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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 1.31 by jsr166, Thu Sep 16 00:52:49 2010 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/licenses/publicdomain
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9
10		import junit.framework.*;
11		import java.util.*;
12		import java.util.concurrent.*;
13	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
14		import java.math.BigInteger;
15	+	import java.security.*;
16
17	<	public class ExecutorsTest extends TestCase{
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	<	private static long SHORT_DELAY_MS = 100;
26	<	private static long MEDIUM_DELAY_MS = 1000;
27	<	private static long LONG_DELAY_MS = 10000;
28	<
29	<	class SleepRun implements Runnable {
30	<	public void run() {
31	<	try{
32	<	Thread.sleep(MEDIUM_DELAY_MS);
33	<	} catch(InterruptedException e){
34	<	fail("unexpected exception");
35	<	}
36	<	}
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		}
38	–
35
36	<	class SleepCall implements Callable {
37	<	public Object call(){
38	<	try{
39	<	Thread.sleep(MEDIUM_DELAY_MS);
40	<	}catch(InterruptedException e){
41	<	fail("unexpected exception");
42	<	}
43	<	return Boolean.TRUE;
44	<	}
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	+	/**
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	<	*  Test to verify execute(Executor, Runnable) will throw
60	<	*  RejectedExecutionException Attempting to execute a runnable on
61	<	*  a full ThreadPool will cause such an exception here, up to 5
62	<	*  runnables are attempted on a pool capable on handling one
63	<	*  until it throws an exception
64	<	*/
65	<	public void testExecute1(){
66	<	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();
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	<	*  Test to verify execute(Executor, Callable) will throw
71	<	*  RejectedExecutionException Attempting to execute a callable on
72	<	*  a full ThreadPool will cause such an exception here, up to 5
73	<	*  runnables are attempted on a pool capable on handling one
74	<	*  until it throws an exception
75	<	*/
76	<	public void testExecute2(){
77	<	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();
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		/**
91	<	*  Test to verify invoke(Executor, Runnable) throws InterruptedException
92	<	*  A single use of invoke starts that will wait long enough
93	<	*  for the invoking thread to be interrupted
94	<	*/
95	<	public void testInvoke2(){
96	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
97	<	Thread t = new Thread(new Runnable() {
98	<	public void run(){
99	<	try{
100	<	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");
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		}
124	–	p.shutdownNow();
102		}
103
104	+
105		/**
106	<	*  Test to verify invoke(Executor, Runnable) will throw
107	<	*  ExecutionException An ExecutionException occurs when the
108	<	*  underlying Runnable throws an exception, here the
109	<	*  DivideByZeroException will cause an ExecutionException
110	<	*/
111	<	public void testInvoke3(){
112	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
113	<	try{
136	<	Runnable r = new Runnable(){
137	<	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");
150	<	}
151	<	p.shutdownNow();
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	+	* 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	<	*  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
138	>	* A new newFixedThreadPool with 0 threads throws IAE
139		*/
140	<	public void testInvoke5(){
141	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
142	<
143	<	final Callable c = new Callable(){
144	<	public Object call(){
145	<	try{
167	<	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	<	};
140	>	public void testNewFixedThreadPool4() {
141	>	try {
142	>	ExecutorService e = Executors.newFixedThreadPool(0);
143	>	shouldThrow();
144	>	} catch (IllegalArgumentException success) {}
145	>	}
146
147
148	<
149	<	Thread t = new Thread(new Runnable(){
150	<	public void run(){
151	<	try{
152	<	c.call();
153	<	}catch(Exception e){}
154	<	}
155	<	});
156	<	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();
148	>	/**
149	>	* An unconfigurable newFixedThreadPool can execute runnables
150	>	*/
151	>	public void testunconfigurableExecutorService() {
152	>	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
153	>	e.execute(new NoOpRunnable());
154	>	e.execute(new NoOpRunnable());
155	>	e.execute(new NoOpRunnable());
156	>	joinPool(e);
157		}
158
159		/**
160	<	*  Test to verify invoke(Executor, Callable) will throw ExecutionException
161	<	*  An ExecutionException occurs when the underlying Runnable throws
162	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
163	<	*/
164	<	public void testInvoke6(){
165	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
166	<
205	<	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();
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
229	–	assertFalse("task should not be complete", task.isCompleted());
179
180	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
181	<	String result = future.get();
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	<	assertTrue("task should be complete", task.isCompleted());
195	<	assertSame("should return test string", TEST_STRING, result);
196	<	}
197	<	catch (ExecutionException ex) {
198	<	fail("Unexpected exception");
199	<	}
200	<	catch (InterruptedException ex) {
201	<	fail("Unexpected exception");
202	<	}
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	<	public void testInvokeRunnable () {
209	<	try {
210	<	Executor e = new DirectExecutor();
211	<	Task task = new Task();
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	<	assertFalse("task should not be complete", task.isCompleted());
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
252	–	Executors.invoke(e, task);
254
255	<	assertTrue("task should be complete", task.isCompleted());
256	<	}
257	<	catch (ExecutionException ex) {
258	<	fail("Unexpected exception");
259	<	}
260	<	catch (InterruptedException ex) {
261	<	fail("Unexpected exception");
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 CheckedRunnable() {
262	>	public void realRun() {
263	>	try {
264	>	Thread current = Thread.currentThread();
265	>	assertTrue(!current.isDaemon());
266	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
267	>	ThreadGroup g = current.getThreadGroup();
268	>	SecurityManager s = System.getSecurityManager();
269	>	if (s != null)
270	>	assertTrue(g == s.getThreadGroup());
271	>	else
272	>	assertTrue(g == egroup);
273	>	String name = current.getName();
274	>	assertTrue(name.endsWith("thread-1"));
275	>	} catch (SecurityException ok) {
276	>	// Also pass if not allowed to change setting
277	>	}
278	>	}};
279	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
280	>
281	>	e.execute(r);
282	>	try {
283	>	e.shutdown();
284	>	} catch (SecurityException ok) {
285		}
262	–	}
286
264	–	public void testExecuteCallable () {
287		try {
288	<	Executor e = new DirectExecutor();
289	<	Future<String> future = Executors.execute(e, new StringTask());
290	<	String result = future.get();
288	>	Thread.sleep(SHORT_DELAY_MS);
289	>	} finally {
290	>	joinPool(e);
291	>	}
292	>	}
293
294	<	assertSame("should return test string", TEST_STRING, result);
294	>	/**
295	>	* ThreadPoolExecutor using privilegedThreadFactory has
296	>	* specified group, priority, daemon status, name,
297	>	* access control context and context class loader
298	>	*/
299	>	public void testPrivilegedThreadFactory() throws Exception {
300	>	Runnable r = new CheckedRunnable() {
301	>	public void realRun() throws Exception {
302	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
303	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
304	>	final AccessControlContext thisacc = AccessController.getContext();
305	>	Runnable r = new CheckedRunnable() {
306	>	public void realRun() {
307	>	Thread current = Thread.currentThread();
308	>	assertTrue(!current.isDaemon());
309	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
310	>	ThreadGroup g = current.getThreadGroup();
311	>	SecurityManager s = System.getSecurityManager();
312	>	if (s != null)
313	>	assertTrue(g == s.getThreadGroup());
314	>	else
315	>	assertTrue(g == egroup);
316	>	String name = current.getName();
317	>	assertTrue(name.endsWith("thread-1"));
318	>	assertSame(thisccl, current.getContextClassLoader());
319	>	assertEquals(thisacc, AccessController.getContext());
320	>	}};
321	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
322	>	e.execute(r);
323	>	e.shutdown();
324	>	Thread.sleep(SHORT_DELAY_MS);
325	>	joinPool(e);
326	>	}};
327	>
328	>	runWithPermissions(r,
329	>	new RuntimePermission("getClassLoader"),
330	>	new RuntimePermission("setContextClassLoader"),
331	>	new RuntimePermission("modifyThread"));
332	>	}
333	>
334	>	boolean haveCCLPermissions() {
335	>	SecurityManager sm = System.getSecurityManager();
336	>	if (sm != null) {
337	>	try {
338	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
339	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
340	>	} catch (AccessControlException e) {
341	>	return false;
342	>	}
343		}
344	<	catch (ExecutionException ex) {
345	<	fail("Unexpected exception");
344	>	return true;
345	>	}
346	>
347	>	void checkCCL() {
348	>	SecurityManager sm = System.getSecurityManager();
349	>	if (sm != null) {
350	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
351	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
352		}
353	<	catch (InterruptedException ex) {
354	<	fail("Unexpected exception");
353	>	}
354	>
355	>	class CheckCCL implements Callable<Object> {
356	>	public Object call() {
357	>	checkCCL();
358	>	return null;
359		}
360		}
361
280	–	public void testInvokeCallable () {
281	–	try {
282	–	Executor e = new DirectExecutor();
283	–	String result = Executors.invoke(e, new StringTask());
362
363	<	assertSame("should return test string", TEST_STRING, result);
364	<	}
365	<	catch (ExecutionException ex) {
366	<	fail("Unexpected exception" );
367	<	}
368	<	catch (InterruptedException ex) {
369	<	fail("Unexpected exception");
370	<	}
363	>	/**
364	>	* Without class loader permissions, creating
365	>	* privilegedCallableUsingCurrentClassLoader throws ACE
366	>	*/
367	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
368	>	Runnable r = new CheckedRunnable() {
369	>	public void realRun() throws Exception {
370	>	if (System.getSecurityManager() == null)
371	>	return;
372	>	try {
373	>	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
374	>	shouldThrow();
375	>	} catch (AccessControlException success) {}
376	>	}};
377	>
378	>	runWithoutPermissions(r);
379		}
380
381	<	private static final String TEST_STRING = "a test string";
381	>	/**
382	>	* With class loader permissions, calling
383	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
384	>	*/
385	>	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
386	>	Runnable r = new CheckedRunnable() {
387	>	public void realRun() throws Exception {
388	>	Executors.privilegedCallableUsingCurrentClassLoader
389	>	(new NoOpCallable())
390	>	.call();
391	>	}};
392	>
393	>	runWithPermissions(r,
394	>	new RuntimePermission("getClassLoader"),
395	>	new RuntimePermission("setContextClassLoader"));
396	>	}
397
398	<	private static class Task implements Runnable {
399	<	public void run() { completed = true; }
400	<	public boolean isCompleted() { return completed; }
401	<	public void reset() { completed = false; }
402	<	private boolean completed = false;
398	>	/**
399	>	* Without permissions, calling privilegedCallable throws ACE
400	>	*/
401	>	public void testprivilegedCallableWithNoPrivs() throws Exception {
402	>	Runnable r = new CheckedRunnable() {
403	>	public void realRun() throws Exception {
404	>	if (System.getSecurityManager() == null)
405	>	return;
406	>	Callable task = Executors.privilegedCallable(new CheckCCL());
407	>	try {
408	>	task.call();
409	>	shouldThrow();
410	>	} catch (AccessControlException success) {}
411	>	}};
412	>
413	>	runWithoutPermissions(r);
414	>
415	>	// It seems rather difficult to test that the
416	>	// AccessControlContext of the privilegedCallable is used
417	>	// instead of its caller.  Below is a failed attempt to do
418	>	// that, which does not work because the AccessController
419	>	// cannot capture the internal state of the current Policy.
420	>	// It would be much more work to differentiate based on,
421	>	// e.g. CodeSource.
422	>
423	>	//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
424	>	//         final Callable[] task = new Callable[1];
425	>
426	>	//         runWithPermissions
427	>	//             (new CheckedRunnable() {
428	>	//                 public void realRun() {
429	>	//                     if (System.getSecurityManager() == null)
430	>	//                         return;
431	>	//                     noprivAcc[0] = AccessController.getContext();
432	>	//                     task[0] = Executors.privilegedCallable(new CheckCCL());
433	>	//                     try {
434	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
435	>	//                                                           public Void run() {
436	>	//                                                               checkCCL();
437	>	//                                                               return null;
438	>	//                                                           }}, noprivAcc[0]);
439	>	//                         shouldThrow();
440	>	//                     } catch (AccessControlException success) {}
441	>	//                 }});
442	>
443	>	//         runWithPermissions
444	>	//             (new CheckedRunnable() {
445	>	//                 public void realRun() throws Exception {
446	>	//                     if (System.getSecurityManager() == null)
447	>	//                         return;
448	>	//                     // Verify that we have an underprivileged ACC
449	>	//                     try {
450	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
451	>	//                                                           public Void run() {
452	>	//                                                               checkCCL();
453	>	//                                                               return null;
454	>	//                                                           }}, noprivAcc[0]);
455	>	//                         shouldThrow();
456	>	//                     } catch (AccessControlException success) {}
457	>
458	>	//                     try {
459	>	//                         task[0].call();
460	>	//                         shouldThrow();
461	>	//                     } catch (AccessControlException success) {}
462	>	//                 }},
463	>	//              new RuntimePermission("getClassLoader"),
464	>	//              new RuntimePermission("setContextClassLoader"));
465		}
466
467	<	private static class StringTask implements Callable<String> {
468	<	public String call() { return TEST_STRING; }
467	>	/**
468	>	* With permissions, calling privilegedCallable succeeds
469	>	*/
470	>	public void testprivilegedCallableWithPrivs() throws Exception {
471	>	Runnable r = new CheckedRunnable() {
472	>	public void realRun() throws Exception {
473	>	Executors.privilegedCallable(new CheckCCL()).call();
474	>	}};
475	>
476	>	runWithPermissions(r,
477	>	new RuntimePermission("getClassLoader"),
478	>	new RuntimePermission("setContextClassLoader"));
479		}
480
481	<	static class DirectExecutor implements Executor {
482	<	public void execute(Runnable r) {
483	<	r.run();
484	<	}
481	>	/**
482	>	* callable(Runnable) returns null when called
483	>	*/
484	>	public void testCallable1() throws Exception {
485	>	Callable c = Executors.callable(new NoOpRunnable());
486	>	assertNull(c.call());
487		}
488
489		/**
490	<	* Check that timeouts from execute will time out if they compute
316	<	* too long.
490	>	* callable(Runnable, result) returns result when called
491		*/
492	+	public void testCallable2() throws Exception {
493	+	Callable c = Executors.callable(new NoOpRunnable(), one);
494	+	assertSame(one, c.call());
495	+	}
496
497	<	public void testTimedCallable() {
498	<	int N = 10000;
499	<	ExecutorService executor = Executors.newSingleThreadExecutor();
500	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
501	<	try {
502	<	long startTime = System.currentTimeMillis();
503	<
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	<	}
497	>	/**
498	>	* callable(PrivilegedAction) returns its result when called
499	>	*/
500	>	public void testCallable3() throws Exception {
501	>	Callable c = Executors.callable(new PrivilegedAction() {
502	>	public Object run() { return one; }});
503	>	assertSame(one, c.call());
504		}
505
506	<
507	<	static class TimedCallable<T> implements Callable<T> {
508	<	private final Executor exec;
509	<	private final Callable<T> func;
510	<	private final long msecs;
511	<
512	<	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	<	}
506	>	/**
507	>	* callable(PrivilegedExceptionAction) returns its result when called
508	>	*/
509	>	public void testCallable4() throws Exception {
510	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
511	>	public Object run() { return one; }});
512	>	assertSame(one, c.call());
513		}
514
515
516	<	private static class Fib implements Callable<BigInteger> {
517	<	private final BigInteger n;
518	<	Fib(long n) {
519	<	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
520	<	this.n = BigInteger.valueOf(n);
521	<	}
522	<	public BigInteger call() {
523	<	BigInteger f1 = BigInteger.ONE;
524	<	BigInteger f2 = f1;
525	<	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
526	<	BigInteger t = f1.add(f2);
527	<	f1 = f2;
528	<	f2 = t;
529	<	}
530	<	return f1;
531	<	}
532	<	};
516	>	/**
517	>	* callable(null Runnable) throws NPE
518	>	*/
519	>	public void testCallableNPE1() {
520	>	try {
521	>	Callable c = Executors.callable((Runnable) null);
522	>	shouldThrow();
523	>	} catch (NullPointerException success) {}
524	>	}
525	>
526	>	/**
527	>	* callable(null, result) throws NPE
528	>	*/
529	>	public void testCallableNPE2() {
530	>	try {
531	>	Callable c = Executors.callable((Runnable) null, one);
532	>	shouldThrow();
533	>	} catch (NullPointerException success) {}
534	>	}
535
536	+	/**
537	+	* callable(null PrivilegedAction) throws NPE
538	+	*/
539	+	public void testCallableNPE3() {
540	+	try {
541	+	Callable c = Executors.callable((PrivilegedAction) null);
542	+	shouldThrow();
543	+	} catch (NullPointerException success) {}
544	+	}
545	+
546	+	/**
547	+	* callable(null PrivilegedExceptionAction) throws NPE
548	+	*/
549	+	public void testCallableNPE4() {
550	+	try {
551	+	Callable c = Executors.callable((PrivilegedExceptionAction) null);
552	+	shouldThrow();
553	+	} catch (NullPointerException success) {}
554	+	}
555
556
557		}

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