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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 1.17 by dl, Mon Apr 3 15:00:59 2006 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
#	Line 10 | Line 11 | 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{
15	<
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		}
19	–
20	–
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		}
38	–
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	<	}
50	<
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	+	joinPool(e);
73	+	}
74
75		/**
76	<	*  Test to verify execute(Executor, Runnable) will throw
55	<	*  RejectedExecutionException Attempting to execute a runnable on
56	<	*  a full ThreadPool will cause such an exception here, up to 5
57	<	*  runnables are attempted on a pool capable on handling one
58	<	*  until it throws an exception
76	>	* A newCachedThreadPool with given ThreadFactory can execute runnables
77		*/
78	<	public void testExecute1(){
79	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
80	<	try{
81	<
82	<	for(int i = 0; i < 5; ++i){
83	<	Executors.execute(p, new SleepRun(), Boolean.TRUE);
66	<	}
67	<	fail("should throw");
68	<	} catch(RejectedExecutionException success){}
69	<	p.shutdownNow();
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	>	joinPool(e);
84		}
85
86		/**
87	<	*  Test to verify execute(Executor, Callable) will throw
88	<	*  RejectedExecutionException Attempting to execute a callable on
89	<	*  a full ThreadPool will cause such an exception here, up to 5
90	<	*  runnables are attempted on a pool capable on handling one
91	<	*  until it throws an exception
92	<	*/
93	<	public void testExecute2(){
94	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
95	<	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();
87	>	* A newCachedThreadPool with null ThreadFactory throws NPE
88	>	*/
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 invoke(Executor, Runnable) throws InterruptedException
101	<	*  A single use of invoke starts that will wait long enough
102	<	*  for the invoking thread to be interrupted
103	<	*/
104	<	public void testInvoke2(){
105	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
106	<	Thread t = new Thread(new Runnable() {
107	<	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();
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	>	joinPool(e);
108		}
109
110		/**
111	<	*  Test to verify invoke(Executor, Runnable) will throw
112	<	*  ExecutionException An ExecutionException occurs when the
113	<	*  underlying Runnable throws an exception, here the
114	<	*  DivideByZeroException will cause an ExecutionException
115	<	*/
116	<	public void testInvoke3(){
117	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
118	<	try{
136	<	Runnable r = new Runnable(){
137	<	public void run(){
138	<	int i = 5/0;
139	<	}
140	<	};
141	<
142	<	for(int i =0; i < 5; i++){
143	<	Executors.invoke(p,r);
144	<	}
145	<
146	<	fail("should throw");
147	<	} catch(ExecutionException success){
148	<	} catch(Exception e){
149	<	fail("should throw EE");
150	<	}
151	<	p.shutdownNow();
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	>	joinPool(e);
119		}
120
154	–
155	–
121		/**
122	<	*  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
122	>	* A new SingleThreadExecutor with null ThreadFactory throws NPE
123		*/
124	<	public void testInvoke5(){
125	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
126	<
127	<	final Callable c = new Callable(){
128	<	public Object call(){
129	<	try{
167	<	Executors.invoke(p, new SleepCall());
168	<	fail("should throw");
169	<	}catch(InterruptedException e){}
170	<	catch(RejectedExecutionException e2){}
171	<	catch(ExecutionException e3){}
172	<	return Boolean.TRUE;
173	<	}
174	<	};
175	<
176	<
177	<
178	<	Thread t = new Thread(new Runnable(){
179	<	public void run(){
180	<	try{
181	<	c.call();
182	<	}catch(Exception e){}
183	<	}
184	<	});
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");
124	>	public void testNewSingleThreadExecutor3() {
125	>	try {
126	>	ExecutorService e = Executors.newSingleThreadExecutor(null);
127	>	shouldThrow();
128	>	}
129	>	catch(NullPointerException success) {
130		}
193	–
194	–	p.shutdownNow();
131		}
132
133		/**
134	<	*  Test to verify invoke(Executor, Callable) will throw ExecutionException
199	<	*  An ExecutionException occurs when the underlying Runnable throws
200	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
134	>	* A new SingleThreadExecutor cannot be casted to concrete implementation
135		*/
136	<	public void testInvoke6(){
137	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
138	<
139	<	try{
140	<	Callable c = new Callable(){
141	<	public Object call(){
142	<	int i = 5/0;
143	<	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();
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	>	}
144		}
145
224	–	public void testExecuteRunnable () {
225	–	try {
226	–	Executor e = new DirectExecutor();
227	–	Task task = new Task();
146
147	<	assertFalse("task should not be complete", task.isCompleted());
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	>	joinPool(e);
156	>	}
157
158	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
159	<	String result = future.get();
158	>	/**
159	>	* A new newFixedThreadPool with given ThreadFactory can execute runnables
160	>	*/
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	>	joinPool(e);
167	>	}
168
169	<	assertTrue("task should be complete", task.isCompleted());
170	<	assertSame("should return test string", TEST_STRING, result);
171	<	}
172	<	catch (ExecutionException ex) {
173	<	fail("Unexpected exception");
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 (InterruptedException ex) {
241	<	fail("Unexpected exception");
177	>	catch(NullPointerException success) {
178		}
179		}
180
181	<	public void testInvokeRunnable () {
181	>	/**
182	>	* A new newFixedThreadPool with 0 threads throws IAE
183	>	*/
184	>	public void testNewFixedThreadPool4() {
185		try {
186	<	Executor e = new DirectExecutor();
187	<	Task task = new Task();
249	<
250	<	assertFalse("task should not be complete", task.isCompleted());
251	<
252	<	Executors.invoke(e, task);
253	<
254	<	assertTrue("task should be complete", task.isCompleted());
255	<	}
256	<	catch (ExecutionException ex) {
257	<	fail("Unexpected exception");
186	>	ExecutorService e = Executors.newFixedThreadPool(0);
187	>	shouldThrow();
188		}
189	<	catch (InterruptedException ex) {
260	<	fail("Unexpected exception");
189	>	catch(IllegalArgumentException success) {
190		}
191		}
192
264	–	public void testExecuteCallable () {
265	–	try {
266	–	Executor e = new DirectExecutor();
267	–	Future<String> future = Executors.execute(e, new StringTask());
268	–	String result = future.get();
193
194	<	assertSame("should return test string", TEST_STRING, result);
195	<	}
196	<	catch (ExecutionException ex) {
197	<	fail("Unexpected exception");
194	>	/**
195	>	* An unconfigurable newFixedThreadPool can execute runnables
196	>	*/
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	>	joinPool(e);
203	>	}
204	>
205	>	/**
206	>	* unconfigurableExecutorService(null) throws NPE
207	>	*/
208	>	public void testunconfigurableExecutorServiceNPE() {
209	>	try {
210	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
211		}
212	<	catch (InterruptedException ex) {
276	<	fail("Unexpected exception");
212	>	catch (NullPointerException success) {
213		}
214		}
215
216	<	public void testInvokeCallable () {
216	>	/**
217	>	* unconfigurableScheduledExecutorService(null) throws NPE
218	>	*/
219	>	public void testunconfigurableScheduledExecutorServiceNPE() {
220		try {
221	<	Executor e = new DirectExecutor();
283	<	String result = Executors.invoke(e, new StringTask());
284	<
285	<	assertSame("should return test string", TEST_STRING, result);
286	<	}
287	<	catch (ExecutionException ex) {
288	<	fail("Unexpected exception" );
221	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
222		}
223	<	catch (InterruptedException ex) {
291	<	fail("Unexpected exception");
223	>	catch (NullPointerException success) {
224		}
225		}
226
295	–	private static final String TEST_STRING = "a test string";
227
228	<	private static class Task implements Runnable {
229	<	public void run() { completed = true; }
230	<	public boolean isCompleted() { return completed; }
231	<	public void reset() { completed = false; }
232	<	private boolean completed = false;
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	>	joinPool(p1);
241	>	} catch(RejectedExecutionException e){}
242	>	catch(Exception e){
243	>	e.printStackTrace();
244	>	unexpectedException();
245	>	}
246		}
247
248	<	private static class StringTask implements Callable<String> {
249	<	public String call() { return TEST_STRING; }
248	>	/**
249	>	* a newScheduledThreadPool successfully runs delayed task
250	>	*/
251	>	public void testnewScheduledThreadPool() {
252	>	try {
253	>	TrackedCallable callable = new TrackedCallable();
254	>	ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
255	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
256	>	assertFalse(callable.done);
257	>	Thread.sleep(MEDIUM_DELAY_MS);
258	>	assertTrue(callable.done);
259	>	assertEquals(Boolean.TRUE, f.get());
260	>	joinPool(p1);
261	>	} catch(RejectedExecutionException e){}
262	>	catch(Exception e){
263	>	e.printStackTrace();
264	>	unexpectedException();
265	>	}
266		}
267
268	<	static class DirectExecutor implements Executor {
269	<	public void execute(Runnable r) {
270	<	r.run();
268	>	/**
269	>	* an unconfigurable  newScheduledThreadPool successfully runs delayed task
270	>	*/
271	>	public void testunconfigurableScheduledExecutorService() {
272	>	try {
273	>	TrackedCallable callable = new TrackedCallable();
274	>	ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
275	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
276	>	assertFalse(callable.done);
277	>	Thread.sleep(MEDIUM_DELAY_MS);
278	>	assertTrue(callable.done);
279	>	assertEquals(Boolean.TRUE, f.get());
280	>	joinPool(p1);
281	>	} catch(RejectedExecutionException e){}
282	>	catch(Exception e){
283	>	e.printStackTrace();
284	>	unexpectedException();
285		}
286		}
287
288		/**
289	<	* Check that timeouts from execute will time out if they compute
316	<	* too long.
289	>	*  timeouts from execute will time out if they compute too long.
290		*/
318	–
291		public void testTimedCallable() {
292		int N = 10000;
293		ExecutorService executor = Executors.newSingleThreadExecutor();
#	Line 341 | Line 313 | public class ExecutorsTest extends TestC
313		return;
314		}
315		catch (Exception e) {
316	<	fail("unexpected exception: " + e);
316	>	unexpectedException();
317		}
318		}
319		// if by chance we didn't ever time out, total time must be small
#	Line 349 | Line 321 | public class ExecutorsTest extends TestC
321		assertTrue(elapsed < N);
322		}
323		finally {
324	<	executor.shutdownNow();
324	>	joinPool(executor);
325		}
326		}
327
328
329	<	static class TimedCallable<T> implements Callable<T> {
330	<	private final Executor exec;
331	<	private final Callable<T> func;
332	<	private final long msecs;
329	>	/**
330	>	* ThreadPoolExecutor using defaultThreadFactory has
331	>	* specified group, priority, daemon status, and name
332	>	*/
333	>	public void testDefaultThreadFactory() {
334	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
335	>	Runnable r = new Runnable() {
336	>	public void run() {
337	>	try {
338	>	Thread current = Thread.currentThread();
339	>	threadAssertTrue(!current.isDaemon());
340	>	threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
341	>	ThreadGroup g = current.getThreadGroup();
342	>	SecurityManager s = System.getSecurityManager();
343	>	if (s != null)
344	>	threadAssertTrue(g == s.getThreadGroup());
345	>	else
346	>	threadAssertTrue(g == egroup);
347	>	String name = current.getName();
348	>	threadAssertTrue(name.endsWith("thread-1"));
349	>	} catch (SecurityException ok) {
350	>	// Also pass if not allowed to change setting
351	>	}
352	>	}
353	>	};
354	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
355
356	<	TimedCallable(Executor exec, Callable<T> func, long msecs) {
357	<	this.exec = exec;
358	<	this.func = func;
359	<	this.msecs = msecs;
356	>	e.execute(r);
357	>	try {
358	>	e.shutdown();
359	>	} catch(SecurityException ok) {
360		}
361
362	<	public T call() throws Exception {
363	<	Future<T> ftask = Executors.execute(exec, func);
364	<	try {
365	<	return ftask.get(msecs, TimeUnit.MILLISECONDS);
366	<	} finally {
367	<	ftask.cancel(true);
374	<	}
362	>	try {
363	>	Thread.sleep(SHORT_DELAY_MS);
364	>	} catch (Exception eX) {
365	>	unexpectedException();
366	>	} finally {
367	>	joinPool(e);
368		}
369		}
370
371	+	/**
372	+	* ThreadPoolExecutor using privilegedThreadFactory has
373	+	* specified group, priority, daemon status, name,
374	+	* access control context and context class loader
375	+	*/
376	+	public void testPrivilegedThreadFactory() {
377	+	Policy savedPolicy = null;
378	+	try {
379	+	savedPolicy = Policy.getPolicy();
380	+	AdjustablePolicy policy = new AdjustablePolicy();
381	+	policy.addPermission(new RuntimePermission("getContextClassLoader"));
382	+	policy.addPermission(new RuntimePermission("setContextClassLoader"));
383	+	Policy.setPolicy(policy);
384	+	} catch (AccessControlException ok) {
385	+	return;
386	+	}
387	+	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
388	+	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
389	+	final AccessControlContext thisacc = AccessController.getContext();
390	+	Runnable r = new Runnable() {
391	+	public void run() {
392	+	try {
393	+	Thread current = Thread.currentThread();
394	+	threadAssertTrue(!current.isDaemon());
395	+	threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
396	+	ThreadGroup g = current.getThreadGroup();
397	+	SecurityManager s = System.getSecurityManager();
398	+	if (s != null)
399	+	threadAssertTrue(g == s.getThreadGroup());
400	+	else
401	+	threadAssertTrue(g == egroup);
402	+	String name = current.getName();
403	+	threadAssertTrue(name.endsWith("thread-1"));
404	+	threadAssertTrue(thisccl == current.getContextClassLoader());
405	+	threadAssertTrue(thisacc.equals(AccessController.getContext()));
406	+	} catch(SecurityException ok) {
407	+	// Also pass if not allowed to change settings
408	+	}
409	+	}
410	+	};
411	+	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
412	+
413	+	Policy.setPolicy(savedPolicy);
414	+	e.execute(r);
415	+	try {
416	+	e.shutdown();
417	+	} catch(SecurityException ok) {
418	+	}
419	+	try {
420	+	Thread.sleep(SHORT_DELAY_MS);
421	+	} catch (Exception ex) {
422	+	unexpectedException();
423	+	} finally {
424	+	joinPool(e);
425	+	}
426
427	<	private static class Fib implements Callable<BigInteger> {
428	<	private final BigInteger n;
429	<	Fib(long n) {
430	<	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
431	<	this.n = BigInteger.valueOf(n);
427	>	}
428	>
429	>	void checkCCL() {
430	>	AccessController.getContext().checkPermission(new RuntimePermission("getContextClassLoader"));
431	>	}
432	>
433	>	class CheckCCL implements Callable<Object> {
434	>	public Object call() {
435	>	checkCCL();
436	>	return null;
437		}
438	<	public BigInteger call() {
439	<	BigInteger f1 = BigInteger.ONE;
440	<	BigInteger f2 = f1;
441	<	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
442	<	BigInteger t = f1.add(f2);
443	<	f1 = f2;
444	<	f2 = t;
445	<	}
446	<	return f1;
438	>	}
439	>
440	>
441	>	/**
442	>	* Without class loader permissions, creating
443	>	* privilegedCallableUsingCurrentClassLoader throws ACE
444	>	*/
445	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
446	>	Policy savedPolicy = null;
447	>	try {
448	>	savedPolicy = Policy.getPolicy();
449	>	AdjustablePolicy policy = new AdjustablePolicy();
450	>	Policy.setPolicy(policy);
451	>	} catch (AccessControlException ok) {
452	>	return;
453		}
395	–	};
454
455	+	// Check if program still has too many permissions to run test
456	+	try {
457	+	checkCCL();
458	+	// too many privileges to test; so return
459	+	Policy.setPolicy(savedPolicy);
460	+	return;
461	+	} catch(AccessControlException ok) {
462	+	}
463	+
464	+	try {
465	+	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
466	+	shouldThrow();
467	+	} catch(AccessControlException success) {
468	+	} catch(Exception ex) {
469	+	unexpectedException();
470	+	}
471	+	finally {
472	+	Policy.setPolicy(savedPolicy);
473	+	}
474	+	}
475	+
476	+	/**
477	+	* With class loader permissions, calling
478	+	* privilegedCallableUsingCurrentClassLoader does not throw ACE
479	+	*/
480	+	public void testprivilegedCallableUsingCCLWithPrivs() {
481	+	Policy savedPolicy = null;
482	+	try {
483	+	savedPolicy = Policy.getPolicy();
484	+	AdjustablePolicy policy = new AdjustablePolicy();
485	+	policy.addPermission(new RuntimePermission("getContextClassLoader"));
486	+	policy.addPermission(new RuntimePermission("setContextClassLoader"));
487	+	Policy.setPolicy(policy);
488	+	} catch (AccessControlException ok) {
489	+	return;
490	+	}
491	+
492	+	try {
493	+	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
494	+	task.call();
495	+	} catch(Exception ex) {
496	+	unexpectedException();
497	+	}
498	+	finally {
499	+	Policy.setPolicy(savedPolicy);
500	+	}
501	+	}
502	+
503	+	/**
504	+	* Without permissions, calling privilegedCallable throws ACE
505	+	*/
506	+	public void testprivilegedCallableWithNoPrivs() {
507	+	Callable task;
508	+	Policy savedPolicy = null;
509	+	AdjustablePolicy policy = null;
510	+	AccessControlContext noprivAcc = null;
511	+	try {
512	+	savedPolicy = Policy.getPolicy();
513	+	policy = new AdjustablePolicy();
514	+	Policy.setPolicy(policy);
515	+	noprivAcc = AccessController.getContext();
516	+	task = Executors.privilegedCallable(new CheckCCL());
517	+	Policy.setPolicy(savedPolicy);
518	+	} catch (AccessControlException ok) {
519	+	return; // program has too few permissions to set up test
520	+	}
521	+
522	+	// Make sure that program doesn't have too many permissions
523	+	try {
524	+	AccessController.doPrivileged(new PrivilegedAction() {
525	+	public Object run() {
526	+	checkCCL();
527	+	return null;
528	+	}}, noprivAcc);
529	+	// too many permssions; skip test
530	+	return;
531	+	} catch(AccessControlException ok) {
532	+	}
533	+
534	+	try {
535	+	task.call();
536	+	shouldThrow();
537	+	} catch(AccessControlException success) {
538	+	} catch(Exception ex) {
539	+	unexpectedException();
540	+	}
541	+	}
542	+
543	+	/**
544	+	* With permissions, calling privilegedCallable succeeds
545	+	*/
546	+	public void testprivilegedCallableWithPrivs() {
547	+	Policy savedPolicy = null;
548	+	try {
549	+	savedPolicy = Policy.getPolicy();
550	+	AdjustablePolicy policy = new AdjustablePolicy();
551	+	policy.addPermission(new RuntimePermission("getContextClassLoader"));
552	+	policy.addPermission(new RuntimePermission("setContextClassLoader"));
553	+	Policy.setPolicy(policy);
554	+	} catch (AccessControlException ok) {
555	+	return;
556	+	}
557	+
558	+	Callable task = Executors.privilegedCallable(new CheckCCL());
559	+	try {
560	+	task.call();
561	+	} catch(Exception ex) {
562	+	unexpectedException();
563	+	} finally {
564	+	Policy.setPolicy(savedPolicy);
565	+	}
566	+	}
567	+
568	+	/**
569	+	* callable(Runnable) returns null when called
570	+	*/
571	+	public void testCallable1() {
572	+	try {
573	+	Callable c = Executors.callable(new NoOpRunnable());
574	+	assertNull(c.call());
575	+	} catch(Exception ex) {
576	+	unexpectedException();
577	+	}
578	+
579	+	}
580	+
581	+	/**
582	+	* callable(Runnable, result) returns result when called
583	+	*/
584	+	public void testCallable2() {
585	+	try {
586	+	Callable c = Executors.callable(new NoOpRunnable(), one);
587	+	assertEquals(one, c.call());
588	+	} catch(Exception ex) {
589	+	unexpectedException();
590	+	}
591	+	}
592	+
593	+	/**
594	+	* callable(PrivilegedAction) returns its result when called
595	+	*/
596	+	public void testCallable3() {
597	+	try {
598	+	Callable c = Executors.callable(new PrivilegedAction() {
599	+	public Object run() { return one; }});
600	+	assertEquals(one, c.call());
601	+	} catch(Exception ex) {
602	+	unexpectedException();
603	+	}
604	+	}
605	+
606	+	/**
607	+	* callable(PrivilegedExceptionAction) returns its result when called
608	+	*/
609	+	public void testCallable4() {
610	+	try {
611	+	Callable c = Executors.callable(new PrivilegedExceptionAction() {
612	+	public Object run() { return one; }});
613	+	assertEquals(one, c.call());
614	+	} catch(Exception ex) {
615	+	unexpectedException();
616	+	}
617	+	}
618	+
619	+
620	+	/**
621	+	* callable(null Runnable) throws NPE
622	+	*/
623	+	public void testCallableNPE1() {
624	+	try {
625	+	Runnable r = null;
626	+	Callable c = Executors.callable(r);
627	+	} catch (NullPointerException success) {
628	+	}
629	+	}
630	+
631	+	/**
632	+	* callable(null, result) throws NPE
633	+	*/
634	+	public void testCallableNPE2() {
635	+	try {
636	+	Runnable r = null;
637	+	Callable c = Executors.callable(r, one);
638	+	} catch (NullPointerException success) {
639	+	}
640	+	}
641	+
642	+	/**
643	+	* callable(null PrivilegedAction) throws NPE
644	+	*/
645	+	public void testCallableNPE3() {
646	+	try {
647	+	PrivilegedAction r = null;
648	+	Callable c = Executors.callable(r);
649	+	} catch (NullPointerException success) {
650	+	}
651	+	}
652	+
653	+	/**
654	+	* callable(null PrivilegedExceptionAction) throws NPE
655	+	*/
656	+	public void testCallableNPE4() {
657	+	try {
658	+	PrivilegedExceptionAction r = null;
659	+	Callable c = Executors.callable(r);
660	+	} catch (NullPointerException success) {
661	+	}
662	+	}
663
664
665		}

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