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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 1.13 by dl, Mon Jan 19 15:49:02 2004 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 java.math.BigInteger;
14	+	import java.security.*;
15
16	<	public class ExecutorsTest extends TestCase{
14	<
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		}
18	–
19	–
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){
33	<	fail("unexpected exception");
24	>	static class TimedCallable<T> implements Callable<T> {
25	>	private final ExecutorService exec;
26	>	private final Callable<T> func;
27	>	private final long msecs;
28	>
29	>	TimedCallable(ExecutorService exec, Callable<T> func, long msecs) {
30	>	this.exec = exec;
31	>	this.func = func;
32	>	this.msecs = msecs;
33	>	}
34	>
35	>	public T call() throws Exception {
36	>	Future<T> ftask = exec.submit(func);
37	>	try {
38	>	return ftask.get(msecs, TimeUnit.MILLISECONDS);
39	>	} finally {
40	>	ftask.cancel(true);
41		}
42		}
43		}
37	–
44
45	<	class SleepCall implements Callable {
46	<	public Object call(){
47	<	try{
48	<	Thread.sleep(MEDIUM_DELAY_MS);
49	<	}catch(InterruptedException e){
50	<	fail("unexpected exception");
45	>
46	>	private static class Fib implements Callable<BigInteger> {
47	>	private final BigInteger n;
48	>	Fib(long n) {
49	>	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
50	>	this.n = BigInteger.valueOf(n);
51	>	}
52	>	public BigInteger call() {
53	>	BigInteger f1 = BigInteger.ONE;
54	>	BigInteger f2 = f1;
55	>	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
56	>	BigInteger t = f1.add(f2);
57	>	f1 = f2;
58	>	f2 = t;
59		}
60	<	return Boolean.TRUE;
60	>	return f1;
61		}
62	<	}
62	>	};
63
64	+	/**
65	+	* A newCachedThreadPool can execute runnables
66	+	*/
67	+	public void testNewCachedThreadPool1() {
68	+	ExecutorService e = Executors.newCachedThreadPool();
69	+	e.execute(new NoOpRunnable());
70	+	e.execute(new NoOpRunnable());
71	+	e.execute(new NoOpRunnable());
72	+	e.shutdown();
73	+	}
74
75	+	/**
76	+	* A newCachedThreadPool with given ThreadFactory can execute runnables
77	+	*/
78	+	public void testNewCachedThreadPool2() {
79	+	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
80	+	e.execute(new NoOpRunnable());
81	+	e.execute(new NoOpRunnable());
82	+	e.execute(new NoOpRunnable());
83	+	e.shutdown();
84	+	}
85
86		/**
87	<	*  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
87	>	* A newCachedThreadPool with null ThreadFactory throws NPE
88		*/
89	<	public void testExecute1(){
90	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
91	<	try{
92	<
93	<	for(int i = 0; i < 5; ++i){
94	<	Executors.execute(p, new SleepRun(), Boolean.TRUE);
95	<	}
66	<	fail("should throw");
67	<	} catch(RejectedExecutionException success){}
68	<	p.shutdownNow();
89	>	public void testNewCachedThreadPool3() {
90	>	try {
91	>	ExecutorService e = Executors.newCachedThreadPool(null);
92	>	shouldThrow();
93	>	}
94	>	catch(NullPointerException success) {
95	>	}
96		}
97
98	+
99		/**
100	<	*  Test to verify execute(Executor, Callable) will throw
101	<	*  RejectedExecutionException Attempting to execute a callable on
102	<	*  a full ThreadPool will cause such an exception here, up to 5
103	<	*  runnables are attempted on a pool capable on handling one
104	<	*  until it throws an exception
105	<	*/
106	<	public void testExecute2(){
107	<	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();
100	>	* A new SingleThreadExecutor can execute runnables
101	>	*/
102	>	public void testNewSingleThreadExecutor1() {
103	>	ExecutorService e = Executors.newSingleThreadExecutor();
104	>	e.execute(new NoOpRunnable());
105	>	e.execute(new NoOpRunnable());
106	>	e.execute(new NoOpRunnable());
107	>	e.shutdown();
108		}
109
110	+	/**
111	+	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
112	+	*/
113	+	public void testNewSingleThreadExecutor2() {
114	+	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
115	+	e.execute(new NoOpRunnable());
116	+	e.execute(new NoOpRunnable());
117	+	e.execute(new NoOpRunnable());
118	+	e.shutdown();
119	+	}
120
121		/**
122	<	*  Test to verify invoke(Executor, Runnable) throws InterruptedException
123	<	*  A single use of invoke starts that will wait long enough
124	<	*  for the invoking thread to be interrupted
125	<	*/
126	<	public void testInvoke2(){
127	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
128	<	Thread t = new Thread(new Runnable() {
129	<	public void run(){
130	<	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");
122	<	}
123	<	p.shutdownNow();
122	>	* A new SingleThreadExecutor with null ThreadFactory throws NPE
123	>	*/
124	>	public void testNewSingleThreadExecutor3() {
125	>	try {
126	>	ExecutorService e = Executors.newSingleThreadExecutor(null);
127	>	shouldThrow();
128	>	}
129	>	catch(NullPointerException success) {
130	>	}
131		}
132
133		/**
134	<	*  Test to verify invoke(Executor, Runnable) will throw
135	<	*  ExecutionException An ExecutionException occurs when the
136	<	*  underlying Runnable throws an exception, here the
137	<	*  DivideByZeroException will cause an ExecutionException
138	<	*/
139	<	public void testInvoke3(){
140	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
141	<	try{
142	<	Runnable r = new Runnable(){
136	<	public void run(){
137	<	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");
134	>	* A new SingleThreadExecutor cannot be casted to concrete implementation
135	>	*/
136	>	public void testCastNewSingleThreadExecutor() {
137	>	ExecutorService e = Executors.newSingleThreadExecutor();
138	>	try {
139	>	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
140	>	} catch (ClassCastException success) {
141	>	} finally {
142	>	joinPool(e);
143		}
150	–	p.shutdownNow();
144		}
145
146
147	+	/**
148	+	* A new newFixedThreadPool can execute runnables
149	+	*/
150	+	public void testNewFixedThreadPool1() {
151	+	ExecutorService e = Executors.newFixedThreadPool(2);
152	+	e.execute(new NoOpRunnable());
153	+	e.execute(new NoOpRunnable());
154	+	e.execute(new NoOpRunnable());
155	+	e.shutdown();
156	+	}
157
158		/**
159	<	*  Test to verify invoke(Executor, Callable) throws
157	<	*  InterruptedException A single use of invoke starts that will
158	<	*  wait long enough for the invoking thread to be interrupted
159	>	* A new newFixedThreadPool with given ThreadFactory can execute runnables
160		*/
161	<	public void testInvoke5(){
162	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
163	<
164	<	final Callable c = new Callable(){
165	<	public Object call(){
166	<	try{
167	<	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	<	};
161	>	public void testNewFixedThreadPool2() {
162	>	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
163	>	e.execute(new NoOpRunnable());
164	>	e.execute(new NoOpRunnable());
165	>	e.execute(new NoOpRunnable());
166	>	e.shutdown();
167	>	}
168
169	+	/**
170	+	* A new newFixedThreadPool with null ThreadFactory throws NPE
171	+	*/
172	+	public void testNewFixedThreadPool3() {
173	+	try {
174	+	ExecutorService e = Executors.newFixedThreadPool(2, null);
175	+	shouldThrow();
176	+	}
177	+	catch(NullPointerException success) {
178	+	}
179	+	}
180
181	<
182	<	Thread t = new Thread(new Runnable(){
183	<	public void run(){
184	<	try{
185	<	c.call();
186	<	}catch(Exception e){}
187	<	}
188	<	});
189	<	try{
185	<	t.start();
186	<	Thread.sleep(SHORT_DELAY_MS);
187	<	t.interrupt();
188	<	t.join();
189	<	}catch(InterruptedException e){
190	<	fail("unexpected exception");
181	>	/**
182	>	* A new newFixedThreadPool with 0 threads throws IAE
183	>	*/
184	>	public void testNewFixedThreadPool4() {
185	>	try {
186	>	ExecutorService e = Executors.newFixedThreadPool(0);
187	>	shouldThrow();
188	>	}
189	>	catch(IllegalArgumentException success) {
190		}
192	–
193	–	p.shutdownNow();
191		}
192
193	+
194		/**
195	<	*  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
195	>	* An unconfigurable newFixedThreadPool can execute runnables
196		*/
197	<	public void testInvoke6(){
198	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
197	>	public void testunconfigurableExecutorService() {
198	>	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
199	>	e.execute(new NoOpRunnable());
200	>	e.execute(new NoOpRunnable());
201	>	e.execute(new NoOpRunnable());
202	>	e.shutdown();
203	>	}
204
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++){
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();
205	>	/**
206	>	* unconfigurableExecutorService(null) throws NPE
207	>	*/
208	>	public void testunconfigurableExecutorServiceNPE() {
209	>	try {
210	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
211	>	}
212	>	catch (NullPointerException success) {
213	>	}
214		}
215
216	<	public void testExecuteRunnable () {
216	>	/**
217	>	* unconfigurableScheduledExecutorService(null) throws NPE
218	>	*/
219	>	public void testunconfigurableScheduledExecutorServiceNPE() {
220		try {
221	<	Executor e = new DirectExecutor();
222	<	Task task = new Task();
221	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
222	>	}
223	>	catch (NullPointerException success) {
224	>	}
225	>	}
226
228	–	assertFalse("task should not be complete", task.isCompleted());
227
228	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
229	<	String result = future.get();
228	>	/**
229	>	* a newSingleThreadScheduledExecutor successfully runs delayed task
230	>	*/
231	>	public void testNewSingleThreadScheduledExecutor() {
232	>	try {
233	>	TrackedCallable callable = new TrackedCallable();
234	>	ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
235	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
236	>	assertFalse(callable.done);
237	>	Thread.sleep(MEDIUM_DELAY_MS);
238	>	assertTrue(callable.done);
239	>	assertEquals(Boolean.TRUE, f.get());
240	>	p1.shutdown();
241	>	joinPool(p1);
242	>	} catch(RejectedExecutionException e){}
243	>	catch(Exception e){
244	>	e.printStackTrace();
245	>	unexpectedException();
246	>	}
247	>	}
248	>
249	>	/**
250	>	* a newScheduledThreadPool successfully runs delayed task
251	>	*/
252	>	public void testnewScheduledThreadPool() {
253	>	try {
254	>	TrackedCallable callable = new TrackedCallable();
255	>	ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
256	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
257	>	assertFalse(callable.done);
258	>	Thread.sleep(MEDIUM_DELAY_MS);
259	>	assertTrue(callable.done);
260	>	assertEquals(Boolean.TRUE, f.get());
261	>	p1.shutdown();
262	>	joinPool(p1);
263	>	} catch(RejectedExecutionException e){}
264	>	catch(Exception e){
265	>	e.printStackTrace();
266	>	unexpectedException();
267	>	}
268	>	}
269
270	<	assertTrue("task should be complete", task.isCompleted());
271	<	assertSame("should return test string", TEST_STRING, result);
270	>	/**
271	>	* an unconfigurable  newScheduledThreadPool successfully runs delayed task
272	>	*/
273	>	public void testunconfigurableScheduledExecutorService() {
274	>	try {
275	>	TrackedCallable callable = new TrackedCallable();
276	>	ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
277	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
278	>	assertFalse(callable.done);
279	>	Thread.sleep(MEDIUM_DELAY_MS);
280	>	assertTrue(callable.done);
281	>	assertEquals(Boolean.TRUE, f.get());
282	>	p1.shutdown();
283	>	joinPool(p1);
284	>	} catch(RejectedExecutionException e){}
285	>	catch(Exception e){
286	>	e.printStackTrace();
287	>	unexpectedException();
288		}
289	<	catch (ExecutionException ex) {
290	<	fail("Unexpected exception");
289	>	}
290	>
291	>	/**
292	>	*  timeouts from execute will time out if they compute too long.
293	>	*/
294	>	public void testTimedCallable() {
295	>	int N = 10000;
296	>	ExecutorService executor = Executors.newSingleThreadExecutor();
297	>	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
298	>	try {
299	>	long startTime = System.currentTimeMillis();
300	>
301	>	long i = 0;
302	>	while (tasks.size() < N) {
303	>	tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
304	>	i += 10;
305	>	}
306	>
307	>	int iters = 0;
308	>	BigInteger sum = BigInteger.ZERO;
309	>	for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
310	>	try {
311	>	++iters;
312	>	sum = sum.add(it.next().call());
313	>	}
314	>	catch (TimeoutException success) {
315	>	assertTrue(iters > 0);
316	>	return;
317	>	}
318	>	catch (Exception e) {
319	>	unexpectedException();
320	>	}
321	>	}
322	>	// if by chance we didn't ever time out, total time must be small
323	>	long elapsed = System.currentTimeMillis() - startTime;
324	>	assertTrue(elapsed < N);
325		}
326	<	catch (InterruptedException ex) {
327	<	fail("Unexpected exception");
326	>	finally {
327	>	joinPool(executor);
328		}
329		}
330
331	<	public void testInvokeRunnable () {
331	>
332	>	/**
333	>	* ThreadPoolExecutor using defaultThreadFactory has
334	>	* specified group, priority, daemon status, and name
335	>	*/
336	>	public void testDefaultThreadFactory() {
337	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
338	>	Runnable r = new Runnable() {
339	>	public void run() {
340	>	try {
341	>	Thread current = Thread.currentThread();
342	>	threadAssertTrue(!current.isDaemon());
343	>	threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
344	>	ThreadGroup g = current.getThreadGroup();
345	>	SecurityManager s = System.getSecurityManager();
346	>	if (s != null)
347	>	threadAssertTrue(g == s.getThreadGroup());
348	>	else
349	>	threadAssertTrue(g == egroup);
350	>	String name = current.getName();
351	>	threadAssertTrue(name.endsWith("thread-1"));
352	>	} catch (SecurityException ok) {
353	>	// Also pass if not allowed to change setting
354	>	}
355	>	}
356	>	};
357	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
358	>
359	>	e.execute(r);
360	>	e.shutdown();
361		try {
362	<	Executor e = new DirectExecutor();
363	<	Task task = new Task();
362	>	Thread.sleep(SHORT_DELAY_MS);
363	>	} catch (Exception eX) {
364	>	unexpectedException();
365	>	} finally {
366	>	joinPool(e);
367	>	}
368	>	}
369
370	<	assertFalse("task should not be complete", task.isCompleted());
370	>	/**
371	>	* ThreadPoolExecutor using privilegedThreadFactory has
372	>	* specified group, priority, daemon status, name,
373	>	* access control context and context class loader
374	>	*/
375	>	public void testPrivilegedThreadFactory() {
376	>	Policy savedPolicy = Policy.getPolicy();
377	>	AdjustablePolicy policy = new AdjustablePolicy();
378	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
379	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
380	>	Policy.setPolicy(policy);
381	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
382	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
383	>	final AccessControlContext thisacc = AccessController.getContext();
384	>	Runnable r = new Runnable() {
385	>	public void run() {
386	>	try {
387	>	Thread current = Thread.currentThread();
388	>	threadAssertTrue(!current.isDaemon());
389	>	threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
390	>	ThreadGroup g = current.getThreadGroup();
391	>	SecurityManager s = System.getSecurityManager();
392	>	if (s != null)
393	>	threadAssertTrue(g == s.getThreadGroup());
394	>	else
395	>	threadAssertTrue(g == egroup);
396	>	String name = current.getName();
397	>	threadAssertTrue(name.endsWith("thread-1"));
398	>	threadAssertTrue(thisccl == current.getContextClassLoader());
399	>	threadAssertTrue(thisacc.equals(AccessController.getContext()));
400	>	} catch(SecurityException ok) {
401	>	// Also pass if not allowed to change settings
402	>	}
403	>	};
404	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
405	>
406	>	Policy.setPolicy(savedPolicy);
407	>	e.execute(r);
408	>	e.shutdown();
409	>	try {
410	>	Thread.sleep(SHORT_DELAY_MS);
411	>	} catch (Exception ex) {
412	>	unexpectedException();
413	>	} finally {
414	>	joinPool(e);
415	>	}
416
417	<	Executors.invoke(e, task);
417	>	}
418
419	<	assertTrue("task should be complete", task.isCompleted());
420	<	}
421	<	catch (ExecutionException ex) {
422	<	fail("Unexpected exception");
423	<	}
258	<	catch (InterruptedException ex) {
259	<	fail("Unexpected exception");
419	>	static class CheckCCL implements Callable<Object> {
420	>	public Object call() {
421	>	AccessControlContext acc = AccessController.getContext();
422	>	acc.checkPermission(new RuntimePermission("getContextClassLoader"));
423	>	return null;
424		}
425		}
426
427	<	public void testExecuteCallable () {
427	>
428	>	/**
429	>	* Without class loader permissions, creating
430	>	* privilegedCallableUsingCurrentClassLoader throws ACE
431	>	*/
432	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
433	>	Policy savedPolicy = Policy.getPolicy();
434	>	AdjustablePolicy policy = new AdjustablePolicy();
435	>	Policy.setPolicy(policy);
436		try {
437	<	Executor e = new DirectExecutor();
438	<	Future<String> future = Executors.execute(e, new StringTask());
439	<	String result = future.get();
437	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
438	>	shouldThrow();
439	>	} catch(AccessControlException success) {
440	>	} catch(Exception ex) {
441	>	unexpectedException();
442	>	}
443	>	finally {
444	>	Policy.setPolicy(savedPolicy);
445	>	}
446	>	}
447
448	<	assertSame("should return test string", TEST_STRING, result);
448	>	/**
449	>	* Without class loader permissions, calling
450	>	* privilegedCallableUsingCurrentClassLoader throws ACE
451	>	*/
452	>	public void testprivilegedCallableUsingCCLWithPrivs() {
453	>	Policy savedPolicy = Policy.getPolicy();
454	>	AdjustablePolicy policy = new AdjustablePolicy();
455	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
456	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
457	>	Policy.setPolicy(policy);
458	>	try {
459	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
460	>	task.call();
461	>	} catch(Exception ex) {
462	>	unexpectedException();
463	>	}
464	>	finally {
465	>	Policy.setPolicy(savedPolicy);
466		}
467	<	catch (ExecutionException ex) {
468	<	fail("Unexpected exception");
467	>	}
468	>
469	>	/**
470	>	* Without permissions, calling privilegedCallable throws ACE
471	>	*/
472	>	public void testprivilegedCallableWithNoPrivs() {
473	>	Policy savedPolicy = Policy.getPolicy();
474	>	AdjustablePolicy policy = new AdjustablePolicy();
475	>	Policy.setPolicy(policy);
476	>	Callable task = Executors.privilegedCallable(new CheckCCL());
477	>	Policy.setPolicy(savedPolicy);
478	>	try {
479	>	task.call();
480	>	shouldThrow();
481	>	} catch(AccessControlException success) {
482	>	} catch(Exception ex) {
483	>	unexpectedException();
484	>	} finally {
485		}
486	<	catch (InterruptedException ex) {
487	<	fail("Unexpected exception");
486	>	}
487	>
488	>	/**
489	>	* With permissions, calling privilegedCallable succeeds
490	>	*/
491	>	public void testprivilegedCallableWithPrivs() {
492	>	Policy savedPolicy = Policy.getPolicy();
493	>	AdjustablePolicy policy = new AdjustablePolicy();
494	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
495	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
496	>	Policy.setPolicy(policy);
497	>	Callable task = Executors.privilegedCallable(new CheckCCL());
498	>	try {
499	>	task.call();
500	>	} catch(Exception ex) {
501	>	unexpectedException();
502	>	} finally {
503	>	Policy.setPolicy(savedPolicy);
504		}
505		}
506
507	<	public void testInvokeCallable () {
507	>	/**
508	>	* callable(Runnable) returns null when called
509	>	*/
510	>	public void testCallable1() {
511		try {
512	<	Executor e = new DirectExecutor();
513	<	String result = Executors.invoke(e, new StringTask());
512	>	Callable c = Executors.callable(new NoOpRunnable());
513	>	assertNull(c.call());
514	>	} catch(Exception ex) {
515	>	unexpectedException();
516	>	}
517	>
518	>	}
519
520	<	assertSame("should return test string", TEST_STRING, result);
520	>	/**
521	>	* callable(Runnable, result) returns result when called
522	>	*/
523	>	public void testCallable2() {
524	>	try {
525	>	Callable c = Executors.callable(new NoOpRunnable(), one);
526	>	assertEquals(one, c.call());
527	>	} catch(Exception ex) {
528	>	unexpectedException();
529		}
530	<	catch (ExecutionException ex) {
531	<	fail("Unexpected exception" );
530	>	}
531	>
532	>	/**
533	>	* callable(PrivilegedAction) returns its result when called
534	>	*/
535	>	public void testCallable3() {
536	>	try {
537	>	Callable c = Executors.callable(new PrivilegedAction() {
538	>	public Object run() { return one; }});
539	>	assertEquals(one, c.call());
540	>	} catch(Exception ex) {
541	>	unexpectedException();
542		}
543	<	catch (InterruptedException ex) {
544	<	fail("Unexpected exception");
543	>	}
544	>
545	>	/**
546	>	* callable(PrivilegedExceptionAction) returns its result when called
547	>	*/
548	>	public void testCallable4() {
549	>	try {
550	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
551	>	public Object run() { return one; }});
552	>	assertEquals(one, c.call());
553	>	} catch(Exception ex) {
554	>	unexpectedException();
555		}
556		}
557
294	–	private static final String TEST_STRING = "a test string";
558
559	<	private static class Task implements Runnable {
560	<	public void run() { completed = true; }
561	<	public boolean isCompleted() { return completed; }
562	<	public void reset() { completed = false; }
563	<	private boolean completed = false;
559	>	/**
560	>	* callable(null Runnable) throws NPE
561	>	*/
562	>	public void testCallableNPE1() {
563	>	try {
564	>	Runnable r = null;
565	>	Callable c = Executors.callable(r);
566	>	} catch (NullPointerException success) {
567	>	}
568	>	}
569	>
570	>	/**
571	>	* callable(null, result) throws NPE
572	>	*/
573	>	public void testCallableNPE2() {
574	>	try {
575	>	Runnable r = null;
576	>	Callable c = Executors.callable(r, one);
577	>	} catch (NullPointerException success) {
578	>	}
579		}
580
581	<	private static class StringTask implements Callable<String> {
582	<	public String call() { return TEST_STRING; }
581	>	/**
582	>	* callable(null PrivilegedAction) throws NPE
583	>	*/
584	>	public void testCallableNPE3() {
585	>	try {
586	>	PrivilegedAction r = null;
587	>	Callable c = Executors.callable(r);
588	>	} catch (NullPointerException success) {
589	>	}
590		}
591
592	<	static class DirectExecutor implements Executor {
593	<	public void execute(Runnable r) {
594	<	r.run();
592	>	/**
593	>	* callable(null PrivilegedExceptionAction) throws NPE
594	>	*/
595	>	public void testCallableNPE4() {
596	>	try {
597	>	PrivilegedExceptionAction r = null;
598	>	Callable c = Executors.callable(r);
599	>	} catch (NullPointerException success) {
600		}
601		}
602

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