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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 1.26 by jsr166, Sat Nov 21 02:33:20 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){
34	<	fail("unexpected exception");
25	>	static class TimedCallable<T> implements Callable<T> {
26	>	private final ExecutorService exec;
27	>	private final Callable<T> func;
28	>	private final long msecs;
29	>
30	>	TimedCallable(ExecutorService exec, Callable<T> func, long msecs) {
31	>	this.exec = exec;
32	>	this.func = func;
33	>	this.msecs = msecs;
34	>	}
35	>
36	>	public T call() throws Exception {
37	>	Future<T> ftask = exec.submit(func);
38	>	try {
39	>	return ftask.get(msecs, MILLISECONDS);
40	>	} finally {
41	>	ftask.cancel(true);
42		}
43		}
44		}
37	–
45
46	<	class SleepCall implements Callable {
47	<	public Object call(){
48	<	try{
49	<	Thread.sleep(MEDIUM_DELAY_MS);
50	<	}catch(InterruptedException e){
51	<	fail("unexpected exception");
46	>
47	>	private static class Fib implements Callable<BigInteger> {
48	>	private final BigInteger n;
49	>	Fib(long n) {
50	>	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
51	>	this.n = BigInteger.valueOf(n);
52	>	}
53	>	public BigInteger call() {
54	>	BigInteger f1 = BigInteger.ONE;
55	>	BigInteger f2 = f1;
56	>	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
57	>	BigInteger t = f1.add(f2);
58	>	f1 = f2;
59	>	f2 = t;
60		}
61	<	return Boolean.TRUE;
61	>	return f1;
62		}
63	+	};
64	+
65	+	/**
66	+	* A newCachedThreadPool can execute runnables
67	+	*/
68	+	public void testNewCachedThreadPool1() {
69	+	ExecutorService e = Executors.newCachedThreadPool();
70	+	e.execute(new NoOpRunnable());
71	+	e.execute(new NoOpRunnable());
72	+	e.execute(new NoOpRunnable());
73	+	joinPool(e);
74		}
75
76	+	/**
77	+	* A newCachedThreadPool with given ThreadFactory can execute runnables
78	+	*/
79	+	public void testNewCachedThreadPool2() {
80	+	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
81	+	e.execute(new NoOpRunnable());
82	+	e.execute(new NoOpRunnable());
83	+	e.execute(new NoOpRunnable());
84	+	joinPool(e);
85	+	}
86	+
87	+	/**
88	+	* A newCachedThreadPool with null ThreadFactory throws NPE
89	+	*/
90	+	public void testNewCachedThreadPool3() {
91	+	try {
92	+	ExecutorService e = Executors.newCachedThreadPool(null);
93	+	shouldThrow();
94	+	} catch (NullPointerException success) {}
95	+	}
96
97
98		/**
99	<	*  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
99	>	* A new SingleThreadExecutor can execute runnables
100		*/
101	<	public void testExecute1(){
102	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
103	<	try{
104	<
105	<	for(int i = 0; i < 5; ++i){
106	<	Executors.execute(p, new SleepRun(), Boolean.TRUE);
65	<	}
66	<	fail("should throw");
67	<	} catch(RejectedExecutionException success){}
68	<	p.shutdownNow();
101	>	public void testNewSingleThreadExecutor1() {
102	>	ExecutorService e = Executors.newSingleThreadExecutor();
103	>	e.execute(new NoOpRunnable());
104	>	e.execute(new NoOpRunnable());
105	>	e.execute(new NoOpRunnable());
106	>	joinPool(e);
107		}
108
109		/**
110	<	*  Test to verify execute(Executor, Callable) will throw
111	<	*  RejectedExecutionException Attempting to execute a callable on
112	<	*  a full ThreadPool will cause such an exception here, up to 5
113	<	*  runnables are attempted on a pool capable on handling one
114	<	*  until it throws an exception
115	<	*/
116	<	public void testExecute2(){
117	<	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();
110	>	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
111	>	*/
112	>	public void testNewSingleThreadExecutor2() {
113	>	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
114	>	e.execute(new NoOpRunnable());
115	>	e.execute(new NoOpRunnable());
116	>	e.execute(new NoOpRunnable());
117	>	joinPool(e);
118		}
119
120	+	/**
121	+	* A new SingleThreadExecutor with null ThreadFactory throws NPE
122	+	*/
123	+	public void testNewSingleThreadExecutor3() {
124	+	try {
125	+	ExecutorService e = Executors.newSingleThreadExecutor(null);
126	+	shouldThrow();
127	+	} catch (NullPointerException success) {}
128	+	}
129
130		/**
131	<	*  Test to verify invoke(Executor, Runnable) throws InterruptedException
132	<	*  A single use of invoke starts that will wait long enough
133	<	*  for the invoking thread to be interrupted
134	<	*/
135	<	public void testInvoke2(){
136	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
137	<	Thread t = new Thread(new Runnable() {
138	<	public void run(){
139	<	try{
140	<	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");
131	>	* A new SingleThreadExecutor cannot be casted to concrete implementation
132	>	*/
133	>	public void testCastNewSingleThreadExecutor() {
134	>	ExecutorService e = Executors.newSingleThreadExecutor();
135	>	try {
136	>	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
137	>	shouldThrow();
138	>	} catch (ClassCastException success) {
139	>	} finally {
140	>	joinPool(e);
141		}
123	–	p.shutdownNow();
142		}
143
144	+
145		/**
146	<	*  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
146	>	* A new newFixedThreadPool can execute runnables
147		*/
148	<	public void testInvoke3(){
149	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
150	<	try{
151	<	Runnable r = new Runnable(){
152	<	public void run(){
153	<	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();
148	>	public void testNewFixedThreadPool1() {
149	>	ExecutorService e = Executors.newFixedThreadPool(2);
150	>	e.execute(new NoOpRunnable());
151	>	e.execute(new NoOpRunnable());
152	>	e.execute(new NoOpRunnable());
153	>	joinPool(e);
154		}
155
156	+	/**
157	+	* A new newFixedThreadPool with given ThreadFactory can execute runnables
158	+	*/
159	+	public void testNewFixedThreadPool2() {
160	+	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
161	+	e.execute(new NoOpRunnable());
162	+	e.execute(new NoOpRunnable());
163	+	e.execute(new NoOpRunnable());
164	+	joinPool(e);
165	+	}
166
167	+	/**
168	+	* A new newFixedThreadPool with null ThreadFactory throws NPE
169	+	*/
170	+	public void testNewFixedThreadPool3() {
171	+	try {
172	+	ExecutorService e = Executors.newFixedThreadPool(2, null);
173	+	shouldThrow();
174	+	} catch (NullPointerException success) {}
175	+	}
176
177		/**
178	<	*  Test to verify invoke(Executor, Callable) throws
179	<	*  InterruptedException A single use of invoke starts that will
180	<	*  wait long enough for the invoking thread to be interrupted
181	<	*/
182	<	public void testInvoke5(){
183	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
184	<
185	<	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	<	};
178	>	* A new newFixedThreadPool with 0 threads throws IAE
179	>	*/
180	>	public void testNewFixedThreadPool4() {
181	>	try {
182	>	ExecutorService e = Executors.newFixedThreadPool(0);
183	>	shouldThrow();
184	>	} catch (IllegalArgumentException success) {}
185	>	}
186
187
188	<
189	<	Thread t = new Thread(new Runnable(){
190	<	public void run(){
191	<	try{
192	<	c.call();
193	<	}catch(Exception e){}
194	<	}
195	<	});
196	<	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();
188	>	/**
189	>	* An unconfigurable newFixedThreadPool can execute runnables
190	>	*/
191	>	public void testunconfigurableExecutorService() {
192	>	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
193	>	e.execute(new NoOpRunnable());
194	>	e.execute(new NoOpRunnable());
195	>	e.execute(new NoOpRunnable());
196	>	joinPool(e);
197		}
198
199		/**
200	<	*  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
200	>	* unconfigurableExecutorService(null) throws NPE
201		*/
202	<	public void testInvoke6(){
203	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
204	<
205	<	try{
206	<	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();
202	>	public void testunconfigurableExecutorServiceNPE() {
203	>	try {
204	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
205	>	shouldThrow();
206	>	} catch (NullPointerException success) {}
207		}
208
209	<	public void testExecuteRunnable () {
209	>	/**
210	>	* unconfigurableScheduledExecutorService(null) throws NPE
211	>	*/
212	>	public void testunconfigurableScheduledExecutorServiceNPE() {
213		try {
214	<	Executor e = new DirectExecutor();
215	<	Task task = new Task();
214	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
215	>	shouldThrow();
216	>	} catch (NullPointerException success) {}
217	>	}
218	>
219
220	<	assertFalse("task should not be complete", task.isCompleted());
220	>	/**
221	>	* a newSingleThreadScheduledExecutor successfully runs delayed task
222	>	*/
223	>	public void testNewSingleThreadScheduledExecutor() throws Exception {
224	>	TrackedCallable callable = new TrackedCallable();
225	>	ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
226	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
227	>	assertFalse(callable.done);
228	>	Thread.sleep(MEDIUM_DELAY_MS);
229	>	assertTrue(callable.done);
230	>	assertEquals(Boolean.TRUE, f.get());
231	>	joinPool(p1);
232	>	}
233
234	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
235	<	String result = future.get();
234	>	/**
235	>	* a newScheduledThreadPool successfully runs delayed task
236	>	*/
237	>	public void testnewScheduledThreadPool() throws Exception {
238	>	TrackedCallable callable = new TrackedCallable();
239	>	ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
240	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
241	>	assertFalse(callable.done);
242	>	Thread.sleep(MEDIUM_DELAY_MS);
243	>	assertTrue(callable.done);
244	>	assertEquals(Boolean.TRUE, f.get());
245	>	joinPool(p1);
246	>	}
247
248	<	assertTrue("task should be complete", task.isCompleted());
249	<	assertSame("should return test string", TEST_STRING, result);
250	<	}
251	<	catch (ExecutionException ex) {
252	<	fail("Unexpected exception");
248	>	/**
249	>	* an unconfigurable newScheduledThreadPool successfully runs delayed task
250	>	*/
251	>	public void testunconfigurableScheduledExecutorService() throws Exception {
252	>	TrackedCallable callable = new TrackedCallable();
253	>	ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
254	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
255	>	assertFalse(callable.done);
256	>	Thread.sleep(MEDIUM_DELAY_MS);
257	>	assertTrue(callable.done);
258	>	assertEquals(Boolean.TRUE, f.get());
259	>	joinPool(p1);
260	>	}
261	>
262	>	/**
263	>	*  timeouts from execute will time out if they compute too long.
264	>	*/
265	>	public void testTimedCallable() throws Exception {
266	>	int N = 10000;
267	>	ExecutorService executor = Executors.newSingleThreadExecutor();
268	>	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
269	>	try {
270	>	long startTime = System.currentTimeMillis();
271	>
272	>	long i = 0;
273	>	while (tasks.size() < N) {
274	>	tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
275	>	i += 10;
276	>	}
277	>
278	>	int iters = 0;
279	>	BigInteger sum = BigInteger.ZERO;
280	>	for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
281	>	try {
282	>	++iters;
283	>	sum = sum.add(it.next().call());
284	>	}
285	>	catch (TimeoutException success) {
286	>	assertTrue(iters > 0);
287	>	return;
288	>	}
289	>	}
290	>	// if by chance we didn't ever time out, total time must be small
291	>	long elapsed = System.currentTimeMillis() - startTime;
292	>	assertTrue(elapsed < N);
293		}
294	<	catch (InterruptedException ex) {
295	<	fail("Unexpected exception");
294	>	finally {
295	>	joinPool(executor);
296		}
297		}
298
299	<	public void testInvokeRunnable () {
299	>
300	>	/**
301	>	* ThreadPoolExecutor using defaultThreadFactory has
302	>	* specified group, priority, daemon status, and name
303	>	*/
304	>	public void testDefaultThreadFactory() throws Exception {
305	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
306	>	Runnable r = new Runnable() {
307	>	public void run() {
308	>	try {
309	>	Thread current = Thread.currentThread();
310	>	threadAssertTrue(!current.isDaemon());
311	>	threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
312	>	ThreadGroup g = current.getThreadGroup();
313	>	SecurityManager s = System.getSecurityManager();
314	>	if (s != null)
315	>	threadAssertTrue(g == s.getThreadGroup());
316	>	else
317	>	threadAssertTrue(g == egroup);
318	>	String name = current.getName();
319	>	threadAssertTrue(name.endsWith("thread-1"));
320	>	} catch (SecurityException ok) {
321	>	// Also pass if not allowed to change setting
322	>	}
323	>	}
324	>	};
325	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
326	>
327	>	e.execute(r);
328		try {
329	<	Executor e = new DirectExecutor();
330	<	Task task = new Task();
329	>	e.shutdown();
330	>	} catch (SecurityException ok) {
331	>	}
332
333	<	assertFalse("task should not be complete", task.isCompleted());
333	>	try {
334	>	Thread.sleep(SHORT_DELAY_MS);
335	>	} finally {
336	>	joinPool(e);
337	>	}
338	>	}
339
340	<	Executors.invoke(e, task);
340	>	/**
341	>	* ThreadPoolExecutor using privilegedThreadFactory has
342	>	* specified group, priority, daemon status, name,
343	>	* access control context and context class loader
344	>	*/
345	>	public void testPrivilegedThreadFactory() throws Exception {
346	>	Policy savedPolicy = null;
347	>	try {
348	>	savedPolicy = Policy.getPolicy();
349	>	AdjustablePolicy policy = new AdjustablePolicy();
350	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
351	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
352	>	Policy.setPolicy(policy);
353	>	} catch (AccessControlException ok) {
354	>	return;
355	>	}
356	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
357	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
358	>	final AccessControlContext thisacc = AccessController.getContext();
359	>	Runnable r = new Runnable() {
360	>	public void run() {
361	>	try {
362	>	Thread current = Thread.currentThread();
363	>	threadAssertTrue(!current.isDaemon());
364	>	threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
365	>	ThreadGroup g = current.getThreadGroup();
366	>	SecurityManager s = System.getSecurityManager();
367	>	if (s != null)
368	>	threadAssertTrue(g == s.getThreadGroup());
369	>	else
370	>	threadAssertTrue(g == egroup);
371	>	String name = current.getName();
372	>	threadAssertTrue(name.endsWith("thread-1"));
373	>	threadAssertTrue(thisccl == current.getContextClassLoader());
374	>	threadAssertTrue(thisacc.equals(AccessController.getContext()));
375	>	} catch (SecurityException ok) {
376	>	// Also pass if not allowed to change settings
377	>	}
378	>	}
379	>	};
380	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
381
382	<	assertTrue("task should be complete", task.isCompleted());
382	>	Policy.setPolicy(savedPolicy);
383	>	e.execute(r);
384	>	try {
385	>	e.shutdown();
386	>	} catch (SecurityException ok) {
387	>	}
388	>	try {
389	>	Thread.sleep(SHORT_DELAY_MS);
390	>	} finally {
391	>	joinPool(e);
392		}
393	<	catch (ExecutionException ex) {
394	<	fail("Unexpected exception");
393	>
394	>	}
395	>
396	>	void checkCCL() {
397	>	SecurityManager sm = System.getSecurityManager();
398	>	if (sm != null) {
399	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
400	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
401		}
402	<	catch (InterruptedException ex) {
403	<	fail("Unexpected exception");
402	>	}
403	>
404	>	class CheckCCL implements Callable<Object> {
405	>	public Object call() {
406	>	checkCCL();
407	>	return null;
408		}
409		}
410
411	<	public void testExecuteCallable () {
411	>
412	>	/**
413	>	* Without class loader permissions, creating
414	>	* privilegedCallableUsingCurrentClassLoader throws ACE
415	>	*/
416	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
417	>	Policy savedPolicy = null;
418	>	try {
419	>	savedPolicy = Policy.getPolicy();
420	>	AdjustablePolicy policy = new AdjustablePolicy();
421	>	Policy.setPolicy(policy);
422	>	} catch (AccessControlException ok) {
423	>	return;
424	>	}
425	>
426	>	// Check if program still has too many permissions to run test
427		try {
428	<	Executor e = new DirectExecutor();
429	<	Future<String> future = Executors.execute(e, new StringTask());
430	<	String result = future.get();
428	>	checkCCL();
429	>	// too many privileges to test; so return
430	>	Policy.setPolicy(savedPolicy);
431	>	return;
432	>	} catch (AccessControlException ok) {
433	>	}
434	>
435	>	try {
436	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
437	>	shouldThrow();
438	>	} catch (AccessControlException success) {
439	>	} finally {
440	>	Policy.setPolicy(savedPolicy);
441	>	}
442	>	}
443
444	<	assertSame("should return test string", TEST_STRING, result);
444	>	/**
445	>	* With class loader permissions, calling
446	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
447	>	*/
448	>	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
449	>	Policy savedPolicy = null;
450	>	try {
451	>	savedPolicy = Policy.getPolicy();
452	>	AdjustablePolicy policy = new AdjustablePolicy();
453	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
454	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
455	>	Policy.setPolicy(policy);
456	>	} catch (AccessControlException ok) {
457	>	return;
458		}
459	<	catch (ExecutionException ex) {
460	<	fail("Unexpected exception");
459	>
460	>	try {
461	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
462	>	task.call();
463		}
464	<	catch (InterruptedException ex) {
465	<	fail("Unexpected exception");
464	>	finally {
465	>	Policy.setPolicy(savedPolicy);
466		}
467		}
468
469	<	public void testInvokeCallable () {
469	>	/**
470	>	* Without permissions, calling privilegedCallable throws ACE
471	>	*/
472	>	public void testprivilegedCallableWithNoPrivs() throws Exception {
473	>	Callable task;
474	>	Policy savedPolicy = null;
475	>	AdjustablePolicy policy = null;
476	>	AccessControlContext noprivAcc = null;
477		try {
478	<	Executor e = new DirectExecutor();
479	<	String result = Executors.invoke(e, new StringTask());
478	>	savedPolicy = Policy.getPolicy();
479	>	policy = new AdjustablePolicy();
480	>	Policy.setPolicy(policy);
481	>	noprivAcc = AccessController.getContext();
482	>	task = Executors.privilegedCallable(new CheckCCL());
483	>	Policy.setPolicy(savedPolicy);
484	>	} catch (AccessControlException ok) {
485	>	return; // program has too few permissions to set up test
486	>	}
487
488	<	assertSame("should return test string", TEST_STRING, result);
488	>	// Make sure that program doesn't have too many permissions
489	>	try {
490	>	AccessController.doPrivileged(new PrivilegedAction() {
491	>	public Object run() {
492	>	checkCCL();
493	>	return null;
494	>	}}, noprivAcc);
495	>	// too many permssions; skip test
496	>	return;
497	>	} catch (AccessControlException ok) {
498		}
499	<	catch (ExecutionException ex) {
500	<	fail("Unexpected exception" );
499	>
500	>	try {
501	>	task.call();
502	>	shouldThrow();
503	>	} catch (AccessControlException success) {}
504	>	}
505	>
506	>	/**
507	>	* With permissions, calling privilegedCallable succeeds
508	>	*/
509	>	public void testprivilegedCallableWithPrivs() throws Exception {
510	>	Policy savedPolicy = null;
511	>	try {
512	>	savedPolicy = Policy.getPolicy();
513	>	AdjustablePolicy policy = new AdjustablePolicy();
514	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
515	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
516	>	Policy.setPolicy(policy);
517	>	} catch (AccessControlException ok) {
518	>	return;
519		}
520	<	catch (InterruptedException ex) {
521	<	fail("Unexpected exception");
520	>
521	>	Callable task = Executors.privilegedCallable(new CheckCCL());
522	>	try {
523	>	task.call();
524	>	} finally {
525	>	Policy.setPolicy(savedPolicy);
526		}
527		}
528
529	<	private static final String TEST_STRING = "a test string";
529	>	/**
530	>	* callable(Runnable) returns null when called
531	>	*/
532	>	public void testCallable1() throws Exception {
533	>	Callable c = Executors.callable(new NoOpRunnable());
534	>	assertNull(c.call());
535	>	}
536
537	<	private static class Task implements Runnable {
538	<	public void run() { completed = true; }
539	<	public boolean isCompleted() { return completed; }
540	<	public void reset() { completed = false; }
541	<	private boolean completed = false;
537	>	/**
538	>	* callable(Runnable, result) returns result when called
539	>	*/
540	>	public void testCallable2() throws Exception {
541	>	Callable c = Executors.callable(new NoOpRunnable(), one);
542	>	assertEquals(one, c.call());
543		}
544
545	<	private static class StringTask implements Callable<String> {
546	<	public String call() { return TEST_STRING; }
545	>	/**
546	>	* callable(PrivilegedAction) returns its result when called
547	>	*/
548	>	public void testCallable3() throws Exception {
549	>	Callable c = Executors.callable(new PrivilegedAction() {
550	>	public Object run() { return one; }});
551	>	assertEquals(one, c.call());
552		}
553
554	<	static class DirectExecutor implements Executor {
555	<	public void execute(Runnable r) {
556	<	r.run();
557	<	}
554	>	/**
555	>	* callable(PrivilegedExceptionAction) returns its result when called
556	>	*/
557	>	public void testCallable4() throws Exception {
558	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
559	>	public Object run() { return one; }});
560	>	assertEquals(one, c.call());
561	>	}
562	>
563	>
564	>	/**
565	>	* callable(null Runnable) throws NPE
566	>	*/
567	>	public void testCallableNPE1() {
568	>	try {
569	>	Callable c = Executors.callable((Runnable) null);
570	>	shouldThrow();
571	>	} catch (NullPointerException success) {}
572	>	}
573	>
574	>	/**
575	>	* callable(null, result) throws NPE
576	>	*/
577	>	public void testCallableNPE2() {
578	>	try {
579	>	Callable c = Executors.callable((Runnable) null, one);
580	>	shouldThrow();
581	>	} catch (NullPointerException success) {}
582	>	}
583	>
584	>	/**
585	>	* callable(null PrivilegedAction) throws NPE
586	>	*/
587	>	public void testCallableNPE3() {
588	>	try {
589	>	Callable c = Executors.callable((PrivilegedAction) null);
590	>	shouldThrow();
591	>	} catch (NullPointerException success) {}
592	>	}
593	>
594	>	/**
595	>	* callable(null PrivilegedExceptionAction) throws NPE
596	>	*/
597	>	public void testCallableNPE4() {
598	>	try {
599	>	Callable c = Executors.callable((PrivilegedExceptionAction) null);
600	>	shouldThrow();
601	>	} catch (NullPointerException success) {}
602		}
603
604

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