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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 1.24 by jsr166, Fri Nov 20 22:58:48 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 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	+	};
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	+	* 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	+	* A newCachedThreadPool with null ThreadFactory throws NPE
88	+	*/
89	+	public void testNewCachedThreadPool3() {
90	+	try {
91	+	ExecutorService e = Executors.newCachedThreadPool(null);
92	+	shouldThrow();
93	+	} catch (NullPointerException success) {}
94	+	}
95
96
97		/**
98	<	*  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
98	>	* A new SingleThreadExecutor can execute runnables
99		*/
100	<	public void testExecute1(){
101	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
102	<	try{
103	<
104	<	for(int i = 0; i < 5; ++i){
105	<	Executors.execute(p, new SleepRun(), Boolean.TRUE);
65	<	}
66	<	fail("should throw");
67	<	} catch(RejectedExecutionException success){}
68	<	p.shutdownNow();
100	>	public void testNewSingleThreadExecutor1() {
101	>	ExecutorService e = Executors.newSingleThreadExecutor();
102	>	e.execute(new NoOpRunnable());
103	>	e.execute(new NoOpRunnable());
104	>	e.execute(new NoOpRunnable());
105	>	joinPool(e);
106		}
107
108		/**
109	<	*  Test to verify execute(Executor, Callable) will throw
110	<	*  RejectedExecutionException Attempting to execute a callable on
111	<	*  a full ThreadPool will cause such an exception here, up to 5
112	<	*  runnables are attempted on a pool capable on handling one
113	<	*  until it throws an exception
114	<	*/
115	<	public void testExecute2(){
116	<	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();
109	>	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
110	>	*/
111	>	public void testNewSingleThreadExecutor2() {
112	>	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
113	>	e.execute(new NoOpRunnable());
114	>	e.execute(new NoOpRunnable());
115	>	e.execute(new NoOpRunnable());
116	>	joinPool(e);
117		}
118
119	+	/**
120	+	* A new SingleThreadExecutor with null ThreadFactory throws NPE
121	+	*/
122	+	public void testNewSingleThreadExecutor3() {
123	+	try {
124	+	ExecutorService e = Executors.newSingleThreadExecutor(null);
125	+	shouldThrow();
126	+	} catch (NullPointerException success) {}
127	+	}
128
129		/**
130	<	*  Test to verify invoke(Executor, Runnable) throws InterruptedException
131	<	*  A single use of invoke starts that will wait long enough
132	<	*  for the invoking thread to be interrupted
133	<	*/
134	<	public void testInvoke2(){
135	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
136	<	Thread t = new Thread(new Runnable() {
137	<	public void run(){
138	<	try{
139	<	Executors.invoke(p,new Runnable(){
140	<	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();
130	>	* A new SingleThreadExecutor cannot be casted to concrete implementation
131	>	*/
132	>	public void testCastNewSingleThreadExecutor() {
133	>	ExecutorService e = Executors.newSingleThreadExecutor();
134	>	try {
135	>	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
136	>	shouldThrow();
137	>	} catch (ClassCastException success) {
138	>	} finally {
139	>	joinPool(e);
140	>	}
141		}
142
143	+
144		/**
145	<	*  Test to verify invoke(Executor, Runnable) will throw
146	<	*  ExecutionException An ExecutionException occurs when the
147	<	*  underlying Runnable throws an exception, here the
148	<	*  DivideByZeroException will cause an ExecutionException
149	<	*/
150	<	public void testInvoke3(){
151	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
152	<	try{
135	<	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");
149	<	}
150	<	p.shutdownNow();
145	>	* A new newFixedThreadPool can execute runnables
146	>	*/
147	>	public void testNewFixedThreadPool1() {
148	>	ExecutorService e = Executors.newFixedThreadPool(2);
149	>	e.execute(new NoOpRunnable());
150	>	e.execute(new NoOpRunnable());
151	>	e.execute(new NoOpRunnable());
152	>	joinPool(e);
153		}
154
155	+	/**
156	+	* A new newFixedThreadPool with given ThreadFactory can execute runnables
157	+	*/
158	+	public void testNewFixedThreadPool2() {
159	+	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
160	+	e.execute(new NoOpRunnable());
161	+	e.execute(new NoOpRunnable());
162	+	e.execute(new NoOpRunnable());
163	+	joinPool(e);
164	+	}
165
166	+	/**
167	+	* A new newFixedThreadPool with null ThreadFactory throws NPE
168	+	*/
169	+	public void testNewFixedThreadPool3() {
170	+	try {
171	+	ExecutorService e = Executors.newFixedThreadPool(2, null);
172	+	shouldThrow();
173	+	} catch (NullPointerException success) {}
174	+	}
175
176		/**
177	<	*  Test to verify invoke(Executor, Callable) throws
178	<	*  InterruptedException A single use of invoke starts that will
179	<	*  wait long enough for the invoking thread to be interrupted
180	<	*/
181	<	public void testInvoke5(){
182	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
183	<
184	<	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	<	};
177	>	* A new newFixedThreadPool with 0 threads throws IAE
178	>	*/
179	>	public void testNewFixedThreadPool4() {
180	>	try {
181	>	ExecutorService e = Executors.newFixedThreadPool(0);
182	>	shouldThrow();
183	>	} catch (IllegalArgumentException success) {}
184	>	}
185
186
187	<
188	<	Thread t = new Thread(new Runnable(){
189	<	public void run(){
190	<	try{
191	<	c.call();
192	<	}catch(Exception e){}
193	<	}
194	<	});
195	<	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();
187	>	/**
188	>	* An unconfigurable newFixedThreadPool can execute runnables
189	>	*/
190	>	public void testunconfigurableExecutorService() {
191	>	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
192	>	e.execute(new NoOpRunnable());
193	>	e.execute(new NoOpRunnable());
194	>	e.execute(new NoOpRunnable());
195	>	joinPool(e);
196		}
197
198		/**
199	<	*  Test to verify invoke(Executor, Callable) will throw ExecutionException
200	<	*  An ExecutionException occurs when the underlying Runnable throws
201	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
202	<	*/
203	<	public void testInvoke6(){
204	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
205	<
204	<	try{
205	<	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();
199	>	* unconfigurableExecutorService(null) throws NPE
200	>	*/
201	>	public void testunconfigurableExecutorServiceNPE() {
202	>	try {
203	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
204	>	shouldThrow();
205	>	} catch (NullPointerException success) {}
206		}
207
208	<	public void testExecuteRunnable () {
208	>	/**
209	>	* unconfigurableScheduledExecutorService(null) throws NPE
210	>	*/
211	>	public void testunconfigurableScheduledExecutorServiceNPE() {
212		try {
213	<	Executor e = new DirectExecutor();
214	<	Task task = new Task();
213	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
214	>	shouldThrow();
215	>	} catch (NullPointerException success) {}
216	>	}
217
228	–	assertFalse("task should not be complete", task.isCompleted());
218
219	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
220	<	String result = future.get();
219	>	/**
220	>	* a newSingleThreadScheduledExecutor successfully runs delayed task
221	>	*/
222	>	public void testNewSingleThreadScheduledExecutor() throws Exception {
223	>	TrackedCallable callable = new TrackedCallable();
224	>	ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
225	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
226	>	assertFalse(callable.done);
227	>	Thread.sleep(MEDIUM_DELAY_MS);
228	>	assertTrue(callable.done);
229	>	assertEquals(Boolean.TRUE, f.get());
230	>	joinPool(p1);
231	>	}
232
233	<	assertTrue("task should be complete", task.isCompleted());
234	<	assertSame("should return test string", TEST_STRING, result);
235	<	}
236	<	catch (ExecutionException ex) {
237	<	fail("Unexpected exception");
233	>	/**
234	>	* a newScheduledThreadPool successfully runs delayed task
235	>	*/
236	>	public void testnewScheduledThreadPool() throws Exception {
237	>	TrackedCallable callable = new TrackedCallable();
238	>	ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
239	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
240	>	assertFalse(callable.done);
241	>	Thread.sleep(MEDIUM_DELAY_MS);
242	>	assertTrue(callable.done);
243	>	assertEquals(Boolean.TRUE, f.get());
244	>	joinPool(p1);
245	>	}
246	>
247	>	/**
248	>	* an unconfigurable newScheduledThreadPool successfully runs delayed task
249	>	*/
250	>	public void testunconfigurableScheduledExecutorService() throws Exception {
251	>	TrackedCallable callable = new TrackedCallable();
252	>	ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
253	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
254	>	assertFalse(callable.done);
255	>	Thread.sleep(MEDIUM_DELAY_MS);
256	>	assertTrue(callable.done);
257	>	assertEquals(Boolean.TRUE, f.get());
258	>	joinPool(p1);
259	>	}
260	>
261	>	/**
262	>	*  timeouts from execute will time out if they compute too long.
263	>	*/
264	>	public void testTimedCallable() throws Exception {
265	>	int N = 10000;
266	>	ExecutorService executor = Executors.newSingleThreadExecutor();
267	>	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
268	>	try {
269	>	long startTime = System.currentTimeMillis();
270	>
271	>	long i = 0;
272	>	while (tasks.size() < N) {
273	>	tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
274	>	i += 10;
275	>	}
276	>
277	>	int iters = 0;
278	>	BigInteger sum = BigInteger.ZERO;
279	>	for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
280	>	try {
281	>	++iters;
282	>	sum = sum.add(it.next().call());
283	>	}
284	>	catch (TimeoutException success) {
285	>	assertTrue(iters > 0);
286	>	return;
287	>	}
288	>	}
289	>	// if by chance we didn't ever time out, total time must be small
290	>	long elapsed = System.currentTimeMillis() - startTime;
291	>	assertTrue(elapsed < N);
292		}
293	<	catch (InterruptedException ex) {
294	<	fail("Unexpected exception");
293	>	finally {
294	>	joinPool(executor);
295		}
296		}
297
298	<	public void testInvokeRunnable () {
298	>
299	>	/**
300	>	* ThreadPoolExecutor using defaultThreadFactory has
301	>	* specified group, priority, daemon status, and name
302	>	*/
303	>	public void testDefaultThreadFactory() throws Exception {
304	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
305	>	Runnable r = new Runnable() {
306	>	public void run() {
307	>	try {
308	>	Thread current = Thread.currentThread();
309	>	threadAssertTrue(!current.isDaemon());
310	>	threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
311	>	ThreadGroup g = current.getThreadGroup();
312	>	SecurityManager s = System.getSecurityManager();
313	>	if (s != null)
314	>	threadAssertTrue(g == s.getThreadGroup());
315	>	else
316	>	threadAssertTrue(g == egroup);
317	>	String name = current.getName();
318	>	threadAssertTrue(name.endsWith("thread-1"));
319	>	} catch (SecurityException ok) {
320	>	// Also pass if not allowed to change setting
321	>	}
322	>	}
323	>	};
324	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
325	>
326	>	e.execute(r);
327		try {
328	<	Executor e = new DirectExecutor();
329	<	Task task = new Task();
328	>	e.shutdown();
329	>	} catch (SecurityException ok) {
330	>	}
331
332	<	assertFalse("task should not be complete", task.isCompleted());
332	>	try {
333	>	Thread.sleep(SHORT_DELAY_MS);
334	>	} finally {
335	>	joinPool(e);
336	>	}
337	>	}
338
339	<	Executors.invoke(e, task);
339	>	/**
340	>	* ThreadPoolExecutor using privilegedThreadFactory has
341	>	* specified group, priority, daemon status, name,
342	>	* access control context and context class loader
343	>	*/
344	>	public void testPrivilegedThreadFactory() throws Exception {
345	>	Policy savedPolicy = null;
346	>	try {
347	>	savedPolicy = Policy.getPolicy();
348	>	AdjustablePolicy policy = new AdjustablePolicy();
349	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
350	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
351	>	Policy.setPolicy(policy);
352	>	} catch (AccessControlException ok) {
353	>	return;
354	>	}
355	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
356	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
357	>	final AccessControlContext thisacc = AccessController.getContext();
358	>	Runnable r = new Runnable() {
359	>	public void run() {
360	>	try {
361	>	Thread current = Thread.currentThread();
362	>	threadAssertTrue(!current.isDaemon());
363	>	threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
364	>	ThreadGroup g = current.getThreadGroup();
365	>	SecurityManager s = System.getSecurityManager();
366	>	if (s != null)
367	>	threadAssertTrue(g == s.getThreadGroup());
368	>	else
369	>	threadAssertTrue(g == egroup);
370	>	String name = current.getName();
371	>	threadAssertTrue(name.endsWith("thread-1"));
372	>	threadAssertTrue(thisccl == current.getContextClassLoader());
373	>	threadAssertTrue(thisacc.equals(AccessController.getContext()));
374	>	} catch (SecurityException ok) {
375	>	// Also pass if not allowed to change settings
376	>	}
377	>	}
378	>	};
379	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
380
381	<	assertTrue("task should be complete", task.isCompleted());
381	>	Policy.setPolicy(savedPolicy);
382	>	e.execute(r);
383	>	try {
384	>	e.shutdown();
385	>	} catch (SecurityException ok) {
386		}
387	<	catch (ExecutionException ex) {
388	<	fail("Unexpected exception");
387	>	try {
388	>	Thread.sleep(SHORT_DELAY_MS);
389	>	} finally {
390	>	joinPool(e);
391	>	}
392	>
393	>	}
394	>
395	>	void checkCCL() {
396	>	SecurityManager sm = System.getSecurityManager();
397	>	if (sm != null) {
398	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
399	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
400		}
401	<	catch (InterruptedException ex) {
402	<	fail("Unexpected exception");
401	>	}
402	>
403	>	class CheckCCL implements Callable<Object> {
404	>	public Object call() {
405	>	checkCCL();
406	>	return null;
407		}
408		}
409
410	<	public void testExecuteCallable () {
410	>
411	>	/**
412	>	* Without class loader permissions, creating
413	>	* privilegedCallableUsingCurrentClassLoader throws ACE
414	>	*/
415	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
416	>	Policy savedPolicy = null;
417		try {
418	<	Executor e = new DirectExecutor();
419	<	Future<String> future = Executors.execute(e, new StringTask());
420	<	String result = future.get();
418	>	savedPolicy = Policy.getPolicy();
419	>	AdjustablePolicy policy = new AdjustablePolicy();
420	>	Policy.setPolicy(policy);
421	>	} catch (AccessControlException ok) {
422	>	return;
423	>	}
424
425	<	assertSame("should return test string", TEST_STRING, result);
425	>	// Check if program still has too many permissions to run test
426	>	try {
427	>	checkCCL();
428	>	// too many privileges to test; so return
429	>	Policy.setPolicy(savedPolicy);
430	>	return;
431	>	} catch (AccessControlException ok) {
432		}
433	<	catch (ExecutionException ex) {
434	<	fail("Unexpected exception");
433	>
434	>	try {
435	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
436	>	shouldThrow();
437	>	} catch (AccessControlException success) {
438	>	} finally {
439	>	Policy.setPolicy(savedPolicy);
440		}
441	<	catch (InterruptedException ex) {
442	<	fail("Unexpected exception");
441	>	}
442	>
443	>	/**
444	>	* With class loader permissions, calling
445	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
446	>	*/
447	>	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
448	>	Policy savedPolicy = null;
449	>	try {
450	>	savedPolicy = Policy.getPolicy();
451	>	AdjustablePolicy policy = new AdjustablePolicy();
452	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
453	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
454	>	Policy.setPolicy(policy);
455	>	} catch (AccessControlException ok) {
456	>	return;
457	>	}
458	>
459	>	try {
460	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
461	>	task.call();
462	>	}
463	>	finally {
464	>	Policy.setPolicy(savedPolicy);
465		}
466		}
467
468	<	public void testInvokeCallable () {
468	>	/**
469	>	* Without permissions, calling privilegedCallable throws ACE
470	>	*/
471	>	public void testprivilegedCallableWithNoPrivs() throws Exception {
472	>	Callable task;
473	>	Policy savedPolicy = null;
474	>	AdjustablePolicy policy = null;
475	>	AccessControlContext noprivAcc = null;
476		try {
477	<	Executor e = new DirectExecutor();
478	<	String result = Executors.invoke(e, new StringTask());
477	>	savedPolicy = Policy.getPolicy();
478	>	policy = new AdjustablePolicy();
479	>	Policy.setPolicy(policy);
480	>	noprivAcc = AccessController.getContext();
481	>	task = Executors.privilegedCallable(new CheckCCL());
482	>	Policy.setPolicy(savedPolicy);
483	>	} catch (AccessControlException ok) {
484	>	return; // program has too few permissions to set up test
485	>	}
486
487	<	assertSame("should return test string", TEST_STRING, result);
487	>	// Make sure that program doesn't have too many permissions
488	>	try {
489	>	AccessController.doPrivileged(new PrivilegedAction() {
490	>	public Object run() {
491	>	checkCCL();
492	>	return null;
493	>	}}, noprivAcc);
494	>	// too many permssions; skip test
495	>	return;
496	>	} catch (AccessControlException ok) {
497		}
498	<	catch (ExecutionException ex) {
499	<	fail("Unexpected exception" );
498	>
499	>	try {
500	>	task.call();
501	>	shouldThrow();
502	>	} catch (AccessControlException success) {}
503	>	}
504	>
505	>	/**
506	>	* With permissions, calling privilegedCallable succeeds
507	>	*/
508	>	public void testprivilegedCallableWithPrivs() throws Exception {
509	>	Policy savedPolicy = null;
510	>	try {
511	>	savedPolicy = Policy.getPolicy();
512	>	AdjustablePolicy policy = new AdjustablePolicy();
513	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
514	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
515	>	Policy.setPolicy(policy);
516	>	} catch (AccessControlException ok) {
517	>	return;
518		}
519	<	catch (InterruptedException ex) {
520	<	fail("Unexpected exception");
519	>
520	>	Callable task = Executors.privilegedCallable(new CheckCCL());
521	>	try {
522	>	task.call();
523	>	} finally {
524	>	Policy.setPolicy(savedPolicy);
525		}
526		}
527
528	<	private static final String TEST_STRING = "a test string";
528	>	/**
529	>	* callable(Runnable) returns null when called
530	>	*/
531	>	public void testCallable1() throws Exception {
532	>	Callable c = Executors.callable(new NoOpRunnable());
533	>	assertNull(c.call());
534	>	}
535	>
536	>	/**
537	>	* callable(Runnable, result) returns result when called
538	>	*/
539	>	public void testCallable2() throws Exception {
540	>	Callable c = Executors.callable(new NoOpRunnable(), one);
541	>	assertEquals(one, c.call());
542	>	}
543
544	<	private static class Task implements Runnable {
545	<	public void run() { completed = true; }
546	<	public boolean isCompleted() { return completed; }
547	<	public void reset() { completed = false; }
548	<	private boolean completed = false;
544	>	/**
545	>	* callable(PrivilegedAction) returns its result when called
546	>	*/
547	>	public void testCallable3() throws Exception {
548	>	Callable c = Executors.callable(new PrivilegedAction() {
549	>	public Object run() { return one; }});
550	>	assertEquals(one, c.call());
551		}
552
553	<	private static class StringTask implements Callable<String> {
554	<	public String call() { return TEST_STRING; }
553	>	/**
554	>	* callable(PrivilegedExceptionAction) returns its result when called
555	>	*/
556	>	public void testCallable4() throws Exception {
557	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
558	>	public Object run() { return one; }});
559	>	assertEquals(one, c.call());
560		}
561
562	<	static class DirectExecutor implements Executor {
563	<	public void execute(Runnable r) {
564	<	r.run();
565	<	}
562	>
563	>	/**
564	>	* callable(null Runnable) throws NPE
565	>	*/
566	>	public void testCallableNPE1() {
567	>	try {
568	>	Callable c = Executors.callable((Runnable) null);
569	>	shouldThrow();
570	>	} catch (NullPointerException success) {}
571	>	}
572	>
573	>	/**
574	>	* callable(null, result) throws NPE
575	>	*/
576	>	public void testCallableNPE2() {
577	>	try {
578	>	Callable c = Executors.callable((Runnable) null, one);
579	>	shouldThrow();
580	>	} catch (NullPointerException success) {}
581	>	}
582	>
583	>	/**
584	>	* callable(null PrivilegedAction) throws NPE
585	>	*/
586	>	public void testCallableNPE3() {
587	>	try {
588	>	Callable c = Executors.callable((PrivilegedAction) null);
589	>	shouldThrow();
590	>	} catch (NullPointerException success) {}
591	>	}
592	>
593	>	/**
594	>	* callable(null PrivilegedExceptionAction) throws NPE
595	>	*/
596	>	public void testCallableNPE4() {
597	>	try {
598	>	Callable c = Executors.callable((PrivilegedExceptionAction) null);
599	>	shouldThrow();
600	>	} catch (NullPointerException success) {}
601		}
602
603

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