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

Comparing jsr166/src/test/tck/ExecutorsTest.java (file contents):
Revision 1.3 by dl, Sun Sep 14 20:42:40 2003 UTC vs.
Revision 1.14 by dl, Tue Jan 20 20:20:56 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
#	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 JSR166TestCase{
15	–
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	<	/**
25	<	*   execute(Executor, Runnable) will throw
26	<	*  RejectedExecutionException Attempting to execute a runnable on
27	<	*  a full ThreadPool will cause such an exception here, up to 5
28	<	*  runnables are attempted on a pool capable on handling one
29	<	*  until it throws an exception
30	<	*/
31	<	public void testExecute1(){
32	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
33	<	try{
34	<
35	<	for(int i = 0; i < 5; ++i){
36	<	Executors.execute(p, new MediumRunnable(), Boolean.TRUE);
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	<	fail("should throw");
40	<	} catch(RejectedExecutionException success){}
41	<	joinPool(p);
42	>	}
43		}
44
45	<	/**
46	<	*   execute(Executor, Callable) will throw
47	<	*  RejectedExecutionException Attempting to execute a callable on
48	<	*  a full ThreadPool will cause such an exception here, up to 5
49	<	*  runnables are attempted on a pool capable on handling one
50	<	*  until it throws an exception
51	<	*/
52	<	public void testExecute2(){
53	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
54	<	try{
55	<	for(int i = 0; i < 5; ++i) {
56	<	Executors.execute(p, new SmallCallable());
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	<	fail("should throw");
61	<	}catch(RejectedExecutionException e){}
62	<	joinPool(p);
60	<	}
60	>	return f1;
61	>	}
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	<	*   invoke(Executor, Runnable) throws InterruptedException
77	<	*  A single use of invoke starts that will wait long enough
78	<	*  for the invoking thread to be interrupted
79	<	*/
80	<	public void testInvoke2(){
81	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
82	<	Thread t = new Thread(new Runnable() {
83	<	public void run(){
72	<	try{
73	<	Executors.invoke(p,new Runnable(){
74	<	public void run(){
75	<	try{
76	<	Thread.sleep(MEDIUM_DELAY_MS);
77	<	fail("should throw");
78	<	}catch(InterruptedException e){
79	<	}
80	<	}
81	<	});
82	<	} catch(InterruptedException success){
83	<	} catch(Exception e) {
84	<	fail("unexpected exception");
85	<	}
86	<
87	<	}
88	<	});
89	<	try{
90	<	t.start();
91	<	Thread.sleep(SHORT_DELAY_MS);
92	<	t.interrupt();
93	<	}catch(Exception e){
94	<	fail("unexpected exception");
95	<	}
96	<	joinPool(p);
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	>	joinPool(e);
84		}
85
86		/**
87	<	*   invoke(Executor, Runnable) will throw
88	<	*  ExecutionException An ExecutionException occurs when the
89	<	*  underlying Runnable throws an exception, here the
90	<	*  DivideByZeroException will cause an ExecutionException
91	<	*/
92	<	public void testInvoke3(){
93	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
94	<	try{
108	<	Runnable r = new Runnable(){
109	<	public void run(){
110	<	int i = 5/0;
111	<	}
112	<	};
113	<
114	<	for(int i =0; i < 5; i++){
115	<	Executors.invoke(p,r);
116	<	}
117	<
118	<	fail("should throw");
119	<	} catch(ExecutionException success){
120	<	} catch(Exception e){
121	<	fail("should throw EE");
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		}
123	–	joinPool(p);
96		}
97
98
127	–
99		/**
100	<	*   invoke(Executor, Callable) throws
130	<	*  InterruptedException A single use of invoke starts that will
131	<	*  wait long enough for the invoking thread to be interrupted
100	>	* A new SingleThreadExecutor can execute runnables
101		*/
102	<	public void testInvoke5(){
103	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
104	<
105	<	final Callable c = new Callable(){
106	<	public Object call(){
107	<	try{
108	<	Executors.invoke(p, new SmallCallable());
140	<	fail("should throw");
141	<	}catch(InterruptedException e){}
142	<	catch(RejectedExecutionException e2){}
143	<	catch(ExecutionException e3){}
144	<	return Boolean.TRUE;
145	<	}
146	<	};
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	+	* 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
121	<
122	<	Thread t = new Thread(new Runnable(){
123	<	public void run(){
124	<	try{
125	<	c.call();
126	<	}catch(Exception e){}
127	<	}
128	<	});
129	<	try{
158	<	t.start();
159	<	Thread.sleep(SHORT_DELAY_MS);
160	<	t.interrupt();
161	<	t.join();
162	<	}catch(InterruptedException e){
163	<	fail("unexpected exception");
121	>	/**
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		}
165	–
166	–	joinPool(p);
131		}
132
133		/**
134	<	*   invoke(Executor, Callable) will throw ExecutionException
171	<	*  An ExecutionException occurs when the underlying Runnable throws
172	<	*  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,SHORT_DELAY_MS, 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;
182	<	}
183	<	};
184	<
185	<	for(int i =0; i < 5; i++){
186	<	Executors.invoke(p,c);
187	<	}
188	<
189	<	fail("should throw");
190	<	}catch(RejectedExecutionException e){}
191	<	catch(InterruptedException e2){}
192	<	catch(ExecutionException e3){}
193	<	joinPool(p);
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
196	–	public void testExecuteRunnable () {
197	–	try {
198	–	Executor e = new DirectExecutor();
199	–	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) {
213	<	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();
221	<
222	<	assertFalse("task should not be complete", task.isCompleted());
223	<
224	<	Executors.invoke(e, task);
225	<
226	<	assertTrue("task should be complete", task.isCompleted());
186	>	ExecutorService e = Executors.newFixedThreadPool(0);
187	>	shouldThrow();
188		}
189	<	catch (ExecutionException ex) {
229	<	fail("Unexpected exception");
230	<	}
231	<	catch (InterruptedException ex) {
232	<	fail("Unexpected exception");
189	>	catch(IllegalArgumentException success) {
190		}
191		}
192
236	–	public void testExecuteCallable () {
237	–	try {
238	–	Executor e = new DirectExecutor();
239	–	Future<String> future = Executors.execute(e, new StringTask());
240	–	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) {
248	<	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();
255	<	String result = Executors.invoke(e, new StringTask());
256	<
257	<	assertSame("should return test string", TEST_STRING, result);
258	<	}
259	<	catch (ExecutionException ex) {
260	<	fail("Unexpected exception" );
221	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
222		}
223	<	catch (InterruptedException ex) {
263	<	fail("Unexpected exception");
223	>	catch (NullPointerException success) {
224		}
225		}
226
267	–	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
288	<	* too long.
289	>	*  timeouts from execute will time out if they compute too long.
290		*/
290	–
291		public void testTimedCallable() {
292		int N = 10000;
293		ExecutorService executor = Executors.newSingleThreadExecutor();
#	Line 313 | Line 313 | public class ExecutorsTest extends JSR16
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 326 | Line 326 | public class ExecutorsTest extends JSR16
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);
346	<	}
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	+	}
428
429	<	private static class Fib implements Callable<BigInteger> {
430	<	private final BigInteger n;
431	<	Fib(long n) {
432	<	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
433	<	this.n = BigInteger.valueOf(n);
429	>	static class CheckCCL implements Callable<Object> {
430	>	public Object call() {
431	>	AccessControlContext acc = AccessController.getContext();
432	>	acc.checkPermission(new RuntimePermission("getContextClassLoader"));
433	>	return null;
434		}
435	<	public BigInteger call() {
436	<	BigInteger f1 = BigInteger.ONE;
437	<	BigInteger f2 = f1;
438	<	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
439	<	BigInteger t = f1.add(f2);
440	<	f1 = f2;
441	<	f2 = t;
442	<	}
443	<	return f1;
435	>	}
436	>
437	>
438	>	/**
439	>	* Without class loader permissions, creating
440	>	* privilegedCallableUsingCurrentClassLoader throws ACE
441	>	*/
442	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
443	>	Policy savedPolicy = null;
444	>	try {
445	>	savedPolicy = Policy.getPolicy();
446	>	AdjustablePolicy policy = new AdjustablePolicy();
447	>	Policy.setPolicy(policy);
448	>	} catch (AccessControlException ok) {
449	>	return;
450		}
367	–	};
451
452	+	try {
453	+	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
454	+	shouldThrow();
455	+	} catch(AccessControlException success) {
456	+	} catch(Exception ex) {
457	+	unexpectedException();
458	+	}
459	+	finally {
460	+	Policy.setPolicy(savedPolicy);
461	+	}
462	+	}
463	+
464	+	/**
465	+	* Without class loader permissions, calling
466	+	* privilegedCallableUsingCurrentClassLoader throws ACE
467	+	*/
468	+	public void testprivilegedCallableUsingCCLWithPrivs() {
469	+	Policy savedPolicy = null;
470	+	try {
471	+	savedPolicy = Policy.getPolicy();
472	+	AdjustablePolicy policy = new AdjustablePolicy();
473	+	policy.addPermission(new RuntimePermission("getContextClassLoader"));
474	+	policy.addPermission(new RuntimePermission("setContextClassLoader"));
475	+	Policy.setPolicy(policy);
476	+	} catch (AccessControlException ok) {
477	+	return;
478	+	}
479	+
480	+	try {
481	+	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
482	+	task.call();
483	+	} catch(Exception ex) {
484	+	unexpectedException();
485	+	}
486	+	finally {
487	+	Policy.setPolicy(savedPolicy);
488	+	}
489	+	}
490	+
491	+	/**
492	+	* Without permissions, calling privilegedCallable throws ACE
493	+	*/
494	+	public void testprivilegedCallableWithNoPrivs() {
495	+	Policy savedPolicy = null;
496	+	try {
497	+	savedPolicy = Policy.getPolicy();
498	+	AdjustablePolicy policy = new AdjustablePolicy();
499	+	Policy.setPolicy(policy);
500	+	} catch (AccessControlException ok) {
501	+	return;
502	+	}
503	+
504	+	Callable task = Executors.privilegedCallable(new CheckCCL());
505	+	Policy.setPolicy(savedPolicy);
506	+	try {
507	+	task.call();
508	+	shouldThrow();
509	+	} catch(AccessControlException success) {
510	+	} catch(Exception ex) {
511	+	unexpectedException();
512	+	} finally {
513	+	}
514	+	}
515	+
516	+	/**
517	+	* With permissions, calling privilegedCallable succeeds
518	+	*/
519	+	public void testprivilegedCallableWithPrivs() {
520	+	Policy savedPolicy = null;
521	+	try {
522	+	savedPolicy = Policy.getPolicy();
523	+	AdjustablePolicy policy = new AdjustablePolicy();
524	+	policy.addPermission(new RuntimePermission("getContextClassLoader"));
525	+	policy.addPermission(new RuntimePermission("setContextClassLoader"));
526	+	Policy.setPolicy(policy);
527	+	} catch (AccessControlException ok) {
528	+	return;
529	+	}
530	+
531	+	Callable task = Executors.privilegedCallable(new CheckCCL());
532	+	try {
533	+	task.call();
534	+	} catch(Exception ex) {
535	+	unexpectedException();
536	+	} finally {
537	+	Policy.setPolicy(savedPolicy);
538	+	}
539	+	}
540	+
541	+	/**
542	+	* callable(Runnable) returns null when called
543	+	*/
544	+	public void testCallable1() {
545	+	try {
546	+	Callable c = Executors.callable(new NoOpRunnable());
547	+	assertNull(c.call());
548	+	} catch(Exception ex) {
549	+	unexpectedException();
550	+	}
551	+
552	+	}
553	+
554	+	/**
555	+	* callable(Runnable, result) returns result when called
556	+	*/
557	+	public void testCallable2() {
558	+	try {
559	+	Callable c = Executors.callable(new NoOpRunnable(), one);
560	+	assertEquals(one, c.call());
561	+	} catch(Exception ex) {
562	+	unexpectedException();
563	+	}
564	+	}
565	+
566	+	/**
567	+	* callable(PrivilegedAction) returns its result when called
568	+	*/
569	+	public void testCallable3() {
570	+	try {
571	+	Callable c = Executors.callable(new PrivilegedAction() {
572	+	public Object run() { return one; }});
573	+	assertEquals(one, c.call());
574	+	} catch(Exception ex) {
575	+	unexpectedException();
576	+	}
577	+	}
578	+
579	+	/**
580	+	* callable(PrivilegedExceptionAction) returns its result when called
581	+	*/
582	+	public void testCallable4() {
583	+	try {
584	+	Callable c = Executors.callable(new PrivilegedExceptionAction() {
585	+	public Object run() { return one; }});
586	+	assertEquals(one, c.call());
587	+	} catch(Exception ex) {
588	+	unexpectedException();
589	+	}
590	+	}
591	+
592	+
593	+	/**
594	+	* callable(null Runnable) throws NPE
595	+	*/
596	+	public void testCallableNPE1() {
597	+	try {
598	+	Runnable r = null;
599	+	Callable c = Executors.callable(r);
600	+	} catch (NullPointerException success) {
601	+	}
602	+	}
603	+
604	+	/**
605	+	* callable(null, result) throws NPE
606	+	*/
607	+	public void testCallableNPE2() {
608	+	try {
609	+	Runnable r = null;
610	+	Callable c = Executors.callable(r, one);
611	+	} catch (NullPointerException success) {
612	+	}
613	+	}
614	+
615	+	/**
616	+	* callable(null PrivilegedAction) throws NPE
617	+	*/
618	+	public void testCallableNPE3() {
619	+	try {
620	+	PrivilegedAction r = null;
621	+	Callable c = Executors.callable(r);
622	+	} catch (NullPointerException success) {
623	+	}
624	+	}
625	+
626	+	/**
627	+	* callable(null PrivilegedExceptionAction) throws NPE
628	+	*/
629	+	public void testCallableNPE4() {
630	+	try {
631	+	PrivilegedExceptionAction r = null;
632	+	Callable c = Executors.callable(r);
633	+	} catch (NullPointerException success) {
634	+	}
635	+	}
636
637
638		}

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