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

Comparing jsr166/src/test/tck/ExecutorsTest.java (file contents):
Revision 1.2 by dl, Sun Sep 7 20:39:11 2003 UTC vs.
Revision 1.40 by jsr166, Fri May 27 19:28:38 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 static java.util.concurrent.TimeUnit.MILLISECONDS;
13		import java.math.BigInteger;
14	+	import java.security.*;
15
16	<	public class ExecutorsTest extends TestCase{
15	<
16	>	public class ExecutorsTest extends JSR166TestCase {
17		public static void main(String[] args) {
18	<	junit.textui.TestRunner.run (suite());
18	>	junit.textui.TestRunner.run(suite());
19		}
19	–
20	–
20		public static Test suite() {
21	<	return new TestSuite(ExecutorsTest.class);
21	>	return new TestSuite(ExecutorsTest.class);
22		}
23
24	<	private static long SHORT_DELAY_MS = 100;
25	<	private static long MEDIUM_DELAY_MS = 1000;
26	<	private static long LONG_DELAY_MS = 10000;
27	<
28	<	class SleepRun implements Runnable {
29	<	public void run() {
30	<	try{
31	<	Thread.sleep(MEDIUM_DELAY_MS);
32	<	} catch(InterruptedException e){
34	<	fail("unexpected exception");
35	<	}
36	<	}
24	>	/**
25	>	* A newCachedThreadPool can execute runnables
26	>	*/
27	>	public void testNewCachedThreadPool1() {
28	>	ExecutorService e = Executors.newCachedThreadPool();
29	>	e.execute(new NoOpRunnable());
30	>	e.execute(new NoOpRunnable());
31	>	e.execute(new NoOpRunnable());
32	>	joinPool(e);
33		}
38	–
34
35	<	class SleepCall implements Callable {
36	<	public Object call(){
37	<	try{
38	<	Thread.sleep(MEDIUM_DELAY_MS);
39	<	}catch(InterruptedException e){
40	<	fail("unexpected exception");
41	<	}
42	<	return Boolean.TRUE;
43	<	}
35	>	/**
36	>	* A newCachedThreadPool with given ThreadFactory can execute runnables
37	>	*/
38	>	public void testNewCachedThreadPool2() {
39	>	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
40	>	e.execute(new NoOpRunnable());
41	>	e.execute(new NoOpRunnable());
42	>	e.execute(new NoOpRunnable());
43	>	joinPool(e);
44		}
45
51	–
52	–
46		/**
47	<	*  Test to verify execute(Executor, Runnable) will throw
48	<	*  RejectedExecutionException Attempting to execute a runnable on
49	<	*  a full ThreadPool will cause such an exception here, up to 5
50	<	*  runnables are attempted on a pool capable on handling one
51	<	*  until it throws an exception
52	<	*/
53	<	public void testExecute1(){
61	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
62	<	try{
63	<
64	<	for(int i = 0; i < 5; ++i){
65	<	Executors.execute(p, new SleepRun(), Boolean.TRUE);
66	<	}
67	<	fail("should throw");
68	<	} catch(RejectedExecutionException success){}
69	<	p.shutdownNow();
47	>	* A newCachedThreadPool with null ThreadFactory throws NPE
48	>	*/
49	>	public void testNewCachedThreadPool3() {
50	>	try {
51	>	ExecutorService e = Executors.newCachedThreadPool(null);
52	>	shouldThrow();
53	>	} catch (NullPointerException success) {}
54		}
55
56		/**
57	<	*  Test to verify execute(Executor, Callable) will throw
58	<	*  RejectedExecutionException Attempting to execute a callable on
59	<	*  a full ThreadPool will cause such an exception here, up to 5
60	<	*  runnables are attempted on a pool capable on handling one
61	<	*  until it throws an exception
62	<	*/
63	<	public void testExecute2(){
64	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
81	<	try{
82	<	for(int i = 0; i < 5; ++i) {
83	<	Executors.execute(p, new SleepCall());
84	<	}
85	<	fail("should throw");
86	<	}catch(RejectedExecutionException e){}
87	<	p.shutdownNow();
57	>	* A new SingleThreadExecutor can execute runnables
58	>	*/
59	>	public void testNewSingleThreadExecutor1() {
60	>	ExecutorService e = Executors.newSingleThreadExecutor();
61	>	e.execute(new NoOpRunnable());
62	>	e.execute(new NoOpRunnable());
63	>	e.execute(new NoOpRunnable());
64	>	joinPool(e);
65		}
66
67	+	/**
68	+	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
69	+	*/
70	+	public void testNewSingleThreadExecutor2() {
71	+	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
72	+	e.execute(new NoOpRunnable());
73	+	e.execute(new NoOpRunnable());
74	+	e.execute(new NoOpRunnable());
75	+	joinPool(e);
76	+	}
77
78		/**
79	<	*  Test to verify invoke(Executor, Runnable) throws InterruptedException
80	<	*  A single use of invoke starts that will wait long enough
81	<	*  for the invoking thread to be interrupted
82	<	*/
83	<	public void testInvoke2(){
84	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
85	<	Thread t = new Thread(new Runnable() {
99	<	public void run(){
100	<	try{
101	<	Executors.invoke(p,new Runnable(){
102	<	public void run(){
103	<	try{
104	<	Thread.sleep(MEDIUM_DELAY_MS);
105	<	fail("should throw");
106	<	}catch(InterruptedException e){
107	<	}
108	<	}
109	<	});
110	<	} catch(InterruptedException success){
111	<	} catch(Exception e) {
112	<	fail("unexpected exception");
113	<	}
114	<
115	<	}
116	<	});
117	<	try{
118	<	t.start();
119	<	Thread.sleep(SHORT_DELAY_MS);
120	<	t.interrupt();
121	<	}catch(Exception e){
122	<	fail("unexpected exception");
123	<	}
124	<	p.shutdownNow();
79	>	* A new SingleThreadExecutor with null ThreadFactory throws NPE
80	>	*/
81	>	public void testNewSingleThreadExecutor3() {
82	>	try {
83	>	ExecutorService e = Executors.newSingleThreadExecutor(null);
84	>	shouldThrow();
85	>	} catch (NullPointerException success) {}
86		}
87
88		/**
89	<	*  Test to verify invoke(Executor, Runnable) will throw
90	<	*  ExecutionException An ExecutionException occurs when the
91	<	*  underlying Runnable throws an exception, here the
92	<	*  DivideByZeroException will cause an ExecutionException
93	<	*/
94	<	public void testInvoke3(){
95	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
96	<	try{
97	<	Runnable r = new Runnable(){
98	<	public void run(){
138	<	int i = 5/0;
139	<	}
140	<	};
141	<
142	<	for(int i =0; i < 5; i++){
143	<	Executors.invoke(p,r);
144	<	}
145	<
146	<	fail("should throw");
147	<	} catch(ExecutionException success){
148	<	} catch(Exception e){
149	<	fail("should throw EE");
89	>	* A new SingleThreadExecutor cannot be casted to concrete implementation
90	>	*/
91	>	public void testCastNewSingleThreadExecutor() {
92	>	ExecutorService e = Executors.newSingleThreadExecutor();
93	>	try {
94	>	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
95	>	shouldThrow();
96	>	} catch (ClassCastException success) {
97	>	} finally {
98	>	joinPool(e);
99		}
151	–	p.shutdownNow();
100		}
101
102	<
102	>	/**
103	>	* A new newFixedThreadPool can execute runnables
104	>	*/
105	>	public void testNewFixedThreadPool1() {
106	>	ExecutorService e = Executors.newFixedThreadPool(2);
107	>	e.execute(new NoOpRunnable());
108	>	e.execute(new NoOpRunnable());
109	>	e.execute(new NoOpRunnable());
110	>	joinPool(e);
111	>	}
112
113		/**
114	<	*  Test to verify invoke(Executor, Callable) throws
158	<	*  InterruptedException A single use of invoke starts that will
159	<	*  wait long enough for the invoking thread to be interrupted
114	>	* A new newFixedThreadPool with given ThreadFactory can execute runnables
115		*/
116	<	public void testInvoke5(){
117	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
118	<
119	<	final Callable c = new Callable(){
120	<	public Object call(){
121	<	try{
122	<	Executors.invoke(p, new SleepCall());
168	<	fail("should throw");
169	<	}catch(InterruptedException e){}
170	<	catch(RejectedExecutionException e2){}
171	<	catch(ExecutionException e3){}
172	<	return Boolean.TRUE;
173	<	}
174	<	};
116	>	public void testNewFixedThreadPool2() {
117	>	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
118	>	e.execute(new NoOpRunnable());
119	>	e.execute(new NoOpRunnable());
120	>	e.execute(new NoOpRunnable());
121	>	joinPool(e);
122	>	}
123
124	+	/**
125	+	* A new newFixedThreadPool with null ThreadFactory throws NPE
126	+	*/
127	+	public void testNewFixedThreadPool3() {
128	+	try {
129	+	ExecutorService e = Executors.newFixedThreadPool(2, null);
130	+	shouldThrow();
131	+	} catch (NullPointerException success) {}
132	+	}
133
134	<
135	<	Thread t = new Thread(new Runnable(){
136	<	public void run(){
137	<	try{
138	<	c.call();
139	<	}catch(Exception e){}
140	<	}
141	<	});
185	<	try{
186	<	t.start();
187	<	Thread.sleep(SHORT_DELAY_MS);
188	<	t.interrupt();
189	<	t.join();
190	<	}catch(InterruptedException e){
191	<	fail("unexpected exception");
192	<	}
193	<
194	<	p.shutdownNow();
134	>	/**
135	>	* A new newFixedThreadPool with 0 threads throws IAE
136	>	*/
137	>	public void testNewFixedThreadPool4() {
138	>	try {
139	>	ExecutorService e = Executors.newFixedThreadPool(0);
140	>	shouldThrow();
141	>	} catch (IllegalArgumentException success) {}
142		}
143
144		/**
145	<	*  Test to verify invoke(Executor, Callable) will throw ExecutionException
146	<	*  An ExecutionException occurs when the underlying Runnable throws
147	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
148	<	*/
149	<	public void testInvoke6(){
150	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
151	<
152	<	try{
206	<	Callable c = new Callable(){
207	<	public Object call(){
208	<	int i = 5/0;
209	<	return Boolean.TRUE;
210	<	}
211	<	};
212	<
213	<	for(int i =0; i < 5; i++){
214	<	Executors.invoke(p,c);
215	<	}
216	<
217	<	fail("should throw");
218	<	}catch(RejectedExecutionException e){}
219	<	catch(InterruptedException e2){}
220	<	catch(ExecutionException e3){}
221	<	p.shutdownNow();
145	>	* An unconfigurable newFixedThreadPool can execute runnables
146	>	*/
147	>	public void testunconfigurableExecutorService() {
148	>	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
149	>	e.execute(new NoOpRunnable());
150	>	e.execute(new NoOpRunnable());
151	>	e.execute(new NoOpRunnable());
152	>	joinPool(e);
153		}
154
155	<	public void testExecuteRunnable () {
155	>	/**
156	>	* unconfigurableExecutorService(null) throws NPE
157	>	*/
158	>	public void testunconfigurableExecutorServiceNPE() {
159		try {
160	<	Executor e = new DirectExecutor();
161	<	Task task = new Task();
162	<
163	<	assertFalse("task should not be complete", task.isCompleted());
160	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
161	>	shouldThrow();
162	>	} catch (NullPointerException success) {}
163	>	}
164
165	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
166	<	String result = future.get();
165	>	/**
166	>	* unconfigurableScheduledExecutorService(null) throws NPE
167	>	*/
168	>	public void testunconfigurableScheduledExecutorServiceNPE() {
169	>	try {
170	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
171	>	shouldThrow();
172	>	} catch (NullPointerException success) {}
173	>	}
174
175	<	assertTrue("task should be complete", task.isCompleted());
176	<	assertSame("should return test string", TEST_STRING, result);
177	<	}
178	<	catch (ExecutionException ex) {
179	<	fail("Unexpected exception");
175	>	/**
176	>	* a newSingleThreadScheduledExecutor successfully runs delayed task
177	>	*/
178	>	public void testNewSingleThreadScheduledExecutor() throws Exception {
179	>	ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
180	>	try {
181	>	final CountDownLatch done = new CountDownLatch(1);
182	>	final Runnable task = new CheckedRunnable() {
183	>	public void realRun() {
184	>	done.countDown();
185	>	}};
186	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
187	>	SHORT_DELAY_MS, MILLISECONDS);
188	>	assertFalse(f.isDone());
189	>	assertTrue(done.await(MEDIUM_DELAY_MS, MILLISECONDS));
190	>	assertSame(Boolean.TRUE, f.get(SMALL_DELAY_MS, MILLISECONDS));
191	>	assertSame(Boolean.TRUE, f.get());
192	>	assertTrue(f.isDone());
193	>	} finally {
194	>	joinPool(p);
195		}
196	<	catch (InterruptedException ex) {
197	<	fail("Unexpected exception");
196	>	}
197	>
198	>	/**
199	>	* a newScheduledThreadPool successfully runs delayed task
200	>	*/
201	>	public void testnewScheduledThreadPool() throws Exception {
202	>	ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
203	>	try {
204	>	final CountDownLatch done = new CountDownLatch(1);
205	>	final Runnable task = new CheckedRunnable() {
206	>	public void realRun() {
207	>	done.countDown();
208	>	}};
209	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
210	>	SHORT_DELAY_MS, MILLISECONDS);
211	>	assertFalse(f.isDone());
212	>	assertTrue(done.await(MEDIUM_DELAY_MS, MILLISECONDS));
213	>	assertSame(Boolean.TRUE, f.get(SMALL_DELAY_MS, MILLISECONDS));
214	>	assertSame(Boolean.TRUE, f.get());
215	>	assertTrue(f.isDone());
216	>	} finally {
217	>	joinPool(p);
218		}
219		}
220
221	<	public void testInvokeRunnable () {
221	>	/**
222	>	* an unconfigurable newScheduledThreadPool successfully runs delayed task
223	>	*/
224	>	public void testunconfigurableScheduledExecutorService() throws Exception {
225	>	ScheduledExecutorService p =
226	>	Executors.unconfigurableScheduledExecutorService
227	>	(Executors.newScheduledThreadPool(2));
228		try {
229	<	Executor e = new DirectExecutor();
230	<	Task task = new Task();
229	>	final CountDownLatch done = new CountDownLatch(1);
230	>	final Runnable task = new CheckedRunnable() {
231	>	public void realRun() {
232	>	done.countDown();
233	>	}};
234	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
235	>	SHORT_DELAY_MS, MILLISECONDS);
236	>	assertFalse(f.isDone());
237	>	assertTrue(done.await(MEDIUM_DELAY_MS, MILLISECONDS));
238	>	assertSame(Boolean.TRUE, f.get(SMALL_DELAY_MS, MILLISECONDS));
239	>	assertSame(Boolean.TRUE, f.get());
240	>	assertTrue(f.isDone());
241	>	} finally {
242	>	joinPool(p);
243	>	}
244	>	}
245
246	<	assertFalse("task should not be complete", task.isCompleted());
246	>	/**
247	>	* Future.get on submitted tasks will time out if they compute too long.
248	>	*/
249	>	public void testTimedCallable() throws Exception {
250	>	final ExecutorService[] executors = {
251	>	Executors.newSingleThreadExecutor(),
252	>	Executors.newCachedThreadPool(),
253	>	Executors.newFixedThreadPool(2),
254	>	Executors.newScheduledThreadPool(2),
255	>	};
256	>
257	>	final Runnable sleeper = new CheckedInterruptedRunnable() {
258	>	public void realRun() throws InterruptedException {
259	>	delay(LONG_DELAY_MS);
260	>	}};
261	>
262	>	List<Thread> threads = new ArrayList<Thread>();
263	>	for (final ExecutorService executor : executors) {
264	>	threads.add(newStartedThread(new CheckedRunnable() {
265	>	public void realRun() {
266	>	long startTime = System.nanoTime();
267	>	Future future = executor.submit(sleeper);
268	>	assertFutureTimesOut(future);
269	>	}}));
270	>	}
271	>	for (Thread thread : threads)
272	>	awaitTermination(thread);
273	>	for (ExecutorService executor : executors)
274	>	joinPool(executor);
275	>	}
276
277	<	Executors.invoke(e, task);
277	>	/**
278	>	* ThreadPoolExecutor using defaultThreadFactory has
279	>	* specified group, priority, daemon status, and name
280	>	*/
281	>	public void testDefaultThreadFactory() throws Exception {
282	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
283	>	Runnable r = new CheckedRunnable() {
284	>	public void realRun() {
285	>	try {
286	>	Thread current = Thread.currentThread();
287	>	assertTrue(!current.isDaemon());
288	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
289	>	ThreadGroup g = current.getThreadGroup();
290	>	SecurityManager s = System.getSecurityManager();
291	>	if (s != null)
292	>	assertTrue(g == s.getThreadGroup());
293	>	else
294	>	assertTrue(g == egroup);
295	>	String name = current.getName();
296	>	assertTrue(name.endsWith("thread-1"));
297	>	} catch (SecurityException ok) {
298	>	// Also pass if not allowed to change setting
299	>	}
300	>	}};
301	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
302
303	<	assertTrue("task should be complete", task.isCompleted());
304	<	}
305	<	catch (ExecutionException ex) {
306	<	fail("Unexpected exception");
258	<	}
259	<	catch (InterruptedException ex) {
260	<	fail("Unexpected exception");
303	>	e.execute(r);
304	>	try {
305	>	e.shutdown();
306	>	} catch (SecurityException ok) {
307		}
262	–	}
308
264	–	public void testExecuteCallable () {
309		try {
310	<	Executor e = new DirectExecutor();
311	<	Future<String> future = Executors.execute(e, new StringTask());
312	<	String result = future.get();
310	>	delay(SHORT_DELAY_MS);
311	>	} finally {
312	>	joinPool(e);
313	>	}
314	>	}
315
316	<	assertSame("should return test string", TEST_STRING, result);
316	>	/**
317	>	* ThreadPoolExecutor using privilegedThreadFactory has
318	>	* specified group, priority, daemon status, name,
319	>	* access control context and context class loader
320	>	*/
321	>	public void testPrivilegedThreadFactory() throws Exception {
322	>	Runnable r = new CheckedRunnable() {
323	>	public void realRun() throws Exception {
324	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
325	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
326	>	final AccessControlContext thisacc = AccessController.getContext();
327	>	Runnable r = new CheckedRunnable() {
328	>	public void realRun() {
329	>	Thread current = Thread.currentThread();
330	>	assertTrue(!current.isDaemon());
331	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
332	>	ThreadGroup g = current.getThreadGroup();
333	>	SecurityManager s = System.getSecurityManager();
334	>	if (s != null)
335	>	assertTrue(g == s.getThreadGroup());
336	>	else
337	>	assertTrue(g == egroup);
338	>	String name = current.getName();
339	>	assertTrue(name.endsWith("thread-1"));
340	>	assertSame(thisccl, current.getContextClassLoader());
341	>	assertEquals(thisacc, AccessController.getContext());
342	>	}};
343	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
344	>	e.execute(r);
345	>	e.shutdown();
346	>	delay(SHORT_DELAY_MS);
347	>	joinPool(e);
348	>	}};
349	>
350	>	runWithPermissions(r,
351	>	new RuntimePermission("getClassLoader"),
352	>	new RuntimePermission("setContextClassLoader"),
353	>	new RuntimePermission("modifyThread"));
354	>	}
355	>
356	>	boolean haveCCLPermissions() {
357	>	SecurityManager sm = System.getSecurityManager();
358	>	if (sm != null) {
359	>	try {
360	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
361	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
362	>	} catch (AccessControlException e) {
363	>	return false;
364	>	}
365		}
366	<	catch (ExecutionException ex) {
367	<	fail("Unexpected exception");
366	>	return true;
367	>	}
368	>
369	>	void checkCCL() {
370	>	SecurityManager sm = System.getSecurityManager();
371	>	if (sm != null) {
372	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
373	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
374		}
375	<	catch (InterruptedException ex) {
376	<	fail("Unexpected exception");
375	>	}
376	>
377	>	class CheckCCL implements Callable<Object> {
378	>	public Object call() {
379	>	checkCCL();
380	>	return null;
381		}
382		}
383
384	<	public void testInvokeCallable () {
385	<	try {
386	<	Executor e = new DirectExecutor();
387	<	String result = Executors.invoke(e, new StringTask());
384	>	/**
385	>	* Without class loader permissions, creating
386	>	* privilegedCallableUsingCurrentClassLoader throws ACE
387	>	*/
388	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
389	>	Runnable r = new CheckedRunnable() {
390	>	public void realRun() throws Exception {
391	>	if (System.getSecurityManager() == null)
392	>	return;
393	>	try {
394	>	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
395	>	shouldThrow();
396	>	} catch (AccessControlException success) {}
397	>	}};
398
399	<	assertSame("should return test string", TEST_STRING, result);
286	<	}
287	<	catch (ExecutionException ex) {
288	<	fail("Unexpected exception" );
289	<	}
290	<	catch (InterruptedException ex) {
291	<	fail("Unexpected exception");
292	<	}
399	>	runWithoutPermissions(r);
400		}
401
402	<	private static final String TEST_STRING = "a test string";
402	>	/**
403	>	* With class loader permissions, calling
404	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
405	>	*/
406	>	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
407	>	Runnable r = new CheckedRunnable() {
408	>	public void realRun() throws Exception {
409	>	Executors.privilegedCallableUsingCurrentClassLoader
410	>	(new NoOpCallable())
411	>	.call();
412	>	}};
413	>
414	>	runWithPermissions(r,
415	>	new RuntimePermission("getClassLoader"),
416	>	new RuntimePermission("setContextClassLoader"));
417	>	}
418
419	<	private static class Task implements Runnable {
420	<	public void run() { completed = true; }
421	<	public boolean isCompleted() { return completed; }
422	<	public void reset() { completed = false; }
423	<	private boolean completed = false;
419	>	/**
420	>	* Without permissions, calling privilegedCallable throws ACE
421	>	*/
422	>	public void testprivilegedCallableWithNoPrivs() throws Exception {
423	>	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
424	>	Executors.privilegedCallable(new CheckCCL());
425	>
426	>	Runnable r = new CheckedRunnable() {
427	>	public void realRun() throws Exception {
428	>	if (System.getSecurityManager() == null)
429	>	return;
430	>	Callable task = Executors.privilegedCallable(new CheckCCL());
431	>	try {
432	>	task.call();
433	>	shouldThrow();
434	>	} catch (AccessControlException success) {}
435	>	}};
436	>
437	>	runWithoutPermissions(r);
438	>
439	>	// It seems rather difficult to test that the
440	>	// AccessControlContext of the privilegedCallable is used
441	>	// instead of its caller.  Below is a failed attempt to do
442	>	// that, which does not work because the AccessController
443	>	// cannot capture the internal state of the current Policy.
444	>	// It would be much more work to differentiate based on,
445	>	// e.g. CodeSource.
446	>
447	>	//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
448	>	//         final Callable[] task = new Callable[1];
449	>
450	>	//         runWithPermissions
451	>	//             (new CheckedRunnable() {
452	>	//                 public void realRun() {
453	>	//                     if (System.getSecurityManager() == null)
454	>	//                         return;
455	>	//                     noprivAcc[0] = AccessController.getContext();
456	>	//                     task[0] = Executors.privilegedCallable(new CheckCCL());
457	>	//                     try {
458	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
459	>	//                                                           public Void run() {
460	>	//                                                               checkCCL();
461	>	//                                                               return null;
462	>	//                                                           }}, noprivAcc[0]);
463	>	//                         shouldThrow();
464	>	//                     } catch (AccessControlException success) {}
465	>	//                 }});
466	>
467	>	//         runWithPermissions
468	>	//             (new CheckedRunnable() {
469	>	//                 public void realRun() throws Exception {
470	>	//                     if (System.getSecurityManager() == null)
471	>	//                         return;
472	>	//                     // Verify that we have an underprivileged ACC
473	>	//                     try {
474	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
475	>	//                                                           public Void run() {
476	>	//                                                               checkCCL();
477	>	//                                                               return null;
478	>	//                                                           }}, noprivAcc[0]);
479	>	//                         shouldThrow();
480	>	//                     } catch (AccessControlException success) {}
481	>
482	>	//                     try {
483	>	//                         task[0].call();
484	>	//                         shouldThrow();
485	>	//                     } catch (AccessControlException success) {}
486	>	//                 }},
487	>	//              new RuntimePermission("getClassLoader"),
488	>	//              new RuntimePermission("setContextClassLoader"));
489		}
490
491	<	private static class StringTask implements Callable<String> {
492	<	public String call() { return TEST_STRING; }
491	>	/**
492	>	* With permissions, calling privilegedCallable succeeds
493	>	*/
494	>	public void testprivilegedCallableWithPrivs() throws Exception {
495	>	Runnable r = new CheckedRunnable() {
496	>	public void realRun() throws Exception {
497	>	Executors.privilegedCallable(new CheckCCL()).call();
498	>	}};
499	>
500	>	runWithPermissions(r,
501	>	new RuntimePermission("getClassLoader"),
502	>	new RuntimePermission("setContextClassLoader"));
503		}
504
505	<	static class DirectExecutor implements Executor {
506	<	public void execute(Runnable r) {
507	<	r.run();
508	<	}
505	>	/**
506	>	* callable(Runnable) returns null when called
507	>	*/
508	>	public void testCallable1() throws Exception {
509	>	Callable c = Executors.callable(new NoOpRunnable());
510	>	assertNull(c.call());
511		}
512
513		/**
514	<	* Check that timeouts from execute will time out if they compute
316	<	* too long.
514	>	* callable(Runnable, result) returns result when called
515		*/
516	+	public void testCallable2() throws Exception {
517	+	Callable c = Executors.callable(new NoOpRunnable(), one);
518	+	assertSame(one, c.call());
519	+	}
520
521	<	public void testTimedCallable() {
522	<	int N = 10000;
523	<	ExecutorService executor = Executors.newSingleThreadExecutor();
524	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
525	<	try {
526	<	long startTime = System.currentTimeMillis();
527	<
326	<	long i = 0;
327	<	while (tasks.size() < N) {
328	<	tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
329	<	i += 10;
330	<	}
331	<
332	<	int iters = 0;
333	<	BigInteger sum = BigInteger.ZERO;
334	<	for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
335	<	try {
336	<	++iters;
337	<	sum = sum.add(it.next().call());
338	<	}
339	<	catch (TimeoutException success) {
340	<	assertTrue(iters > 0);
341	<	return;
342	<	}
343	<	catch (Exception e) {
344	<	fail("unexpected exception: " + e);
345	<	}
346	<	}
347	<	// if by chance we didn't ever time out, total time must be small
348	<	long elapsed = System.currentTimeMillis() - startTime;
349	<	assertTrue(elapsed < N);
350	<	}
351	<	finally {
352	<	executor.shutdownNow();
353	<	}
521	>	/**
522	>	* callable(PrivilegedAction) returns its result when called
523	>	*/
524	>	public void testCallable3() throws Exception {
525	>	Callable c = Executors.callable(new PrivilegedAction() {
526	>	public Object run() { return one; }});
527	>	assertSame(one, c.call());
528		}
529
530	<
531	<	static class TimedCallable<T> implements Callable<T> {
532	<	private final Executor exec;
533	<	private final Callable<T> func;
534	<	private final long msecs;
535	<
536	<	TimedCallable(Executor exec, Callable<T> func, long msecs) {
363	<	this.exec = exec;
364	<	this.func = func;
365	<	this.msecs = msecs;
366	<	}
367	<
368	<	public T call() throws Exception {
369	<	Future<T> ftask = Executors.execute(exec, func);
370	<	try {
371	<	return ftask.get(msecs, TimeUnit.MILLISECONDS);
372	<	} finally {
373	<	ftask.cancel(true);
374	<	}
375	<	}
530	>	/**
531	>	* callable(PrivilegedExceptionAction) returns its result when called
532	>	*/
533	>	public void testCallable4() throws Exception {
534	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
535	>	public Object run() { return one; }});
536	>	assertSame(one, c.call());
537		}
538
539	+	/**
540	+	* callable(null Runnable) throws NPE
541	+	*/
542	+	public void testCallableNPE1() {
543	+	try {
544	+	Callable c = Executors.callable((Runnable) null);
545	+	shouldThrow();
546	+	} catch (NullPointerException success) {}
547	+	}
548
549	<	private static class Fib implements Callable<BigInteger> {
550	<	private final BigInteger n;
551	<	Fib(long n) {
552	<	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
553	<	this.n = BigInteger.valueOf(n);
554	<	}
555	<	public BigInteger call() {
556	<	BigInteger f1 = BigInteger.ONE;
557	<	BigInteger f2 = f1;
388	<	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
389	<	BigInteger t = f1.add(f2);
390	<	f1 = f2;
391	<	f2 = t;
392	<	}
393	<	return f1;
394	<	}
395	<	};
549	>	/**
550	>	* callable(null, result) throws NPE
551	>	*/
552	>	public void testCallableNPE2() {
553	>	try {
554	>	Callable c = Executors.callable((Runnable) null, one);
555	>	shouldThrow();
556	>	} catch (NullPointerException success) {}
557	>	}
558
559	+	/**
560	+	* callable(null PrivilegedAction) throws NPE
561	+	*/
562	+	public void testCallableNPE3() {
563	+	try {
564	+	Callable c = Executors.callable((PrivilegedAction) null);
565	+	shouldThrow();
566	+	} catch (NullPointerException success) {}
567	+	}
568
569	+	/**
570	+	* callable(null PrivilegedExceptionAction) throws NPE
571	+	*/
572	+	public void testCallableNPE4() {
573	+	try {
574	+	Callable c = Executors.callable((PrivilegedExceptionAction) null);
575	+	shouldThrow();
576	+	} catch (NullPointerException success) {}
577	+	}
578
579		}

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