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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 1.36 by jsr166, Tue Nov 9 15:29:11 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
90	–
80		/**
81	<	*  Test to verify invoke(Executor, Runnable) throws InterruptedException
82	<	*  A single use of invoke starts that will wait long enough
83	<	*  for the invoking thread to be interrupted
84	<	*/
85	<	public void testInvoke2(){
86	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
87	<	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();
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) will throw
92	<	*  ExecutionException An ExecutionException occurs when the
93	<	*  underlying Runnable throws an exception, here the
94	<	*  DivideByZeroException will cause an ExecutionException
95	<	*/
96	<	public void testInvoke3(){
97	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
98	<	try{
99	<	Runnable r = new Runnable(){
100	<	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");
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		}
151	–	p.shutdownNow();
102		}
103
104
105	+	/**
106	+	* A new newFixedThreadPool can execute runnables
107	+	*/
108	+	public void testNewFixedThreadPool1() {
109	+	ExecutorService e = Executors.newFixedThreadPool(2);
110	+	e.execute(new NoOpRunnable());
111	+	e.execute(new NoOpRunnable());
112	+	e.execute(new NoOpRunnable());
113	+	joinPool(e);
114	+	}
115
116		/**
117	<	*  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
117	>	* A new newFixedThreadPool with given ThreadFactory can execute runnables
118		*/
119	<	public void testInvoke5(){
120	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
121	<
122	<	final Callable c = new Callable(){
123	<	public Object call(){
124	<	try{
125	<	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	<	};
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	<	Thread t = new Thread(new Runnable(){
139	<	public void run(){
140	<	try{
141	<	c.call();
142	<	}catch(Exception e){}
143	<	}
144	<	});
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();
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	<	*  Test to verify invoke(Executor, Callable) will throw ExecutionException
150	<	*  An ExecutionException occurs when the underlying Runnable throws
151	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
152	<	*/
153	<	public void testInvoke6(){
154	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
155	<
156	<	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();
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	<	public void testExecuteRunnable () {
159	>	/**
160	>	* unconfigurableExecutorService(null) throws NPE
161	>	*/
162	>	public void testunconfigurableExecutorServiceNPE() {
163		try {
164	<	Executor e = new DirectExecutor();
165	<	Task task = new Task();
164	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
165	>	shouldThrow();
166	>	} catch (NullPointerException success) {}
167	>	}
168
169	<	assertFalse("task should not be complete", task.isCompleted());
169	>	/**
170	>	* unconfigurableScheduledExecutorService(null) throws NPE
171	>	*/
172	>	public void testunconfigurableScheduledExecutorServiceNPE() {
173	>	try {
174	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
175	>	shouldThrow();
176	>	} catch (NullPointerException success) {}
177	>	}
178
231	–	Future<String> future = Executors.execute(e, task, TEST_STRING);
232	–	String result = future.get();
179
180	<	assertTrue("task should be complete", task.isCompleted());
181	<	assertSame("should return test string", TEST_STRING, result);
182	<	}
183	<	catch (ExecutionException ex) {
184	<	fail("Unexpected exception");
180	>	/**
181	>	* a newSingleThreadScheduledExecutor successfully runs delayed task
182	>	*/
183	>	public void testNewSingleThreadScheduledExecutor() throws Exception {
184	>	ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
185	>	try {
186	>	final CountDownLatch done = new CountDownLatch(1);
187	>	final Runnable task = new CheckedRunnable() {
188	>	public void realRun() {
189	>	done.countDown();
190	>	}};
191	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
192	>	SHORT_DELAY_MS, MILLISECONDS);
193	>	assertFalse(f.isDone());
194	>	assertTrue(done.await(MEDIUM_DELAY_MS, MILLISECONDS));
195	>	assertSame(Boolean.TRUE, f.get(SMALL_DELAY_MS, MILLISECONDS));
196	>	assertSame(Boolean.TRUE, f.get());
197	>	assertTrue(f.isDone());
198	>	} finally {
199	>	joinPool(p);
200		}
201	<	catch (InterruptedException ex) {
202	<	fail("Unexpected exception");
201	>	}
202	>
203	>	/**
204	>	* a newScheduledThreadPool successfully runs delayed task
205	>	*/
206	>	public void testnewScheduledThreadPool() throws Exception {
207	>	ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
208	>	try {
209	>	final CountDownLatch done = new CountDownLatch(1);
210	>	final Runnable task = new CheckedRunnable() {
211	>	public void realRun() {
212	>	done.countDown();
213	>	}};
214	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
215	>	SHORT_DELAY_MS, MILLISECONDS);
216	>	assertFalse(f.isDone());
217	>	assertTrue(done.await(MEDIUM_DELAY_MS, MILLISECONDS));
218	>	assertSame(Boolean.TRUE, f.get(SMALL_DELAY_MS, MILLISECONDS));
219	>	assertSame(Boolean.TRUE, f.get());
220	>	assertTrue(f.isDone());
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 done = new CountDownLatch(1);
235	>	final Runnable task = new CheckedRunnable() {
236	>	public void realRun() {
237	>	done.countDown();
238	>	}};
239	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
240	>	SHORT_DELAY_MS, MILLISECONDS);
241	>	assertFalse(f.isDone());
242	>	assertTrue(done.await(MEDIUM_DELAY_MS, MILLISECONDS));
243	>	assertSame(Boolean.TRUE, f.get(SMALL_DELAY_MS, MILLISECONDS));
244	>	assertSame(Boolean.TRUE, f.get());
245	>	assertTrue(f.isDone());
246	>	} finally {
247	>	joinPool(p);
248	>	}
249	>	}
250
251	<	assertFalse("task should not be complete", task.isCompleted());
251	>	/**
252	>	* Future.get on submitted tasks will time out if they compute too long.
253	>	*/
254	>	public void testTimedCallable() throws Exception {
255	>	final Runnable sleeper = new CheckedInterruptedRunnable() {
256	>	public void realRun() throws InterruptedException {
257	>	Thread.sleep(LONG_DELAY_MS);
258	>	}};
259	>	for (ExecutorService executor :
260	>	new ExecutorService[] {
261	>	Executors.newSingleThreadExecutor(),
262	>	Executors.newCachedThreadPool(),
263	>	Executors.newFixedThreadPool(2),
264	>	Executors.newScheduledThreadPool(2),
265	>	}) {
266	>	try {
267	>	Future future = executor.submit(sleeper);
268	>	try {
269	>	future.get(SHORT_DELAY_MS, MILLISECONDS);
270	>	shouldThrow();
271	>	} catch (TimeoutException success) {
272	>	} finally {
273	>	future.cancel(true);
274	>	}
275	>	}
276	>	finally {
277	>	joinPool(executor);
278	>	}
279	>	}
280	>	}
281
252	–	Executors.invoke(e, task);
282
283	<	assertTrue("task should be complete", task.isCompleted());
284	<	}
285	<	catch (ExecutionException ex) {
286	<	fail("Unexpected exception");
287	<	}
288	<	catch (InterruptedException ex) {
289	<	fail("Unexpected exception");
283	>	/**
284	>	* ThreadPoolExecutor using defaultThreadFactory has
285	>	* specified group, priority, daemon status, and name
286	>	*/
287	>	public void testDefaultThreadFactory() throws Exception {
288	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
289	>	Runnable r = new CheckedRunnable() {
290	>	public void realRun() {
291	>	try {
292	>	Thread current = Thread.currentThread();
293	>	assertTrue(!current.isDaemon());
294	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
295	>	ThreadGroup g = current.getThreadGroup();
296	>	SecurityManager s = System.getSecurityManager();
297	>	if (s != null)
298	>	assertTrue(g == s.getThreadGroup());
299	>	else
300	>	assertTrue(g == egroup);
301	>	String name = current.getName();
302	>	assertTrue(name.endsWith("thread-1"));
303	>	} catch (SecurityException ok) {
304	>	// Also pass if not allowed to change setting
305	>	}
306	>	}};
307	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
308	>
309	>	e.execute(r);
310	>	try {
311	>	e.shutdown();
312	>	} catch (SecurityException ok) {
313		}
262	–	}
314
264	–	public void testExecuteCallable () {
315		try {
316	<	Executor e = new DirectExecutor();
317	<	Future<String> future = Executors.execute(e, new StringTask());
318	<	String result = future.get();
316	>	Thread.sleep(SHORT_DELAY_MS);
317	>	} finally {
318	>	joinPool(e);
319	>	}
320	>	}
321
322	<	assertSame("should return test string", TEST_STRING, result);
322	>	/**
323	>	* ThreadPoolExecutor using privilegedThreadFactory has
324	>	* specified group, priority, daemon status, name,
325	>	* access control context and context class loader
326	>	*/
327	>	public void testPrivilegedThreadFactory() throws Exception {
328	>	Runnable r = new CheckedRunnable() {
329	>	public void realRun() throws Exception {
330	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
331	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
332	>	final AccessControlContext thisacc = AccessController.getContext();
333	>	Runnable r = new CheckedRunnable() {
334	>	public void realRun() {
335	>	Thread current = Thread.currentThread();
336	>	assertTrue(!current.isDaemon());
337	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
338	>	ThreadGroup g = current.getThreadGroup();
339	>	SecurityManager s = System.getSecurityManager();
340	>	if (s != null)
341	>	assertTrue(g == s.getThreadGroup());
342	>	else
343	>	assertTrue(g == egroup);
344	>	String name = current.getName();
345	>	assertTrue(name.endsWith("thread-1"));
346	>	assertSame(thisccl, current.getContextClassLoader());
347	>	assertEquals(thisacc, AccessController.getContext());
348	>	}};
349	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
350	>	e.execute(r);
351	>	e.shutdown();
352	>	Thread.sleep(SHORT_DELAY_MS);
353	>	joinPool(e);
354	>	}};
355	>
356	>	runWithPermissions(r,
357	>	new RuntimePermission("getClassLoader"),
358	>	new RuntimePermission("setContextClassLoader"),
359	>	new RuntimePermission("modifyThread"));
360	>	}
361	>
362	>	boolean haveCCLPermissions() {
363	>	SecurityManager sm = System.getSecurityManager();
364	>	if (sm != null) {
365	>	try {
366	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
367	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
368	>	} catch (AccessControlException e) {
369	>	return false;
370	>	}
371		}
372	<	catch (ExecutionException ex) {
373	<	fail("Unexpected exception");
372	>	return true;
373	>	}
374	>
375	>	void checkCCL() {
376	>	SecurityManager sm = System.getSecurityManager();
377	>	if (sm != null) {
378	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
379	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
380		}
381	<	catch (InterruptedException ex) {
382	<	fail("Unexpected exception");
381	>	}
382	>
383	>	class CheckCCL implements Callable<Object> {
384	>	public Object call() {
385	>	checkCCL();
386	>	return null;
387		}
388		}
389
280	–	public void testInvokeCallable () {
281	–	try {
282	–	Executor e = new DirectExecutor();
283	–	String result = Executors.invoke(e, new StringTask());
390
391	<	assertSame("should return test string", TEST_STRING, result);
392	<	}
393	<	catch (ExecutionException ex) {
394	<	fail("Unexpected exception" );
395	<	}
396	<	catch (InterruptedException ex) {
397	<	fail("Unexpected exception");
398	<	}
391	>	/**
392	>	* Without class loader permissions, creating
393	>	* privilegedCallableUsingCurrentClassLoader throws ACE
394	>	*/
395	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
396	>	Runnable r = new CheckedRunnable() {
397	>	public void realRun() throws Exception {
398	>	if (System.getSecurityManager() == null)
399	>	return;
400	>	try {
401	>	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
402	>	shouldThrow();
403	>	} catch (AccessControlException success) {}
404	>	}};
405	>
406	>	runWithoutPermissions(r);
407		}
408
409	<	private static final String TEST_STRING = "a test string";
409	>	/**
410	>	* With class loader permissions, calling
411	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
412	>	*/
413	>	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
414	>	Runnable r = new CheckedRunnable() {
415	>	public void realRun() throws Exception {
416	>	Executors.privilegedCallableUsingCurrentClassLoader
417	>	(new NoOpCallable())
418	>	.call();
419	>	}};
420	>
421	>	runWithPermissions(r,
422	>	new RuntimePermission("getClassLoader"),
423	>	new RuntimePermission("setContextClassLoader"));
424	>	}
425
426	<	private static class Task implements Runnable {
427	<	public void run() { completed = true; }
428	<	public boolean isCompleted() { return completed; }
429	<	public void reset() { completed = false; }
430	<	private boolean completed = false;
426	>	/**
427	>	* Without permissions, calling privilegedCallable throws ACE
428	>	*/
429	>	public void testprivilegedCallableWithNoPrivs() throws Exception {
430	>	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
431	>	Executors.privilegedCallable(new CheckCCL());
432	>
433	>	Runnable r = new CheckedRunnable() {
434	>	public void realRun() throws Exception {
435	>	if (System.getSecurityManager() == null)
436	>	return;
437	>	Callable task = Executors.privilegedCallable(new CheckCCL());
438	>	try {
439	>	task.call();
440	>	shouldThrow();
441	>	} catch (AccessControlException success) {}
442	>	}};
443	>
444	>	runWithoutPermissions(r);
445	>
446	>	// It seems rather difficult to test that the
447	>	// AccessControlContext of the privilegedCallable is used
448	>	// instead of its caller.  Below is a failed attempt to do
449	>	// that, which does not work because the AccessController
450	>	// cannot capture the internal state of the current Policy.
451	>	// It would be much more work to differentiate based on,
452	>	// e.g. CodeSource.
453	>
454	>	//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
455	>	//         final Callable[] task = new Callable[1];
456	>
457	>	//         runWithPermissions
458	>	//             (new CheckedRunnable() {
459	>	//                 public void realRun() {
460	>	//                     if (System.getSecurityManager() == null)
461	>	//                         return;
462	>	//                     noprivAcc[0] = AccessController.getContext();
463	>	//                     task[0] = Executors.privilegedCallable(new CheckCCL());
464	>	//                     try {
465	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
466	>	//                                                           public Void run() {
467	>	//                                                               checkCCL();
468	>	//                                                               return null;
469	>	//                                                           }}, noprivAcc[0]);
470	>	//                         shouldThrow();
471	>	//                     } catch (AccessControlException success) {}
472	>	//                 }});
473	>
474	>	//         runWithPermissions
475	>	//             (new CheckedRunnable() {
476	>	//                 public void realRun() throws Exception {
477	>	//                     if (System.getSecurityManager() == null)
478	>	//                         return;
479	>	//                     // Verify that we have an underprivileged ACC
480	>	//                     try {
481	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
482	>	//                                                           public Void run() {
483	>	//                                                               checkCCL();
484	>	//                                                               return null;
485	>	//                                                           }}, noprivAcc[0]);
486	>	//                         shouldThrow();
487	>	//                     } catch (AccessControlException success) {}
488	>
489	>	//                     try {
490	>	//                         task[0].call();
491	>	//                         shouldThrow();
492	>	//                     } catch (AccessControlException success) {}
493	>	//                 }},
494	>	//              new RuntimePermission("getClassLoader"),
495	>	//              new RuntimePermission("setContextClassLoader"));
496		}
497
498	<	private static class StringTask implements Callable<String> {
499	<	public String call() { return TEST_STRING; }
498	>	/**
499	>	* With permissions, calling privilegedCallable succeeds
500	>	*/
501	>	public void testprivilegedCallableWithPrivs() throws Exception {
502	>	Runnable r = new CheckedRunnable() {
503	>	public void realRun() throws Exception {
504	>	Executors.privilegedCallable(new CheckCCL()).call();
505	>	}};
506	>
507	>	runWithPermissions(r,
508	>	new RuntimePermission("getClassLoader"),
509	>	new RuntimePermission("setContextClassLoader"));
510		}
511
512	<	static class DirectExecutor implements Executor {
513	<	public void execute(Runnable r) {
514	<	r.run();
515	<	}
512	>	/**
513	>	* callable(Runnable) returns null when called
514	>	*/
515	>	public void testCallable1() throws Exception {
516	>	Callable c = Executors.callable(new NoOpRunnable());
517	>	assertNull(c.call());
518	>	}
519	>
520	>	/**
521	>	* callable(Runnable, result) returns result when called
522	>	*/
523	>	public void testCallable2() throws Exception {
524	>	Callable c = Executors.callable(new NoOpRunnable(), one);
525	>	assertSame(one, c.call());
526		}
527
528		/**
529	<	* Check that timeouts from execute will time out if they compute
316	<	* too long.
529	>	* callable(PrivilegedAction) returns its result when called
530		*/
531	+	public void testCallable3() throws Exception {
532	+	Callable c = Executors.callable(new PrivilegedAction() {
533	+	public Object run() { return one; }});
534	+	assertSame(one, c.call());
535	+	}
536
537	<	public void testTimedCallable() {
538	<	int N = 10000;
539	<	ExecutorService executor = Executors.newSingleThreadExecutor();
540	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
541	<	try {
542	<	long startTime = System.currentTimeMillis();
543	<
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	<	}
537	>	/**
538	>	* callable(PrivilegedExceptionAction) returns its result when called
539	>	*/
540	>	public void testCallable4() throws Exception {
541	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
542	>	public Object run() { return one; }});
543	>	assertSame(one, c.call());
544		}
545
546	<
547	<	static class TimedCallable<T> implements Callable<T> {
548	<	private final Executor exec;
549	<	private final Callable<T> func;
550	<	private final long msecs;
551	<
552	<	TimedCallable(Executor exec, Callable<T> func, long msecs) {
553	<	this.exec = exec;
554	<	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	<	}
546	>
547	>	/**
548	>	* callable(null Runnable) throws NPE
549	>	*/
550	>	public void testCallableNPE1() {
551	>	try {
552	>	Callable c = Executors.callable((Runnable) null);
553	>	shouldThrow();
554	>	} catch (NullPointerException success) {}
555		}
556
557	+	/**
558	+	* callable(null, result) throws NPE
559	+	*/
560	+	public void testCallableNPE2() {
561	+	try {
562	+	Callable c = Executors.callable((Runnable) null, one);
563	+	shouldThrow();
564	+	} catch (NullPointerException success) {}
565	+	}
566
567	<	private static class Fib implements Callable<BigInteger> {
568	<	private final BigInteger n;
569	<	Fib(long n) {
570	<	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
571	<	this.n = BigInteger.valueOf(n);
572	<	}
573	<	public BigInteger call() {
574	<	BigInteger f1 = BigInteger.ONE;
575	<	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	<	};
567	>	/**
568	>	* callable(null PrivilegedAction) throws NPE
569	>	*/
570	>	public void testCallableNPE3() {
571	>	try {
572	>	Callable c = Executors.callable((PrivilegedAction) null);
573	>	shouldThrow();
574	>	} catch (NullPointerException success) {}
575	>	}
576
577	+	/**
578	+	* callable(null PrivilegedExceptionAction) throws NPE
579	+	*/
580	+	public void testCallableNPE4() {
581	+	try {
582	+	Callable c = Executors.callable((PrivilegedExceptionAction) null);
583	+	shouldThrow();
584	+	} catch (NullPointerException success) {}
585	+	}
586
587
588		}

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