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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 1.44 by jsr166, Sun Feb 22 19:16:12 2015 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/publicdomain/zero/1.0/
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
10
11	<	import junit.framework.*;
12	<	import java.util.*;
13	<	import java.util.concurrent.*;
11	>	import java.security.AccessControlContext;
12	>	import java.security.AccessControlException;
13	>	import java.security.AccessController;
14	>	import java.security.PrivilegedAction;
15	>	import java.security.PrivilegedExceptionAction;
16	>	import java.util.ArrayList;
17	>	import java.util.List;
18	>	import java.util.concurrent.Callable;
19	>	import java.util.concurrent.CountDownLatch;
20	>	import java.util.concurrent.Executors;
21	>	import java.util.concurrent.ExecutorService;
22	>	import java.util.concurrent.Future;
23	>	import java.util.concurrent.ScheduledExecutorService;
24	>	import java.util.concurrent.ThreadPoolExecutor;
25
26	<	public class ExecutorsTest extends TestCase{
27	<
26	>	import junit.framework.Test;
27	>	import junit.framework.TestSuite;
28	>
29	>	public class ExecutorsTest extends JSR166TestCase {
30		public static void main(String[] args) {
31	<	junit.textui.TestRunner.run (suite());
31	>	junit.textui.TestRunner.run(suite());
32		}
18	–
19	–
33		public static Test suite() {
34	<	return new TestSuite(ExecutorsTest.class);
34	>	return new TestSuite(ExecutorsTest.class);
35		}
36
37	<	private static long SHORT_DELAY_MS = 100;
38	<	private static long MEDIUM_DELAY_MS = 1000;
39	<	private static long LONG_DELAY_MS = 10000;
40	<
41	<	class SleepRun implements Runnable {
42	<	public void run() {
43	<	try{
44	<	Thread.sleep(MEDIUM_DELAY_MS);
45	<	} catch(InterruptedException e){
33	<	fail("unexpected exception");
34	<	}
35	<	}
37	>	/**
38	>	* A newCachedThreadPool can execute runnables
39	>	*/
40	>	public void testNewCachedThreadPool1() {
41	>	ExecutorService e = Executors.newCachedThreadPool();
42	>	e.execute(new NoOpRunnable());
43	>	e.execute(new NoOpRunnable());
44	>	e.execute(new NoOpRunnable());
45	>	joinPool(e);
46		}
37	–
47
48	<	class SleepCall implements Callable {
49	<	public Object call(){
50	<	try{
51	<	Thread.sleep(MEDIUM_DELAY_MS);
52	<	}catch(InterruptedException e){
53	<	fail("unexpected exception");
54	<	}
55	<	return Boolean.TRUE;
56	<	}
48	>	/**
49	>	* A newCachedThreadPool with given ThreadFactory can execute runnables
50	>	*/
51	>	public void testNewCachedThreadPool2() {
52	>	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
53	>	e.execute(new NoOpRunnable());
54	>	e.execute(new NoOpRunnable());
55	>	e.execute(new NoOpRunnable());
56	>	joinPool(e);
57		}
58
59	<
59	>	/**
60	>	* A newCachedThreadPool with null ThreadFactory throws NPE
61	>	*/
62	>	public void testNewCachedThreadPool3() {
63	>	try {
64	>	ExecutorService e = Executors.newCachedThreadPool(null);
65	>	shouldThrow();
66	>	} catch (NullPointerException success) {}
67	>	}
68
69		/**
70	<	*  Test to verify execute(Executor, Runnable) will throw
71	<	*  RejectedExecutionException Attempting to execute a runnable on
72	<	*  a full ThreadPool will cause such an exception here, up to 5
73	<	*  runnables are attempted on a pool capable on handling one
74	<	*  until it throws an exception
75	<	*/
76	<	public void testExecute1(){
77	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
61	<	try{
62	<
63	<	for(int i = 0; i < 5; ++i){
64	<	Executors.execute(p, new SleepRun(), Boolean.TRUE);
65	<	}
66	<	fail("should throw");
67	<	} catch(RejectedExecutionException success){}
68	<	p.shutdownNow();
70	>	* A new SingleThreadExecutor can execute runnables
71	>	*/
72	>	public void testNewSingleThreadExecutor1() {
73	>	ExecutorService e = Executors.newSingleThreadExecutor();
74	>	e.execute(new NoOpRunnable());
75	>	e.execute(new NoOpRunnable());
76	>	e.execute(new NoOpRunnable());
77	>	joinPool(e);
78		}
79
80		/**
81	<	*  Test to verify execute(Executor, Callable) will throw
82	<	*  RejectedExecutionException Attempting to execute a callable on
83	<	*  a full ThreadPool will cause such an exception here, up to 5
84	<	*  runnables are attempted on a pool capable on handling one
85	<	*  until it throws an exception
86	<	*/
87	<	public void testExecute2(){
88	<	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();
81	>	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
82	>	*/
83	>	public void testNewSingleThreadExecutor2() {
84	>	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
85	>	e.execute(new NoOpRunnable());
86	>	e.execute(new NoOpRunnable());
87	>	e.execute(new NoOpRunnable());
88	>	joinPool(e);
89		}
90
91	+	/**
92	+	* A new SingleThreadExecutor with null ThreadFactory throws NPE
93	+	*/
94	+	public void testNewSingleThreadExecutor3() {
95	+	try {
96	+	ExecutorService e = Executors.newSingleThreadExecutor(null);
97	+	shouldThrow();
98	+	} catch (NullPointerException success) {}
99	+	}
100
101		/**
102	<	*  Test to verify invoke(Executor, Runnable) throws InterruptedException
103	<	*  A single use of invoke starts that will wait long enough
104	<	*  for the invoking thread to be interrupted
105	<	*/
106	<	public void testInvoke2(){
107	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
108	<	Thread t = new Thread(new Runnable() {
109	<	public void run(){
110	<	try{
111	<	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");
102	>	* A new SingleThreadExecutor cannot be casted to concrete implementation
103	>	*/
104	>	public void testCastNewSingleThreadExecutor() {
105	>	ExecutorService e = Executors.newSingleThreadExecutor();
106	>	try {
107	>	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
108	>	shouldThrow();
109	>	} catch (ClassCastException success) {
110	>	} finally {
111	>	joinPool(e);
112		}
123	–	p.shutdownNow();
113		}
114
115		/**
116	<	*  Test to verify invoke(Executor, Runnable) will throw
117	<	*  ExecutionException An ExecutionException occurs when the
118	<	*  underlying Runnable throws an exception, here the
119	<	*  DivideByZeroException will cause an ExecutionException
120	<	*/
121	<	public void testInvoke3(){
122	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
123	<	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();
116	>	* A new newFixedThreadPool can execute runnables
117	>	*/
118	>	public void testNewFixedThreadPool1() {
119	>	ExecutorService e = Executors.newFixedThreadPool(2);
120	>	e.execute(new NoOpRunnable());
121	>	e.execute(new NoOpRunnable());
122	>	e.execute(new NoOpRunnable());
123	>	joinPool(e);
124		}
125
126	+	/**
127	+	* A new newFixedThreadPool with given ThreadFactory can execute runnables
128	+	*/
129	+	public void testNewFixedThreadPool2() {
130	+	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
131	+	e.execute(new NoOpRunnable());
132	+	e.execute(new NoOpRunnable());
133	+	e.execute(new NoOpRunnable());
134	+	joinPool(e);
135	+	}
136
137	+	/**
138	+	* A new newFixedThreadPool with null ThreadFactory throws NPE
139	+	*/
140	+	public void testNewFixedThreadPool3() {
141	+	try {
142	+	ExecutorService e = Executors.newFixedThreadPool(2, null);
143	+	shouldThrow();
144	+	} catch (NullPointerException success) {}
145	+	}
146
147		/**
148	<	*  Test to verify invoke(Executor, Callable) throws
157	<	*  InterruptedException A single use of invoke starts that will
158	<	*  wait long enough for the invoking thread to be interrupted
148	>	* A new newFixedThreadPool with 0 threads throws IAE
149		*/
150	<	public void testInvoke5(){
151	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
152	<
153	<	final Callable c = new Callable(){
154	<	public Object call(){
155	<	try{
156	<	Executors.invoke(p, new SleepCall());
157	<	fail("should throw");
158	<	}catch(InterruptedException e){}
159	<	catch(RejectedExecutionException e2){}
160	<	catch(ExecutionException e3){}
161	<	return Boolean.TRUE;
162	<	}
163	<	};
150	>	public void testNewFixedThreadPool4() {
151	>	try {
152	>	ExecutorService e = Executors.newFixedThreadPool(0);
153	>	shouldThrow();
154	>	} catch (IllegalArgumentException success) {}
155	>	}
156	>
157	>	/**
158	>	* An unconfigurable newFixedThreadPool can execute runnables
159	>	*/
160	>	public void testUnconfigurableExecutorService() {
161	>	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
162	>	e.execute(new NoOpRunnable());
163	>	e.execute(new NoOpRunnable());
164	>	e.execute(new NoOpRunnable());
165	>	joinPool(e);
166	>	}
167
168	+	/**
169	+	* unconfigurableExecutorService(null) throws NPE
170	+	*/
171	+	public void testUnconfigurableExecutorServiceNPE() {
172	+	try {
173	+	ExecutorService e = Executors.unconfigurableExecutorService(null);
174	+	shouldThrow();
175	+	} catch (NullPointerException success) {}
176	+	}
177
178	<
179	<	Thread t = new Thread(new Runnable(){
180	<	public void run(){
181	<	try{
182	<	c.call();
183	<	}catch(Exception e){}
184	<	}
185	<	});
186	<	try{
187	<	t.start();
188	<	Thread.sleep(SHORT_DELAY_MS);
189	<	t.interrupt();
190	<	t.join();
191	<	}catch(InterruptedException e){
192	<	fail("unexpected exception");
178	>	/**
179	>	* unconfigurableScheduledExecutorService(null) throws NPE
180	>	*/
181	>	public void testUnconfigurableScheduledExecutorServiceNPE() {
182	>	try {
183	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
184	>	shouldThrow();
185	>	} catch (NullPointerException success) {}
186	>	}
187	>
188	>	/**
189	>	* a newSingleThreadScheduledExecutor successfully runs delayed task
190	>	*/
191	>	public void testNewSingleThreadScheduledExecutor() throws Exception {
192	>	ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
193	>	try {
194	>	final CountDownLatch proceed = new CountDownLatch(1);
195	>	final Runnable task = new CheckedRunnable() {
196	>	public void realRun() {
197	>	await(proceed);
198	>	}};
199	>	long startTime = System.nanoTime();
200	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
201	>	timeoutMillis(), MILLISECONDS);
202	>	assertFalse(f.isDone());
203	>	proceed.countDown();
204	>	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
205	>	assertSame(Boolean.TRUE, f.get());
206	>	assertTrue(f.isDone());
207	>	assertFalse(f.isCancelled());
208	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
209	>	} finally {
210	>	joinPool(p);
211		}
192	–
193	–	p.shutdownNow();
212		}
213
214		/**
215	<	*  Test to verify invoke(Executor, Callable) will throw ExecutionException
216	<	*  An ExecutionException occurs when the underlying Runnable throws
217	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
218	<	*/
219	<	public void testInvoke6(){
220	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
221	<
222	<	try{
223	<	Callable c = new Callable(){
224	<	public Object call(){
225	<	int i = 5/0;
226	<	return Boolean.TRUE;
227	<	}
228	<	};
229	<
230	<	for(int i =0; i < 5; i++){
231	<	Executors.invoke(p,c);
232	<	}
233	<
234	<	fail("should throw");
235	<	}catch(RejectedExecutionException e){}
236	<	catch(InterruptedException e2){}
237	<	catch(ExecutionException e3){}
220	<	p.shutdownNow();
215	>	* a newScheduledThreadPool successfully runs delayed task
216	>	*/
217	>	public void testNewScheduledThreadPool() throws Exception {
218	>	ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
219	>	try {
220	>	final CountDownLatch proceed = new CountDownLatch(1);
221	>	final Runnable task = new CheckedRunnable() {
222	>	public void realRun() {
223	>	await(proceed);
224	>	}};
225	>	long startTime = System.nanoTime();
226	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
227	>	timeoutMillis(), MILLISECONDS);
228	>	assertFalse(f.isDone());
229	>	proceed.countDown();
230	>	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
231	>	assertSame(Boolean.TRUE, f.get());
232	>	assertTrue(f.isDone());
233	>	assertFalse(f.isCancelled());
234	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
235	>	} finally {
236	>	joinPool(p);
237	>	}
238		}
239
240	<	public void testExecuteRunnable () {
240	>	/**
241	>	* an unconfigurable newScheduledThreadPool successfully runs delayed task
242	>	*/
243	>	public void testUnconfigurableScheduledExecutorService() throws Exception {
244	>	ScheduledExecutorService p =
245	>	Executors.unconfigurableScheduledExecutorService
246	>	(Executors.newScheduledThreadPool(2));
247		try {
248	<	Executor e = new DirectExecutor();
249	<	Task task = new Task();
248	>	final CountDownLatch proceed = new CountDownLatch(1);
249	>	final Runnable task = new CheckedRunnable() {
250	>	public void realRun() {
251	>	await(proceed);
252	>	}};
253	>	long startTime = System.nanoTime();
254	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
255	>	timeoutMillis(), MILLISECONDS);
256	>	assertFalse(f.isDone());
257	>	proceed.countDown();
258	>	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
259	>	assertSame(Boolean.TRUE, f.get());
260	>	assertTrue(f.isDone());
261	>	assertFalse(f.isCancelled());
262	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
263	>	} finally {
264	>	joinPool(p);
265	>	}
266	>	}
267	>
268	>	/**
269	>	* Future.get on submitted tasks will time out if they compute too long.
270	>	*/
271	>	public void testTimedCallable() throws Exception {
272	>	final ExecutorService[] executors = {
273	>	Executors.newSingleThreadExecutor(),
274	>	Executors.newCachedThreadPool(),
275	>	Executors.newFixedThreadPool(2),
276	>	Executors.newScheduledThreadPool(2),
277	>	};
278	>
279	>	final Runnable sleeper = new CheckedInterruptedRunnable() {
280	>	public void realRun() throws InterruptedException {
281	>	delay(LONG_DELAY_MS);
282	>	}};
283	>
284	>	List<Thread> threads = new ArrayList<Thread>();
285	>	for (final ExecutorService executor : executors) {
286	>	threads.add(newStartedThread(new CheckedRunnable() {
287	>	public void realRun() {
288	>	Future future = executor.submit(sleeper);
289	>	assertFutureTimesOut(future);
290	>	}}));
291	>	}
292	>	for (Thread thread : threads)
293	>	awaitTermination(thread);
294	>	for (ExecutorService executor : executors)
295	>	joinPool(executor);
296	>	}
297
298	<	assertFalse("task should not be complete", task.isCompleted());
298	>	/**
299	>	* ThreadPoolExecutor using defaultThreadFactory has
300	>	* specified group, priority, daemon status, and name
301	>	*/
302	>	public void testDefaultThreadFactory() throws Exception {
303	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
304	>	final CountDownLatch done = new CountDownLatch(1);
305	>	Runnable r = new CheckedRunnable() {
306	>	public void realRun() {
307	>	try {
308	>	Thread current = Thread.currentThread();
309	>	assertTrue(!current.isDaemon());
310	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
311	>	ThreadGroup g = current.getThreadGroup();
312	>	SecurityManager s = System.getSecurityManager();
313	>	if (s != null)
314	>	assertTrue(g == s.getThreadGroup());
315	>	else
316	>	assertTrue(g == egroup);
317	>	String name = current.getName();
318	>	assertTrue(name.endsWith("thread-1"));
319	>	} catch (SecurityException ok) {
320	>	// Also pass if not allowed to change setting
321	>	}
322	>	done.countDown();
323	>	}};
324	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
325
326	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
327	<	String result = future.get();
326	>	e.execute(r);
327	>	await(done);
328
329	<	assertTrue("task should be complete", task.isCompleted());
330	<	assertSame("should return test string", TEST_STRING, result);
329	>	try {
330	>	e.shutdown();
331	>	} catch (SecurityException ok) {
332		}
333	<	catch (ExecutionException ex) {
334	<	fail("Unexpected exception");
333	>
334	>	joinPool(e);
335	>	}
336	>
337	>	/**
338	>	* ThreadPoolExecutor using privilegedThreadFactory has
339	>	* specified group, priority, daemon status, name,
340	>	* access control context and context class loader
341	>	*/
342	>	public void testPrivilegedThreadFactory() throws Exception {
343	>	final CountDownLatch done = new CountDownLatch(1);
344	>	Runnable r = new CheckedRunnable() {
345	>	public void realRun() throws Exception {
346	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
347	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
348	>	final AccessControlContext thisacc = AccessController.getContext();
349	>	Runnable r = new CheckedRunnable() {
350	>	public void realRun() {
351	>	Thread current = Thread.currentThread();
352	>	assertTrue(!current.isDaemon());
353	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
354	>	ThreadGroup g = current.getThreadGroup();
355	>	SecurityManager s = System.getSecurityManager();
356	>	if (s != null)
357	>	assertTrue(g == s.getThreadGroup());
358	>	else
359	>	assertTrue(g == egroup);
360	>	String name = current.getName();
361	>	assertTrue(name.endsWith("thread-1"));
362	>	assertSame(thisccl, current.getContextClassLoader());
363	>	assertEquals(thisacc, AccessController.getContext());
364	>	done.countDown();
365	>	}};
366	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
367	>	e.execute(r);
368	>	await(done);
369	>	e.shutdown();
370	>	joinPool(e);
371	>	}};
372	>
373	>	runWithPermissions(r,
374	>	new RuntimePermission("getClassLoader"),
375	>	new RuntimePermission("setContextClassLoader"),
376	>	new RuntimePermission("modifyThread"));
377	>	}
378	>
379	>	boolean haveCCLPermissions() {
380	>	SecurityManager sm = System.getSecurityManager();
381	>	if (sm != null) {
382	>	try {
383	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
384	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
385	>	} catch (AccessControlException e) {
386	>	return false;
387	>	}
388		}
389	<	catch (InterruptedException ex) {
390	<	fail("Unexpected exception");
389	>	return true;
390	>	}
391	>
392	>	void checkCCL() {
393	>	SecurityManager sm = System.getSecurityManager();
394	>	if (sm != null) {
395	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
396	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
397		}
398		}
399
400	<	public void testInvokeRunnable () {
401	<	try {
402	<	Executor e = new DirectExecutor();
403	<	Task task = new Task();
400	>	class CheckCCL implements Callable<Object> {
401	>	public Object call() {
402	>	checkCCL();
403	>	return null;
404	>	}
405	>	}
406
407	<	assertFalse("task should not be complete", task.isCompleted());
407	>	/**
408	>	* Without class loader permissions, creating
409	>	* privilegedCallableUsingCurrentClassLoader throws ACE
410	>	*/
411	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
412	>	Runnable r = new CheckedRunnable() {
413	>	public void realRun() throws Exception {
414	>	if (System.getSecurityManager() == null)
415	>	return;
416	>	try {
417	>	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
418	>	shouldThrow();
419	>	} catch (AccessControlException success) {}
420	>	}};
421
422	<	Executors.invoke(e, task);
422	>	runWithoutPermissions(r);
423	>	}
424
425	<	assertTrue("task should be complete", task.isCompleted());
426	<	}
427	<	catch (ExecutionException ex) {
428	<	fail("Unexpected exception");
429	<	}
430	<	catch (InterruptedException ex) {
431	<	fail("Unexpected exception");
432	<	}
425	>	/**
426	>	* With class loader permissions, calling
427	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
428	>	*/
429	>	public void testPrivilegedCallableUsingCCLWithPrivs() throws Exception {
430	>	Runnable r = new CheckedRunnable() {
431	>	public void realRun() throws Exception {
432	>	Executors.privilegedCallableUsingCurrentClassLoader
433	>	(new NoOpCallable())
434	>	.call();
435	>	}};
436	>
437	>	runWithPermissions(r,
438	>	new RuntimePermission("getClassLoader"),
439	>	new RuntimePermission("setContextClassLoader"));
440		}
441
442	<	public void testExecuteCallable () {
443	<	try {
444	<	Executor e = new DirectExecutor();
445	<	Future<String> future = Executors.execute(e, new StringTask());
446	<	String result = future.get();
442	>	/**
443	>	* Without permissions, calling privilegedCallable throws ACE
444	>	*/
445	>	public void testPrivilegedCallableWithNoPrivs() throws Exception {
446	>	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
447	>	Executors.privilegedCallable(new CheckCCL());
448	>
449	>	Runnable r = new CheckedRunnable() {
450	>	public void realRun() throws Exception {
451	>	if (System.getSecurityManager() == null)
452	>	return;
453	>	Callable task = Executors.privilegedCallable(new CheckCCL());
454	>	try {
455	>	task.call();
456	>	shouldThrow();
457	>	} catch (AccessControlException success) {}
458	>	}};
459	>
460	>	runWithoutPermissions(r);
461	>
462	>	// It seems rather difficult to test that the
463	>	// AccessControlContext of the privilegedCallable is used
464	>	// instead of its caller.  Below is a failed attempt to do
465	>	// that, which does not work because the AccessController
466	>	// cannot capture the internal state of the current Policy.
467	>	// It would be much more work to differentiate based on,
468	>	// e.g. CodeSource.
469	>
470	>	//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
471	>	//         final Callable[] task = new Callable[1];
472	>
473	>	//         runWithPermissions
474	>	//             (new CheckedRunnable() {
475	>	//                 public void realRun() {
476	>	//                     if (System.getSecurityManager() == null)
477	>	//                         return;
478	>	//                     noprivAcc[0] = AccessController.getContext();
479	>	//                     task[0] = Executors.privilegedCallable(new CheckCCL());
480	>	//                     try {
481	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
482	>	//                                                           public Void run() {
483	>	//                                                               checkCCL();
484	>	//                                                               return null;
485	>	//                                                           }}, noprivAcc[0]);
486	>	//                         shouldThrow();
487	>	//                     } catch (AccessControlException success) {}
488	>	//                 }});
489	>
490	>	//         runWithPermissions
491	>	//             (new CheckedRunnable() {
492	>	//                 public void realRun() throws Exception {
493	>	//                     if (System.getSecurityManager() == null)
494	>	//                         return;
495	>	//                     // Verify that we have an underprivileged ACC
496	>	//                     try {
497	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
498	>	//                                                           public Void run() {
499	>	//                                                               checkCCL();
500	>	//                                                               return null;
501	>	//                                                           }}, noprivAcc[0]);
502	>	//                         shouldThrow();
503	>	//                     } catch (AccessControlException success) {}
504	>
505	>	//                     try {
506	>	//                         task[0].call();
507	>	//                         shouldThrow();
508	>	//                     } catch (AccessControlException success) {}
509	>	//                 }},
510	>	//              new RuntimePermission("getClassLoader"),
511	>	//              new RuntimePermission("setContextClassLoader"));
512	>	}
513
514	<	assertSame("should return test string", TEST_STRING, result);
515	<	}
516	<	catch (ExecutionException ex) {
517	<	fail("Unexpected exception");
518	<	}
519	<	catch (InterruptedException ex) {
520	<	fail("Unexpected exception");
521	<	}
514	>	/**
515	>	* With permissions, calling privilegedCallable succeeds
516	>	*/
517	>	public void testPrivilegedCallableWithPrivs() throws Exception {
518	>	Runnable r = new CheckedRunnable() {
519	>	public void realRun() throws Exception {
520	>	Executors.privilegedCallable(new CheckCCL()).call();
521	>	}};
522	>
523	>	runWithPermissions(r,
524	>	new RuntimePermission("getClassLoader"),
525	>	new RuntimePermission("setContextClassLoader"));
526		}
527
528	<	public void testInvokeCallable () {
529	<	try {
530	<	Executor e = new DirectExecutor();
531	<	String result = Executors.invoke(e, new StringTask());
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	<	assertSame("should return test string", TEST_STRING, result);
537	<	}
538	<	catch (ExecutionException ex) {
539	<	fail("Unexpected exception" );
540	<	}
541	<	catch (InterruptedException ex) {
542	<	fail("Unexpected exception");
543	<	}
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	>	assertSame(one, c.call());
542	>	}
543	>
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	>	assertSame(one, c.call());
551		}
552
553	<	private static final String TEST_STRING = "a 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	>	assertSame(one, c.call());
560	>	}
561
562	<	private static class Task implements Runnable {
563	<	public void run() { completed = true; }
564	<	public boolean isCompleted() { return completed; }
565	<	public void reset() { completed = false; }
566	<	private boolean completed = false;
562	>	/**
563	>	* callable(null Runnable) throws NPE
564	>	*/
565	>	public void testCallableNPE1() {
566	>	try {
567	>	Callable c = Executors.callable((Runnable) null);
568	>	shouldThrow();
569	>	} catch (NullPointerException success) {}
570		}
571
572	<	private static class StringTask implements Callable<String> {
573	<	public String call() { return TEST_STRING; }
572	>	/**
573	>	* callable(null, result) throws NPE
574	>	*/
575	>	public void testCallableNPE2() {
576	>	try {
577	>	Callable c = Executors.callable((Runnable) null, one);
578	>	shouldThrow();
579	>	} catch (NullPointerException success) {}
580		}
581
582	<	static class DirectExecutor implements Executor {
583	<	public void execute(Runnable r) {
584	<	r.run();
585	<	}
582	>	/**
583	>	* callable(null PrivilegedAction) throws NPE
584	>	*/
585	>	public void testCallableNPE3() {
586	>	try {
587	>	Callable c = Executors.callable((PrivilegedAction) null);
588	>	shouldThrow();
589	>	} catch (NullPointerException success) {}
590		}
591
592	+	/**
593	+	* callable(null PrivilegedExceptionAction) throws NPE
594	+	*/
595	+	public void testCallableNPE4() {
596	+	try {
597	+	Callable c = Executors.callable((PrivilegedExceptionAction) null);
598	+	shouldThrow();
599	+	} catch (NullPointerException success) {}
600	+	}
601
602		}

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