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

Comparing jsr166/src/test/tck/ExecutorsTest.java (file contents):
Revision 1.1 by dl, Sun Aug 31 19:24:55 2003 UTC vs.
Revision 1.28 by jsr166, Wed Dec 2 19:17:01 2009 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/licenses/publicdomain
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9
10		import junit.framework.*;
11		import java.util.*;
12		import java.util.concurrent.*;
13	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
14	+	import java.math.BigInteger;
15	+	import java.security.*;
16
17	<	public class ExecutorsTest extends TestCase{
14	<
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		}
18	–
19	–
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){
33	<	fail("unexpected exception");
34	<	}
35	<	}
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		}
37	–
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
54	<	*  RejectedExecutionException Attempting to execute a runnable on
55	<	*  a full ThreadPool will cause such an exception here, up to 5
56	<	*  runnables are attempted on a pool capable on handling one
57	<	*  until it throws an exception
59	>	* A new SingleThreadExecutor can execute runnables
60		*/
61	<	public void testExecute1(){
62	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
63	<	try{
64	<
65	<	for(int i = 0; i < 5; ++i){
66	<	Executors.execute(p, new SleepRun(), Boolean.TRUE);
65	<	}
66	<	fail("should throw");
67	<	} catch(RejectedExecutionException success){}
68	<	p.shutdownNow();
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));
80	<	try{
81	<	for(int i = 0; i < 5; ++i) {
82	<	Executors.execute(p, new SleepCall());
83	<	}
84	<	fail("should throw");
85	<	}catch(RejectedExecutionException e){}
86	<	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(){
101	<	public void run(){
102	<	try{
103	<	Thread.sleep(MEDIUM_DELAY_MS);
104	<	fail("should throw");
105	<	}catch(InterruptedException e){
106	<	}
107	<	}
108	<	});
109	<	} catch(InterruptedException success){
110	<	} catch(Exception e) {
111	<	fail("unexpected exception");
112	<	}
113	<
114	<	}
115	<	});
116	<	try{
117	<	t.start();
118	<	Thread.sleep(SHORT_DELAY_MS);
119	<	t.interrupt();
120	<	}catch(Exception e){
121	<	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		}
123	–	p.shutdownNow();
102		}
103
104	+
105		/**
106	<	*  Test to verify invoke(Executor, Runnable) will throw
128	<	*  ExecutionException An ExecutionException occurs when the
129	<	*  underlying Runnable throws an exception, here the
130	<	*  DivideByZeroException will cause an ExecutionException
106	>	* A new newFixedThreadPool can execute runnables
107		*/
108	<	public void testInvoke3(){
109	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
110	<	try{
111	<	Runnable r = new Runnable(){
112	<	public void run(){
113	<	int i = 5/0;
138	<	}
139	<	};
140	<
141	<	for(int i =0; i < 5; i++){
142	<	Executors.invoke(p,r);
143	<	}
144	<
145	<	fail("should throw");
146	<	} catch(ExecutionException success){
147	<	} catch(Exception e){
148	<	fail("should throw EE");
149	<	}
150	<	p.shutdownNow();
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
139	<	*  InterruptedException A single use of invoke starts that will
140	<	*  wait long enough for the invoking thread to be interrupted
141	<	*/
142	<	public void testInvoke5(){
143	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
144	<
145	<	final Callable c = new Callable(){
164	<	public Object call(){
165	<	try{
166	<	Executors.invoke(p, new SleepCall());
167	<	fail("should throw");
168	<	}catch(InterruptedException e){}
169	<	catch(RejectedExecutionException e2){}
170	<	catch(ExecutionException e3){}
171	<	return Boolean.TRUE;
172	<	}
173	<	};
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	<	Thread t = new Thread(new Runnable(){
150	<	public void run(){
151	<	try{
152	<	c.call();
153	<	}catch(Exception e){}
154	<	}
155	<	});
156	<	try{
185	<	t.start();
186	<	Thread.sleep(SHORT_DELAY_MS);
187	<	t.interrupt();
188	<	t.join();
189	<	}catch(InterruptedException e){
190	<	fail("unexpected exception");
191	<	}
192	<
193	<	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
198	<	*  An ExecutionException occurs when the underlying Runnable throws
199	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
160	>	* unconfigurableExecutorService(null) throws NPE
161		*/
162	<	public void testInvoke6(){
163	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
164	<
165	<	try{
166	<	Callable c = new Callable(){
206	<	public Object call(){
207	<	int i = 5/0;
208	<	return Boolean.TRUE;
209	<	}
210	<	};
211	<
212	<	for(int i =0; i < 5; i++){
213	<	Executors.invoke(p,c);
214	<	}
215	<
216	<	fail("should throw");
217	<	}catch(RejectedExecutionException e){}
218	<	catch(InterruptedException e2){}
219	<	catch(ExecutionException e3){}
220	<	p.shutdownNow();
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
228	–	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	>	/**
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	>	/**
209	>	* an unconfigurable newScheduledThreadPool successfully runs delayed task
210	>	*/
211	>	public void testunconfigurableScheduledExecutorService() throws Exception {
212	>	TrackedCallable callable = new TrackedCallable();
213	>	ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
214	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
215	>	assertFalse(callable.done);
216	>	Thread.sleep(MEDIUM_DELAY_MS);
217	>	assertTrue(callable.done);
218	>	assertEquals(Boolean.TRUE, f.get());
219	>	joinPool(p1);
220	>	}
221
222	<	assertTrue("task should be complete", task.isCompleted());
223	<	assertSame("should return test string", TEST_STRING, result);
222	>	/**
223	>	*  Future.get on submitted tasks will time out if they compute too long.
224	>	*/
225	>	public void testTimedCallable() throws Exception {
226	>	final Runnable sleeper =
227	>	new RunnableShouldThrow(InterruptedException.class) {
228	>	public void realRun() throws InterruptedException {
229	>	Thread.sleep(LONG_DELAY_MS);
230	>	}};
231	>	for (ExecutorService executor :
232	>	new ExecutorService[] {
233	>	Executors.newSingleThreadExecutor(),
234	>	Executors.newCachedThreadPool(),
235	>	Executors.newFixedThreadPool(2),
236	>	Executors.newScheduledThreadPool(2),
237	>	}) {
238	>	try {
239	>	Future future = executor.submit(sleeper);
240	>	try {
241	>	future.get(SHORT_DELAY_MS, MILLISECONDS);
242	>	shouldThrow();
243	>	} catch (TimeoutException success) {
244	>	} finally {
245	>	future.cancel(true);
246	>	}
247	>	}
248	>	finally {
249	>	joinPool(executor);
250	>	}
251		}
252	<	catch (ExecutionException ex) {
253	<	fail("Unexpected exception");
252	>	}
253	>
254	>
255	>	/**
256	>	* ThreadPoolExecutor using defaultThreadFactory has
257	>	* specified group, priority, daemon status, and name
258	>	*/
259	>	public void testDefaultThreadFactory() throws Exception {
260	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
261	>	Runnable r = new Runnable() {
262	>	public void run() {
263	>	try {
264	>	Thread current = Thread.currentThread();
265	>	threadAssertTrue(!current.isDaemon());
266	>	threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
267	>	ThreadGroup g = current.getThreadGroup();
268	>	SecurityManager s = System.getSecurityManager();
269	>	if (s != null)
270	>	threadAssertTrue(g == s.getThreadGroup());
271	>	else
272	>	threadAssertTrue(g == egroup);
273	>	String name = current.getName();
274	>	threadAssertTrue(name.endsWith("thread-1"));
275	>	} catch (SecurityException ok) {
276	>	// Also pass if not allowed to change setting
277	>	}
278	>	}
279	>	};
280	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
281	>
282	>	e.execute(r);
283	>	try {
284	>	e.shutdown();
285	>	} catch (SecurityException ok) {
286		}
287	<	catch (InterruptedException ex) {
288	<	fail("Unexpected exception");
287	>
288	>	try {
289	>	Thread.sleep(SHORT_DELAY_MS);
290	>	} finally {
291	>	joinPool(e);
292		}
293		}
294
295	<	public void testInvokeRunnable () {
295	>	/**
296	>	* ThreadPoolExecutor using privilegedThreadFactory has
297	>	* specified group, priority, daemon status, name,
298	>	* access control context and context class loader
299	>	*/
300	>	public void testPrivilegedThreadFactory() throws Exception {
301	>	Policy savedPolicy = null;
302		try {
303	<	Executor e = new DirectExecutor();
304	<	Task task = new Task();
303	>	savedPolicy = Policy.getPolicy();
304	>	AdjustablePolicy policy = new AdjustablePolicy();
305	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
306	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
307	>	Policy.setPolicy(policy);
308	>	} catch (AccessControlException ok) {
309	>	return;
310	>	}
311	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
312	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
313	>	final AccessControlContext thisacc = AccessController.getContext();
314	>	Runnable r = new Runnable() {
315	>	public void run() {
316	>	try {
317	>	Thread current = Thread.currentThread();
318	>	threadAssertTrue(!current.isDaemon());
319	>	threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
320	>	ThreadGroup g = current.getThreadGroup();
321	>	SecurityManager s = System.getSecurityManager();
322	>	if (s != null)
323	>	threadAssertTrue(g == s.getThreadGroup());
324	>	else
325	>	threadAssertTrue(g == egroup);
326	>	String name = current.getName();
327	>	threadAssertTrue(name.endsWith("thread-1"));
328	>	threadAssertTrue(thisccl == current.getContextClassLoader());
329	>	threadAssertTrue(thisacc.equals(AccessController.getContext()));
330	>	} catch (SecurityException ok) {
331	>	// Also pass if not allowed to change settings
332	>	}
333	>	}
334	>	};
335	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
336
337	<	assertFalse("task should not be complete", task.isCompleted());
337	>	Policy.setPolicy(savedPolicy);
338	>	e.execute(r);
339	>	try {
340	>	e.shutdown();
341	>	} catch (SecurityException ok) {
342	>	}
343	>	try {
344	>	Thread.sleep(SHORT_DELAY_MS);
345	>	} finally {
346	>	joinPool(e);
347	>	}
348	>	}
349
350	<	Executors.invoke(e, task);
350	>	void checkCCL() {
351	>	SecurityManager sm = System.getSecurityManager();
352	>	if (sm != null) {
353	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
354	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
355	>	}
356	>	}
357
358	<	assertTrue("task should be complete", task.isCompleted());
358	>	class CheckCCL implements Callable<Object> {
359	>	public Object call() {
360	>	checkCCL();
361	>	return null;
362		}
363	<	catch (ExecutionException ex) {
364	<	fail("Unexpected exception");
363	>	}
364	>
365	>
366	>	/**
367	>	* Without class loader permissions, creating
368	>	* privilegedCallableUsingCurrentClassLoader throws ACE
369	>	*/
370	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
371	>	Policy savedPolicy = null;
372	>	try {
373	>	savedPolicy = Policy.getPolicy();
374	>	AdjustablePolicy policy = new AdjustablePolicy();
375	>	Policy.setPolicy(policy);
376	>	} catch (AccessControlException ok) {
377	>	return;
378		}
379	<	catch (InterruptedException ex) {
380	<	fail("Unexpected exception");
379	>
380	>	// Check if program still has too many permissions to run test
381	>	try {
382	>	checkCCL();
383	>	// too many privileges to test; so return
384	>	Policy.setPolicy(savedPolicy);
385	>	return;
386	>	} catch (AccessControlException ok) {
387		}
261	–	}
388
263	–	public void testExecuteCallable () {
389		try {
390	<	Executor e = new DirectExecutor();
391	<	Future<String> future = Executors.execute(e, new StringTask());
392	<	String result = future.get();
390	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
391	>	shouldThrow();
392	>	} catch (AccessControlException success) {
393	>	} finally {
394	>	Policy.setPolicy(savedPolicy);
395	>	}
396	>	}
397
398	<	assertSame("should return test string", TEST_STRING, result);
398	>	/**
399	>	* With class loader permissions, calling
400	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
401	>	*/
402	>	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
403	>	Policy savedPolicy = null;
404	>	try {
405	>	savedPolicy = Policy.getPolicy();
406	>	AdjustablePolicy policy = new AdjustablePolicy();
407	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
408	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
409	>	Policy.setPolicy(policy);
410	>	} catch (AccessControlException ok) {
411	>	return;
412		}
413	<	catch (ExecutionException ex) {
414	<	fail("Unexpected exception");
413	>
414	>	try {
415	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
416	>	task.call();
417		}
418	<	catch (InterruptedException ex) {
419	<	fail("Unexpected exception");
418	>	finally {
419	>	Policy.setPolicy(savedPolicy);
420		}
421		}
422
423	<	public void testInvokeCallable () {
423	>	/**
424	>	* Without permissions, calling privilegedCallable throws ACE
425	>	*/
426	>	public void testprivilegedCallableWithNoPrivs() throws Exception {
427	>	Callable task;
428	>	Policy savedPolicy = null;
429	>	AdjustablePolicy policy = null;
430	>	AccessControlContext noprivAcc = null;
431		try {
432	<	Executor e = new DirectExecutor();
433	<	String result = Executors.invoke(e, new StringTask());
432	>	savedPolicy = Policy.getPolicy();
433	>	policy = new AdjustablePolicy();
434	>	Policy.setPolicy(policy);
435	>	noprivAcc = AccessController.getContext();
436	>	task = Executors.privilegedCallable(new CheckCCL());
437	>	Policy.setPolicy(savedPolicy);
438	>	} catch (AccessControlException ok) {
439	>	return; // program has too few permissions to set up test
440	>	}
441
442	<	assertSame("should return test string", TEST_STRING, result);
442	>	// Make sure that program doesn't have too many permissions
443	>	try {
444	>	AccessController.doPrivileged(new PrivilegedAction() {
445	>	public Object run() {
446	>	checkCCL();
447	>	return null;
448	>	}}, noprivAcc);
449	>	// too many permssions; skip test
450	>	return;
451	>	} catch (AccessControlException ok) {
452		}
453	<	catch (ExecutionException ex) {
454	<	fail("Unexpected exception" );
453	>
454	>	try {
455	>	task.call();
456	>	shouldThrow();
457	>	} catch (AccessControlException success) {}
458	>	}
459	>
460	>	/**
461	>	* With permissions, calling privilegedCallable succeeds
462	>	*/
463	>	public void testprivilegedCallableWithPrivs() throws Exception {
464	>	Policy savedPolicy = null;
465	>	try {
466	>	savedPolicy = Policy.getPolicy();
467	>	AdjustablePolicy policy = new AdjustablePolicy();
468	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
469	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
470	>	Policy.setPolicy(policy);
471	>	} catch (AccessControlException ok) {
472	>	return;
473		}
474	<	catch (InterruptedException ex) {
475	<	fail("Unexpected exception");
474	>
475	>	Callable task = Executors.privilegedCallable(new CheckCCL());
476	>	try {
477	>	task.call();
478	>	} finally {
479	>	Policy.setPolicy(savedPolicy);
480		}
481		}
482
483	<	private static final String TEST_STRING = "a test string";
483	>	/**
484	>	* callable(Runnable) returns null when called
485	>	*/
486	>	public void testCallable1() throws Exception {
487	>	Callable c = Executors.callable(new NoOpRunnable());
488	>	assertNull(c.call());
489	>	}
490
491	<	private static class Task implements Runnable {
492	<	public void run() { completed = true; }
493	<	public boolean isCompleted() { return completed; }
494	<	public void reset() { completed = false; }
495	<	private boolean completed = false;
491	>	/**
492	>	* callable(Runnable, result) returns result when called
493	>	*/
494	>	public void testCallable2() throws Exception {
495	>	Callable c = Executors.callable(new NoOpRunnable(), one);
496	>	assertSame(one, c.call());
497		}
498
499	<	private static class StringTask implements Callable<String> {
500	<	public String call() { return TEST_STRING; }
499	>	/**
500	>	* callable(PrivilegedAction) returns its result when called
501	>	*/
502	>	public void testCallable3() throws Exception {
503	>	Callable c = Executors.callable(new PrivilegedAction() {
504	>	public Object run() { return one; }});
505	>	assertSame(one, c.call());
506		}
507
508	<	static class DirectExecutor implements Executor {
509	<	public void execute(Runnable r) {
510	<	r.run();
511	<	}
508	>	/**
509	>	* callable(PrivilegedExceptionAction) returns its result when called
510	>	*/
511	>	public void testCallable4() throws Exception {
512	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
513	>	public Object run() { return one; }});
514	>	assertSame(one, c.call());
515	>	}
516	>
517	>
518	>	/**
519	>	* callable(null Runnable) throws NPE
520	>	*/
521	>	public void testCallableNPE1() {
522	>	try {
523	>	Callable c = Executors.callable((Runnable) null);
524	>	shouldThrow();
525	>	} catch (NullPointerException success) {}
526	>	}
527	>
528	>	/**
529	>	* callable(null, result) throws NPE
530	>	*/
531	>	public void testCallableNPE2() {
532	>	try {
533	>	Callable c = Executors.callable((Runnable) null, one);
534	>	shouldThrow();
535	>	} catch (NullPointerException success) {}
536	>	}
537	>
538	>	/**
539	>	* callable(null PrivilegedAction) throws NPE
540	>	*/
541	>	public void testCallableNPE3() {
542	>	try {
543	>	Callable c = Executors.callable((PrivilegedAction) null);
544	>	shouldThrow();
545	>	} catch (NullPointerException success) {}
546	>	}
547	>
548	>	/**
549	>	* callable(null PrivilegedExceptionAction) throws NPE
550	>	*/
551	>	public void testCallableNPE4() {
552	>	try {
553	>	Callable c = Executors.callable((PrivilegedExceptionAction) null);
554	>	shouldThrow();
555	>	} catch (NullPointerException success) {}
556		}
557
558

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