	await(done);
315
236	–	public void testExecuteCallable () {
316		try {
317	<	Executor e = new DirectExecutor();
318	<	Future<String> future = Executors.execute(e, new StringTask());
319	<	String result = future.get();
317	>	e.shutdown();
318	>	} catch (SecurityException ok) {
319	>	}
320
321	<	assertSame("should return test string", TEST_STRING, result);
321	>	joinPool(e);
322	>	}
323	>
324	>	/**
325	>	* ThreadPoolExecutor using privilegedThreadFactory has
326	>	* specified group, priority, daemon status, name,
327	>	* access control context and context class loader
328	>	*/
329	>	public void testPrivilegedThreadFactory() throws Exception {
330	>	final CountDownLatch done = new CountDownLatch(1);
331	>	Runnable r = new CheckedRunnable() {
332	>	public void realRun() throws Exception {
333	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
334	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
335	>	final AccessControlContext thisacc = AccessController.getContext();
336	>	Runnable r = new CheckedRunnable() {
337	>	public void realRun() {
338	>	Thread current = Thread.currentThread();
339	>	assertTrue(!current.isDaemon());
340	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
341	>	ThreadGroup g = current.getThreadGroup();
342	>	SecurityManager s = System.getSecurityManager();
343	>	if (s != null)
344	>	assertTrue(g == s.getThreadGroup());
345	>	else
346	>	assertTrue(g == egroup);
347	>	String name = current.getName();
348	>	assertTrue(name.endsWith("thread-1"));
349	>	assertSame(thisccl, current.getContextClassLoader());
350	>	assertEquals(thisacc, AccessController.getContext());
351	>	done.countDown();
352	>	}};
353	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
354	>	e.execute(r);
355	>	await(done);
356	>	e.shutdown();
357	>	joinPool(e);
358	>	}};
359	>
360	>	runWithPermissions(r,
361	>	new RuntimePermission("getClassLoader"),
362	>	new RuntimePermission("setContextClassLoader"),
363	>	new RuntimePermission("modifyThread"));
364	>	}
365	>
366	>	boolean haveCCLPermissions() {
367	>	SecurityManager sm = System.getSecurityManager();
368	>	if (sm != null) {
369	>	try {
370	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
371	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
372	>	} catch (AccessControlException e) {
373	>	return false;
374	>	}
375		}
376	<	catch (ExecutionException ex) {
377	<	fail("Unexpected exception");
376	>	return true;
377	>	}
378	>
379	>	void checkCCL() {
380	>	SecurityManager sm = System.getSecurityManager();
381	>	if (sm != null) {
382	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
383	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
384		}
385	<	catch (InterruptedException ex) {
386	<	fail("Unexpected exception");
385	>	}
386	>
387	>	class CheckCCL implements Callable<Object> {
388	>	public Object call() {
389	>	checkCCL();
390	>	return null;
391		}
392		}
393
394	<	public void testInvokeCallable () {
395	<	try {
396	<	Executor e = new DirectExecutor();
397	<	String result = Executors.invoke(e, new StringTask());
394	>	/**
395	>	* Without class loader permissions, creating
396	>	* privilegedCallableUsingCurrentClassLoader throws ACE
397	>	*/
398	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
399	>	Runnable r = new CheckedRunnable() {
400	>	public void realRun() throws Exception {
401	>	if (System.getSecurityManager() == null)
402	>	return;
403	>	try {
404	>	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
405	>	shouldThrow();
406	>	} catch (AccessControlException success) {}
407	>	}};
408
409	<	assertSame("should return test string", TEST_STRING, result);
258	<	}
259	<	catch (ExecutionException ex) {
260	<	fail("Unexpected exception" );
261	<	}
262	<	catch (InterruptedException ex) {
263	<	fail("Unexpected exception");
264	<	}
409	>	runWithoutPermissions(r);
410		}
411
412	<	private static final String TEST_STRING = "a test string";
412	>	/**
413	>	* With class loader permissions, calling
414	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
415	>	*/
416	>	public void testPrivilegedCallableUsingCCLWithPrivs() throws Exception {
417	>	Runnable r = new CheckedRunnable() {
418	>	public void realRun() throws Exception {
419	>	Executors.privilegedCallableUsingCurrentClassLoader
420	>	(new NoOpCallable())
421	>	.call();
422	>	}};
423	>
424	>	runWithPermissions(r,
425	>	new RuntimePermission("getClassLoader"),
426	>	new RuntimePermission("setContextClassLoader"));
427	>	}
428
429	<	private static class Task implements Runnable {
430	<	public void run() { completed = true; }
431	<	public boolean isCompleted() { return completed; }
432	<	public void reset() { completed = false; }
433	<	private boolean completed = false;
429	>	/**
430	>	* Without permissions, calling privilegedCallable throws ACE
431	>	*/
432	>	public void testPrivilegedCallableWithNoPrivs() throws Exception {
433	>	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
434	>	Executors.privilegedCallable(new CheckCCL());
435	>
436	>	Runnable r = new CheckedRunnable() {
437	>	public void realRun() throws Exception {
438	>	if (System.getSecurityManager() == null)
439	>	return;
440	>	Callable task = Executors.privilegedCallable(new CheckCCL());
441	>	try {
442	>	task.call();
443	>	shouldThrow();
444	>	} catch (AccessControlException success) {}
445	>	}};
446	>
447	>	runWithoutPermissions(r);
448	>
449	>	// It seems rather difficult to test that the
450	>	// AccessControlContext of the privilegedCallable is used
451	>	// instead of its caller.  Below is a failed attempt to do
452	>	// that, which does not work because the AccessController
453	>	// cannot capture the internal state of the current Policy.
454	>	// It would be much more work to differentiate based on,
455	>	// e.g. CodeSource.
456	>
457	>	//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
458	>	//         final Callable[] task = new Callable[1];
459	>
460	>	//         runWithPermissions
461	>	//             (new CheckedRunnable() {
462	>	//                 public void realRun() {
463	>	//                     if (System.getSecurityManager() == null)
464	>	//                         return;
465	>	//                     noprivAcc[0] = AccessController.getContext();
466	>	//                     task[0] = Executors.privilegedCallable(new CheckCCL());
467	>	//                     try {
468	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
469	>	//                                                           public Void run() {
470	>	//                                                               checkCCL();
471	>	//                                                               return null;
472	>	//                                                           }}, noprivAcc[0]);
473	>	//                         shouldThrow();
474	>	//                     } catch (AccessControlException success) {}
475	>	//                 }});
476	>
477	>	//         runWithPermissions
478	>	//             (new CheckedRunnable() {
479	>	//                 public void realRun() throws Exception {
480	>	//                     if (System.getSecurityManager() == null)
481	>	//                         return;
482	>	//                     // Verify that we have an underprivileged ACC
483	>	//                     try {
484	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
485	>	//                                                           public Void run() {
486	>	//                                                               checkCCL();
487	>	//                                                               return null;
488	>	//                                                           }}, noprivAcc[0]);
489	>	//                         shouldThrow();
490	>	//                     } catch (AccessControlException success) {}
491	>
492	>	//                     try {
493	>	//                         task[0].call();
494	>	//                         shouldThrow();
495	>	//                     } catch (AccessControlException success) {}
496	>	//                 }},
497	>	//              new RuntimePermission("getClassLoader"),
498	>	//              new RuntimePermission("setContextClassLoader"));
499		}
500
501	<	private static class StringTask implements Callable<String> {
502	<	public String call() { return TEST_STRING; }
501	>	/**
502	>	* With permissions, calling privilegedCallable succeeds
503	>	*/
504	>	public void testPrivilegedCallableWithPrivs() throws Exception {
505	>	Runnable r = new CheckedRunnable() {
506	>	public void realRun() throws Exception {
507	>	Executors.privilegedCallable(new CheckCCL()).call();
508	>	}};
509	>
510	>	runWithPermissions(r,
511	>	new RuntimePermission("getClassLoader"),
512	>	new RuntimePermission("setContextClassLoader"));
513		}
514
515	<	static class DirectExecutor implements Executor {
516	<	public void execute(Runnable r) {
517	<	r.run();
518	<	}
515	>	/**
516	>	* callable(Runnable) returns null when called
517	>	*/
518	>	public void testCallable1() throws Exception {
519	>	Callable c = Executors.callable(new NoOpRunnable());
520	>	assertNull(c.call());
521		}
522
523		/**
524	<	* Check that timeouts from execute will time out if they compute
288	<	* too long.
524	>	* callable(Runnable, result) returns result when called
525		*/
526	+	public void testCallable2() throws Exception {
527	+	Callable c = Executors.callable(new NoOpRunnable(), one);
528	+	assertSame(one, c.call());
529	+	}
530
531	<	public void testTimedCallable() {
532	<	int N = 10000;
533	<	ExecutorService executor = Executors.newSingleThreadExecutor();
534	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
535	<	try {
536	<	long startTime = System.currentTimeMillis();
537	<
298	<	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	<	}
531	>	/**
532	>	* callable(PrivilegedAction) returns its result when called
533	>	*/
534	>	public void testCallable3() throws Exception {
535	>	Callable c = Executors.callable(new PrivilegedAction() {
536	>	public Object run() { return one; }});
537	>	assertSame(one, c.call());
538		}
539
540	<
541	<	static class TimedCallable<T> implements Callable<T> {
542	<	private final Executor exec;
543	<	private final Callable<T> func;
544	<	private final long msecs;
545	<
546	<	TimedCallable(Executor exec, Callable<T> func, long msecs) {
335	<	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	<	}
540	>	/**
541	>	* callable(PrivilegedExceptionAction) returns its result when called
542	>	*/
543	>	public void testCallable4() throws Exception {
544	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
545	>	public Object run() { return one; }});
546	>	assertSame(one, c.call());
547		}
548
549	+	/**
550	+	* callable(null Runnable) throws NPE
551	+	*/
552	+	public void testCallableNPE1() {
553	+	try {
554	+	Callable c = Executors.callable((Runnable) null);
555	+	shouldThrow();
556	+	} catch (NullPointerException success) {}
557	+	}
558
559	<	private static class Fib implements Callable<BigInteger> {
560	<	private final BigInteger n;
561	<	Fib(long n) {
562	<	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
563	<	this.n = BigInteger.valueOf(n);
564	<	}
565	<	public BigInteger call() {
566	<	BigInteger f1 = BigInteger.ONE;
567	<	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	<	};
559	>	/**
560	>	* callable(null, result) throws NPE
561	>	*/
562	>	public void testCallableNPE2() {
563	>	try {
564	>	Callable c = Executors.callable((Runnable) null, one);
565	>	shouldThrow();
566	>	} catch (NullPointerException success) {}
567	>	}
568
569	+	/**
570	+	* callable(null PrivilegedAction) throws NPE
571	+	*/
572	+	public void testCallableNPE3() {
573	+	try {
574	+	Callable c = Executors.callable((PrivilegedAction) null);
575	+	shouldThrow();
576	+	} catch (NullPointerException success) {}
577	+	}
578
579	+	/**
580	+	* callable(null PrivilegedExceptionAction) throws NPE
581	+	*/
582	+	public void testCallableNPE4() {
583	+	try {
584	+	Callable c = Executors.callable((PrivilegedExceptionAction) null);
585	+	shouldThrow();
586	+	} catch (NullPointerException success) {}
587	+	}
588
589		}

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