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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 1.48 by jsr166, Sat Mar 18 20:42:20 2017 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	>	main(suite(), args);
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	<	}
37	>	/**
38	>	* A newCachedThreadPool can execute runnables
39	>	*/
40	>	public void testNewCachedThreadPool1() {
41	>	final ExecutorService e = Executors.newCachedThreadPool();
42	>	try (PoolCleaner cleaner = cleaner(e)) {
43	>	e.execute(new NoOpRunnable());
44	>	e.execute(new NoOpRunnable());
45	>	e.execute(new NoOpRunnable());
46		}
47		}
37	–
48
49	<	class SleepCall implements Callable {
50	<	public Object call(){
51	<	try{
52	<	Thread.sleep(MEDIUM_DELAY_MS);
53	<	}catch(InterruptedException e){
54	<	fail("unexpected exception");
55	<	}
56	<	return Boolean.TRUE;
49	>	/**
50	>	* A newCachedThreadPool with given ThreadFactory can execute runnables
51	>	*/
52	>	public void testNewCachedThreadPool2() {
53	>	final ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
54	>	try (PoolCleaner cleaner = cleaner(e)) {
55	>	e.execute(new NoOpRunnable());
56	>	e.execute(new NoOpRunnable());
57	>	e.execute(new NoOpRunnable());
58		}
59		}
60
50	–
51	–
61		/**
62	<	*  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
62	>	* A newCachedThreadPool with null ThreadFactory throws NPE
63		*/
64	<	public void testExecute1(){
65	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
66	<	try{
67	<
68	<	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();
64	>	public void testNewCachedThreadPool3() {
65	>	try {
66	>	ExecutorService e = Executors.newCachedThreadPool(null);
67	>	shouldThrow();
68	>	} catch (NullPointerException success) {}
69		}
70
71		/**
72	<	*  Test to verify execute(Executor, Callable) will throw
73	<	*  RejectedExecutionException Attempting to execute a callable on
74	<	*  a full ThreadPool will cause such an exception here, up to 5
75	<	*  runnables are attempted on a pool capable on handling one
76	<	*  until it throws an exception
77	<	*/
78	<	public void testExecute2(){
79	<	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();
72	>	* A new SingleThreadExecutor can execute runnables
73	>	*/
74	>	public void testNewSingleThreadExecutor1() {
75	>	final ExecutorService e = Executors.newSingleThreadExecutor();
76	>	try (PoolCleaner cleaner = cleaner(e)) {
77	>	e.execute(new NoOpRunnable());
78	>	e.execute(new NoOpRunnable());
79	>	e.execute(new NoOpRunnable());
80	>	}
81		}
82
89	–
83		/**
84	<	*  Test to verify invoke(Executor, Runnable) throws InterruptedException
85	<	*  A single use of invoke starts that will wait long enough
86	<	*  for the invoking thread to be interrupted
87	<	*/
88	<	public void testInvoke2(){
89	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
90	<	Thread t = new Thread(new Runnable() {
91	<	public void run(){
92	<	try{
100	<	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");
122	<	}
123	<	p.shutdownNow();
84	>	* A new SingleThreadExecutor with given ThreadFactory can execute runnables
85	>	*/
86	>	public void testNewSingleThreadExecutor2() {
87	>	final ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
88	>	try (PoolCleaner cleaner = cleaner(e)) {
89	>	e.execute(new NoOpRunnable());
90	>	e.execute(new NoOpRunnable());
91	>	e.execute(new NoOpRunnable());
92	>	}
93		}
94
95		/**
96	<	*  Test to verify invoke(Executor, Runnable) will throw
97	<	*  ExecutionException An ExecutionException occurs when the
98	<	*  underlying Runnable throws an exception, here the
99	<	*  DivideByZeroException will cause an ExecutionException
100	<	*/
101	<	public void testInvoke3(){
102	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
134	<	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();
96	>	* A new SingleThreadExecutor with null ThreadFactory throws NPE
97	>	*/
98	>	public void testNewSingleThreadExecutor3() {
99	>	try {
100	>	ExecutorService e = Executors.newSingleThreadExecutor(null);
101	>	shouldThrow();
102	>	} catch (NullPointerException success) {}
103		}
104
105	+	/**
106	+	* A new SingleThreadExecutor cannot be casted to concrete implementation
107	+	*/
108	+	public void testCastNewSingleThreadExecutor() {
109	+	final ExecutorService e = Executors.newSingleThreadExecutor();
110	+	try (PoolCleaner cleaner = cleaner(e)) {
111	+	try {
112	+	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
113	+	shouldThrow();
114	+	} catch (ClassCastException success) {}
115	+	}
116	+	}
117
118	+	/**
119	+	* A new newFixedThreadPool can execute runnables
120	+	*/
121	+	public void testNewFixedThreadPool1() {
122	+	final ExecutorService e = Executors.newFixedThreadPool(2);
123	+	try (PoolCleaner cleaner = cleaner(e)) {
124	+	e.execute(new NoOpRunnable());
125	+	e.execute(new NoOpRunnable());
126	+	e.execute(new NoOpRunnable());
127	+	}
128	+	}
129
130		/**
131	<	*  Test to verify invoke(Executor, Callable) throws
132	<	*  InterruptedException A single use of invoke starts that will
133	<	*  wait long enough for the invoking thread to be interrupted
134	<	*/
135	<	public void testInvoke5(){
136	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
137	<
138	<	final Callable c = new Callable(){
139	<	public Object call(){
140	<	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	<	};
131	>	* A new newFixedThreadPool with given ThreadFactory can execute runnables
132	>	*/
133	>	public void testNewFixedThreadPool2() {
134	>	final ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
135	>	try (PoolCleaner cleaner = cleaner(e)) {
136	>	e.execute(new NoOpRunnable());
137	>	e.execute(new NoOpRunnable());
138	>	e.execute(new NoOpRunnable());
139	>	}
140	>	}
141
142	+	/**
143	+	* A new newFixedThreadPool with null ThreadFactory throws NPE
144	+	*/
145	+	public void testNewFixedThreadPool3() {
146	+	try {
147	+	ExecutorService e = Executors.newFixedThreadPool(2, null);
148	+	shouldThrow();
149	+	} catch (NullPointerException success) {}
150	+	}
151
152	<
153	<	Thread t = new Thread(new Runnable(){
154	<	public void run(){
155	<	try{
156	<	c.call();
157	<	}catch(Exception e){}
158	<	}
159	<	});
184	<	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();
152	>	/**
153	>	* A new newFixedThreadPool with 0 threads throws IAE
154	>	*/
155	>	public void testNewFixedThreadPool4() {
156	>	try {
157	>	ExecutorService e = Executors.newFixedThreadPool(0);
158	>	shouldThrow();
159	>	} catch (IllegalArgumentException success) {}
160		}
161
162		/**
163	<	*  Test to verify invoke(Executor, Callable) will throw ExecutionException
164	<	*  An ExecutionException occurs when the underlying Runnable throws
165	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
166	<	*/
167	<	public void testInvoke6(){
168	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,100L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
169	<
170	<	try{
171	<	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();
163	>	* An unconfigurable newFixedThreadPool can execute runnables
164	>	*/
165	>	public void testUnconfigurableExecutorService() {
166	>	final ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
167	>	try (PoolCleaner cleaner = cleaner(e)) {
168	>	e.execute(new NoOpRunnable());
169	>	e.execute(new NoOpRunnable());
170	>	e.execute(new NoOpRunnable());
171	>	}
172		}
173
174	<	public void testExecuteRunnable () {
174	>	/**
175	>	* unconfigurableExecutorService(null) throws NPE
176	>	*/
177	>	public void testUnconfigurableExecutorServiceNPE() {
178		try {
179	<	Executor e = new DirectExecutor();
180	<	Task task = new Task();
181	<
182	<	assertFalse("task should not be complete", task.isCompleted());
179	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
180	>	shouldThrow();
181	>	} catch (NullPointerException success) {}
182	>	}
183
184	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
185	<	String result = future.get();
184	>	/**
185	>	* unconfigurableScheduledExecutorService(null) throws NPE
186	>	*/
187	>	public void testUnconfigurableScheduledExecutorServiceNPE() {
188	>	try {
189	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
190	>	shouldThrow();
191	>	} catch (NullPointerException success) {}
192	>	}
193
194	<	assertTrue("task should be complete", task.isCompleted());
195	<	assertSame("should return test string", TEST_STRING, result);
194	>	/**
195	>	* a newSingleThreadScheduledExecutor successfully runs delayed task
196	>	*/
197	>	public void testNewSingleThreadScheduledExecutor() throws Exception {
198	>	final ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
199	>	try (PoolCleaner cleaner = cleaner(p)) {
200	>	final CountDownLatch proceed = new CountDownLatch(1);
201	>	final Runnable task = new CheckedRunnable() {
202	>	public void realRun() {
203	>	await(proceed);
204	>	}};
205	>	long startTime = System.nanoTime();
206	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
207	>	timeoutMillis(), MILLISECONDS);
208	>	assertFalse(f.isDone());
209	>	proceed.countDown();
210	>	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
211	>	assertSame(Boolean.TRUE, f.get());
212	>	assertTrue(f.isDone());
213	>	assertFalse(f.isCancelled());
214	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
215		}
216	<	catch (ExecutionException ex) {
217	<	fail("Unexpected exception");
216	>	}
217	>
218	>	/**
219	>	* a newScheduledThreadPool successfully runs delayed task
220	>	*/
221	>	public void testNewScheduledThreadPool() throws Exception {
222	>	final ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
223	>	try (PoolCleaner cleaner = cleaner(p)) {
224	>	final CountDownLatch proceed = new CountDownLatch(1);
225	>	final Runnable task = new CheckedRunnable() {
226	>	public void realRun() {
227	>	await(proceed);
228	>	}};
229	>	long startTime = System.nanoTime();
230	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
231	>	timeoutMillis(), MILLISECONDS);
232	>	assertFalse(f.isDone());
233	>	proceed.countDown();
234	>	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
235	>	assertSame(Boolean.TRUE, f.get());
236	>	assertTrue(f.isDone());
237	>	assertFalse(f.isCancelled());
238	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
239		}
240	<	catch (InterruptedException ex) {
241	<	fail("Unexpected exception");
240	>	}
241	>
242	>	/**
243	>	* an unconfigurable newScheduledThreadPool successfully runs delayed task
244	>	*/
245	>	public void testUnconfigurableScheduledExecutorService() throws Exception {
246	>	final ScheduledExecutorService p =
247	>	Executors.unconfigurableScheduledExecutorService
248	>	(Executors.newScheduledThreadPool(2));
249	>	try (PoolCleaner cleaner = cleaner(p)) {
250	>	final CountDownLatch proceed = new CountDownLatch(1);
251	>	final Runnable task = new CheckedRunnable() {
252	>	public void realRun() {
253	>	await(proceed);
254	>	}};
255	>	long startTime = System.nanoTime();
256	>	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
257	>	timeoutMillis(), MILLISECONDS);
258	>	assertFalse(f.isDone());
259	>	proceed.countDown();
260	>	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
261	>	assertSame(Boolean.TRUE, f.get());
262	>	assertTrue(f.isDone());
263	>	assertFalse(f.isCancelled());
264	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
265		}
266		}
267
268	<	public void testInvokeRunnable () {
269	<	try {
270	<	Executor e = new DirectExecutor();
271	<	Task task = new Task();
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<>();
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	>	assertFalse(current.isDaemon());
310	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
311	>	SecurityManager s = System.getSecurityManager();
312	>	assertSame(current.getThreadGroup(),
313	>	(s == null) ? egroup : s.getThreadGroup());
314	>	assertTrue(current.getName().endsWith("thread-1"));
315	>	} catch (SecurityException ok) {
316	>	// Also pass if not allowed to change setting
317	>	}
318	>	done.countDown();
319	>	}};
320	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
321	>	try (PoolCleaner cleaner = cleaner(e)) {
322	>	e.execute(r);
323	>	await(done);
324	>	}
325	>	}
326
327	<	Executors.invoke(e, task);
327	>	/**
328	>	* ThreadPoolExecutor using privilegedThreadFactory has
329	>	* specified group, priority, daemon status, name,
330	>	* access control context and context class loader
331	>	*/
332	>	public void testPrivilegedThreadFactory() throws Exception {
333	>	final CountDownLatch done = new CountDownLatch(1);
334	>	Runnable r = new CheckedRunnable() {
335	>	public void realRun() throws Exception {
336	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
337	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
338	>	final AccessControlContext thisacc = AccessController.getContext();
339	>	Runnable r = new CheckedRunnable() {
340	>	public void realRun() {
341	>	Thread current = Thread.currentThread();
342	>	assertFalse(current.isDaemon());
343	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
344	>	SecurityManager s = System.getSecurityManager();
345	>	assertSame(current.getThreadGroup(),
346	>	(s == null) ? egroup : s.getThreadGroup());
347	>	assertTrue(current.getName().endsWith("thread-1"));
348	>	assertSame(thisccl, current.getContextClassLoader());
349	>	assertEquals(thisacc, AccessController.getContext());
350	>	done.countDown();
351	>	}};
352	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
353	>	try (PoolCleaner cleaner = cleaner(e)) {
354	>	e.execute(r);
355	>	await(done);
356	>	}
357	>	}};
358
359	<	assertTrue("task should be complete", task.isCompleted());
359	>	runWithPermissions(r,
360	>	new RuntimePermission("getClassLoader"),
361	>	new RuntimePermission("setContextClassLoader"),
362	>	new RuntimePermission("modifyThread"));
363	>	}
364	>
365	>	boolean haveCCLPermissions() {
366	>	SecurityManager sm = System.getSecurityManager();
367	>	if (sm != null) {
368	>	try {
369	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
370	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
371	>	} catch (AccessControlException e) {
372	>	return false;
373	>	}
374		}
375	<	catch (ExecutionException ex) {
376	<	fail("Unexpected exception");
375	>	return true;
376	>	}
377	>
378	>	void checkCCL() {
379	>	SecurityManager sm = System.getSecurityManager();
380	>	if (sm != null) {
381	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
382	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
383		}
384	<	catch (InterruptedException ex) {
385	<	fail("Unexpected exception");
384	>	}
385	>
386	>	class CheckCCL implements Callable<Object> {
387	>	public Object call() {
388	>	checkCCL();
389	>	return null;
390		}
391		}
392
393	<	public void testExecuteCallable () {
394	<	try {
395	<	Executor e = new DirectExecutor();
396	<	Future<String> future = Executors.execute(e, new StringTask());
397	<	String result = future.get();
393	>	/**
394	>	* Without class loader permissions, creating
395	>	* privilegedCallableUsingCurrentClassLoader throws ACE
396	>	*/
397	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
398	>	Runnable r = new CheckedRunnable() {
399	>	public void realRun() throws Exception {
400	>	if (System.getSecurityManager() == null)
401	>	return;
402	>	try {
403	>	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
404	>	shouldThrow();
405	>	} catch (AccessControlException success) {}
406	>	}};
407
408	<	assertSame("should return test string", TEST_STRING, result);
270	<	}
271	<	catch (ExecutionException ex) {
272	<	fail("Unexpected exception");
273	<	}
274	<	catch (InterruptedException ex) {
275	<	fail("Unexpected exception");
276	<	}
408	>	runWithoutPermissions(r);
409		}
410
411	<	public void testInvokeCallable () {
412	<	try {
413	<	Executor e = new DirectExecutor();
414	<	String result = Executors.invoke(e, new StringTask());
411	>	/**
412	>	* With class loader permissions, calling
413	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
414	>	*/
415	>	public void testPrivilegedCallableUsingCCLWithPrivs() throws Exception {
416	>	Runnable r = new CheckedRunnable() {
417	>	public void realRun() throws Exception {
418	>	Executors.privilegedCallableUsingCurrentClassLoader
419	>	(new NoOpCallable())
420	>	.call();
421	>	}};
422	>
423	>	runWithPermissions(r,
424	>	new RuntimePermission("getClassLoader"),
425	>	new RuntimePermission("setContextClassLoader"));
426	>	}
427
428	<	assertSame("should return test string", TEST_STRING, result);
429	<	}
430	<	catch (ExecutionException ex) {
431	<	fail("Unexpected exception" );
432	<	}
433	<	catch (InterruptedException ex) {
434	<	fail("Unexpected exception");
435	<	}
428	>	/**
429	>	* Without permissions, calling privilegedCallable throws ACE
430	>	*/
431	>	public void testPrivilegedCallableWithNoPrivs() throws Exception {
432	>	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
433	>	Executors.privilegedCallable(new CheckCCL());
434	>
435	>	Runnable r = new CheckedRunnable() {
436	>	public void realRun() throws Exception {
437	>	if (System.getSecurityManager() == null)
438	>	return;
439	>	Callable task = Executors.privilegedCallable(new CheckCCL());
440	>	try {
441	>	task.call();
442	>	shouldThrow();
443	>	} catch (AccessControlException success) {}
444	>	}};
445	>
446	>	runWithoutPermissions(r);
447	>
448	>	// It seems rather difficult to test that the
449	>	// AccessControlContext of the privilegedCallable is used
450	>	// instead of its caller.  Below is a failed attempt to do
451	>	// that, which does not work because the AccessController
452	>	// cannot capture the internal state of the current Policy.
453	>	// It would be much more work to differentiate based on,
454	>	// e.g. CodeSource.
455	>
456	>	//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
457	>	//         final Callable[] task = new Callable[1];
458	>
459	>	//         runWithPermissions
460	>	//             (new CheckedRunnable() {
461	>	//                 public void realRun() {
462	>	//                     if (System.getSecurityManager() == null)
463	>	//                         return;
464	>	//                     noprivAcc[0] = AccessController.getContext();
465	>	//                     task[0] = Executors.privilegedCallable(new CheckCCL());
466	>	//                     try {
467	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
468	>	//                                                           public Void run() {
469	>	//                                                               checkCCL();
470	>	//                                                               return null;
471	>	//                                                           }}, noprivAcc[0]);
472	>	//                         shouldThrow();
473	>	//                     } catch (AccessControlException success) {}
474	>	//                 }});
475	>
476	>	//         runWithPermissions
477	>	//             (new CheckedRunnable() {
478	>	//                 public void realRun() throws Exception {
479	>	//                     if (System.getSecurityManager() == null)
480	>	//                         return;
481	>	//                     // Verify that we have an underprivileged ACC
482	>	//                     try {
483	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
484	>	//                                                           public Void run() {
485	>	//                                                               checkCCL();
486	>	//                                                               return null;
487	>	//                                                           }}, noprivAcc[0]);
488	>	//                         shouldThrow();
489	>	//                     } catch (AccessControlException success) {}
490	>
491	>	//                     try {
492	>	//                         task[0].call();
493	>	//                         shouldThrow();
494	>	//                     } catch (AccessControlException success) {}
495	>	//                 }},
496	>	//              new RuntimePermission("getClassLoader"),
497	>	//              new RuntimePermission("setContextClassLoader"));
498	>	}
499	>
500	>	/**
501	>	* With permissions, calling privilegedCallable succeeds
502	>	*/
503	>	public void testPrivilegedCallableWithPrivs() throws Exception {
504	>	Runnable r = new CheckedRunnable() {
505	>	public void realRun() throws Exception {
506	>	Executors.privilegedCallable(new CheckCCL()).call();
507	>	}};
508	>
509	>	runWithPermissions(r,
510	>	new RuntimePermission("getClassLoader"),
511	>	new RuntimePermission("setContextClassLoader"));
512	>	}
513	>
514	>	/**
515	>	* callable(Runnable) returns null when called
516	>	*/
517	>	public void testCallable1() throws Exception {
518	>	Callable c = Executors.callable(new NoOpRunnable());
519	>	assertNull(c.call());
520		}
521
522	<	private static final String TEST_STRING = "a test string";
522	>	/**
523	>	* callable(Runnable, result) returns result when called
524	>	*/
525	>	public void testCallable2() throws Exception {
526	>	Callable c = Executors.callable(new NoOpRunnable(), one);
527	>	assertSame(one, c.call());
528	>	}
529
530	<	private static class Task implements Runnable {
531	<	public void run() { completed = true; }
532	<	public boolean isCompleted() { return completed; }
533	<	public void reset() { completed = false; }
534	<	private boolean completed = false;
530	>	/**
531	>	* callable(PrivilegedAction) returns its result when called
532	>	*/
533	>	public void testCallable3() throws Exception {
534	>	Callable c = Executors.callable(new PrivilegedAction() {
535	>	public Object run() { return one; }});
536	>	assertSame(one, c.call());
537		}
538
539	<	private static class StringTask implements Callable<String> {
540	<	public String call() { return TEST_STRING; }
539	>	/**
540	>	* callable(PrivilegedExceptionAction) returns its result when called
541	>	*/
542	>	public void testCallable4() throws Exception {
543	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
544	>	public Object run() { return one; }});
545	>	assertSame(one, c.call());
546		}
547
548	<	static class DirectExecutor implements Executor {
549	<	public void execute(Runnable r) {
550	<	r.run();
551	<	}
548	>	/**
549	>	* callable(null Runnable) throws NPE
550	>	*/
551	>	public void testCallableNPE1() {
552	>	try {
553	>	Callable c = Executors.callable((Runnable) null);
554	>	shouldThrow();
555	>	} catch (NullPointerException success) {}
556	>	}
557	>
558	>	/**
559	>	* callable(null, result) throws NPE
560	>	*/
561	>	public void testCallableNPE2() {
562	>	try {
563	>	Callable c = Executors.callable((Runnable) null, one);
564	>	shouldThrow();
565	>	} catch (NullPointerException success) {}
566	>	}
567	>
568	>	/**
569	>	* callable(null PrivilegedAction) throws NPE
570	>	*/
571	>	public void testCallableNPE3() {
572	>	try {
573	>	Callable c = Executors.callable((PrivilegedAction) null);
574	>	shouldThrow();
575	>	} catch (NullPointerException success) {}
576		}
577
578	+	/**
579	+	* callable(null PrivilegedExceptionAction) throws NPE
580	+	*/
581	+	public void testCallableNPE4() {
582	+	try {
583	+	Callable c = Executors.callable((PrivilegedExceptionAction) null);
584	+	shouldThrow();
585	+	} catch (NullPointerException success) {}
586	+	}
587
588		}

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