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

Comparing jsr166/src/test/tck/ExecutorsTest.java (file contents):
Revision 1.4 by dl, Sat Sep 20 18:20:07 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.*;
14	<	import java.math.BigInteger;
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 JSR166TestCase{
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		}
33		public static Test suite() {
34	<	return new TestSuite(ExecutorsTest.class);
34	>	return new TestSuite(ExecutorsTest.class);
35		}
36
37	<	private static final String TEST_STRING = "a test string";
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	>	}
48
49	<	private static class MyTask implements Runnable {
50	<	public void run() { completed = true; }
51	<	public boolean isCompleted() { return completed; }
52	<	public void reset() { completed = false; }
53	<	private boolean completed = false;
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
61	<	private static class StringTask implements Callable<String> {
62	<	public String call() { return TEST_STRING; }
61	>	/**
62	>	* A newCachedThreadPool with null ThreadFactory throws NPE
63	>	*/
64	>	public void testNewCachedThreadPool3() {
65	>	try {
66	>	ExecutorService e = Executors.newCachedThreadPool(null);
67	>	shouldThrow();
68	>	} catch (NullPointerException success) {}
69		}
70
71	<	static class DirectExecutor implements Executor {
72	<	public void execute(Runnable r) {
73	<	r.run();
71	>	/**
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
83	<	static class TimedCallable<T> implements Callable<T> {
84	<	private final Executor exec;
85	<	private final Callable<T> func;
86	<	private final long msecs;
87	<
88	<	TimedCallable(Executor exec, Callable<T> func, long msecs) {
89	<	this.exec = exec;
90	<	this.func = func;
91	<	this.msecs = msecs;
83	>	/**
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	<	public T call() throws Exception {
95	<	Future<T> ftask = Executors.execute(exec, func);
93	>	}
94	>
95	>	/**
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	<	return ftask.get(msecs, TimeUnit.MILLISECONDS);
113	<	} finally {
114	<	ftask.cancel(true);
59	<	}
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	<	private static class Fib implements Callable<BigInteger> {
131	<	private final BigInteger n;
132	<	Fib(long n) {
133	<	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
134	<	this.n = BigInteger.valueOf(n);
135	<	}
136	<	public BigInteger call() {
137	<	BigInteger f1 = BigInteger.ONE;
138	<	BigInteger f2 = f1;
73	<	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
74	<	BigInteger t = f1.add(f2);
75	<	f1 = f2;
76	<	f2 = t;
77	<	}
78	<	return f1;
130	>	/**
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	<	};
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	+	* 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	+	* 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		/**
175	<	*   execute(Executor, Runnable) will throw
86	<	*  RejectedExecutionException Attempting to execute a runnable on
87	<	*  a full ThreadPool will cause such an exception here, up to 5
88	<	*  runnables are attempted on a pool capable on handling one
89	<	*  until it throws an exception
175	>	* unconfigurableExecutorService(null) throws NPE
176		*/
177	<	public void testExecute1() {
92	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
177	>	public void testUnconfigurableExecutorServiceNPE() {
178		try {
179	<
95	<	for(int i = 0; i < 5; ++i){
96	<	Executors.execute(p, new MediumRunnable(), Boolean.TRUE);
97	<	}
179	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
180		shouldThrow();
181	<	} catch(RejectedExecutionException success){}
100	<	joinPool(p);
181	>	} catch (NullPointerException success) {}
182		}
183
184		/**
185	<	*   execute(Executor, Callable) will throw
105	<	*  RejectedExecutionException Attempting to execute a callable on
106	<	*  a full ThreadPool will cause such an exception here, up to 5
107	<	*  runnables are attempted on a pool capable on handling one
108	<	*  until it throws an exception
185	>	* unconfigurableScheduledExecutorService(null) throws NPE
186		*/
187	<	public void testExecute2() {
111	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
187	>	public void testUnconfigurableScheduledExecutorServiceNPE() {
188		try {
189	<	for(int i = 0; i < 5; ++i) {
114	<	Executors.execute(p, new SmallCallable());
115	<	}
189	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
190		shouldThrow();
191	<	} catch(RejectedExecutionException e){}
118	<	joinPool(p);
191	>	} catch (NullPointerException success) {}
192		}
193
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	+	}
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	+	}
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	+	/**
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		/**
299	<	*   invoke(Executor, Runnable) throws InterruptedException
300	<	*  A single use of invoke starts that will wait long enough
301	<	*  for the invoking thread to be interrupted
302	<	*/
303	<	public void testInvoke2() {
304	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
305	<	Thread t = new Thread(new Runnable() {
306	<	public void run() {
307	<	try {
308	<	Executors.invoke(p,new Runnable() {
309	<	public void run() {
310	<	try {
311	<	Thread.sleep(MEDIUM_DELAY_MS);
312	<	shouldThrow();
313	<	} catch(InterruptedException e){
314	<	}
315	<	}
316	<	});
141	<	} catch(InterruptedException success){
142	<	} catch(Exception e) {
143	<	unexpectedException();
144	<	}
145	<
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	<	});
319	<	try {
320	<	t.start();
321	<	Thread.sleep(SHORT_DELAY_MS);
322	<	t.interrupt();
323	<	} catch(Exception e){
153	<	unexpectedException();
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		}
155	–	joinPool(p);
325		}
326
327		/**
328	<	*   invoke(Executor, Runnable) will throw
329	<	*  ExecutionException An ExecutionException occurs when the
330	<	*  underlying Runnable throws an exception, here the
331	<	*  DivideByZeroException will cause an ExecutionException
332	<	*/
333	<	public void testInvoke3() {
334	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
335	<	try {
336	<	Runnable r = new Runnable() {
337	<	public void run() {
338	<	int i = 5/0;
339	<	}
340	<	};
341	<
342	<	for(int i =0; i < 5; i++){
343	<	Executors.invoke(p,r);
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	>	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		}
176	–
177	–	shouldThrow();
178	–	} catch(ExecutionException success){
179	–	} catch(Exception e){
180	–	unexpectedException();
374		}
375	<	joinPool(p);
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	+	}
385
386	+	class CheckCCL implements Callable<Object> {
387	+	public Object call() {
388	+	checkCCL();
389	+	return null;
390	+	}
391	+	}
392
393		/**
394	<	*   invoke(Executor, Callable) throws
395	<	*  InterruptedException A single use of invoke starts that will
190	<	*  wait long enough for the invoking thread to be interrupted
394	>	* Without class loader permissions, creating
395	>	* privilegedCallableUsingCurrentClassLoader throws ACE
396		*/
397	<	public void testInvoke5() {
398	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
399	<
400	<	final Callable c = new Callable() {
401	<	public Object call() {
402	<	try {
403	<	Executors.invoke(p, new SmallCallable());
404	<	shouldThrow();
405	<	} catch(InterruptedException e){}
406	<	catch(RejectedExecutionException e2){}
202	<	catch(ExecutionException e3){}
203	<	return Boolean.TRUE;
204	<	}
205	<	};
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	+	runWithoutPermissions(r);
409	+	}
410
411	<
412	<	Thread t = new Thread(new Runnable() {
413	<	public void run() {
414	<	try {
415	<	c.call();
416	<	} catch(Exception e){}
417	<	}
418	<	});
419	<	try {
420	<	t.start();
421	<	Thread.sleep(SHORT_DELAY_MS);
422	<	t.interrupt();
423	<	t.join();
424	<	} catch(InterruptedException e){
425	<	unexpectedException();
223	<	}
224	<
225	<	joinPool(p);
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		/**
429	<	*   invoke(Executor, Callable) will throw ExecutionException
230	<	*  An ExecutionException occurs when the underlying Runnable throws
231	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
429	>	* Without permissions, calling privilegedCallable throws ACE
430		*/
431	<	public void testInvoke6() {
432	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
431	>	public void testPrivilegedCallableWithNoPrivs() throws Exception {
432	>	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
433	>	Executors.privilegedCallable(new CheckCCL());
434
435	<	try {
436	<	Callable c = new Callable() {
437	<	public Object call() {
438	<	int i = 5/0;
439	<	return Boolean.TRUE;
440	<	}
441	<	};
442	<
443	<	for(int i =0; i < 5; i++){
444	<	Executors.invoke(p,c);
445	<	}
446	<
447	<	shouldThrow();
448	<	} catch(RejectedExecutionException e){}
449	<	catch(InterruptedException e2){}
450	<	catch(ExecutionException e3){}
451	<	joinPool(p);
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	<	*
501	>	* With permissions, calling privilegedCallable succeeds
502		*/
503	<	public void testExecuteRunnable () {
504	<	try {
505	<	Executor e = new DirectExecutor();
506	<	MyTask task = new MyTask();
507	<	assertFalse(task.isCompleted());
508	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
509	<	String result = future.get();
510	<	assertTrue(task.isCompleted());
511	<	assertSame(TEST_STRING, result);
267	<	}
268	<	catch (ExecutionException ex) {
269	<	unexpectedException();
270	<	}
271	<	catch (InterruptedException ex) {
272	<	unexpectedException();
273	<	}
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	<	*
515	>	* callable(Runnable) returns null when called
516		*/
517	<	public void testInvokeRunnable () {
518	<	try {
519	<	Executor e = new DirectExecutor();
282	<	MyTask task = new MyTask();
283	<	assertFalse(task.isCompleted());
284	<	Executors.invoke(e, task);
285	<	assertTrue(task.isCompleted());
286	<	}
287	<	catch (ExecutionException ex) {
288	<	unexpectedException();
289	<	}
290	<	catch (InterruptedException ex) {
291	<	unexpectedException();
292	<	}
517	>	public void testCallable1() throws Exception {
518	>	Callable c = Executors.callable(new NoOpRunnable());
519	>	assertNull(c.call());
520		}
521
522		/**
523	<	*
523	>	* callable(Runnable, result) returns result when called
524		*/
525	<	public void testExecuteCallable () {
526	<	try {
527	<	Executor e = new DirectExecutor();
301	<	Future<String> future = Executors.execute(e, new StringTask());
302	<	String result = future.get();
303	<	assertSame(TEST_STRING, result);
304	<	}
305	<	catch (ExecutionException ex) {
306	<	unexpectedException();
307	<	}
308	<	catch (InterruptedException ex) {
309	<	unexpectedException();
310	<	}
525	>	public void testCallable2() throws Exception {
526	>	Callable c = Executors.callable(new NoOpRunnable(), one);
527	>	assertSame(one, c.call());
528		}
529
530		/**
531	<	*
531	>	* callable(PrivilegedAction) returns its result when called
532		*/
533	<	public void testInvokeCallable () {
534	<	try {
535	<	Executor e = new DirectExecutor();
536	<	String result = Executors.invoke(e, new StringTask());
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	<	assertSame(TEST_STRING, result);
540	<	}
541	<	catch (ExecutionException ex) {
542	<	unexpectedException();
543	<	}
544	<	catch (InterruptedException ex) {
545	<	unexpectedException();
328	<	}
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		/**
549	<	*  timeouts from execute will time out if they compute too long.
549	>	* callable(null Runnable) throws NPE
550		*/
551	<	public void testTimedCallable() {
335	<	int N = 10000;
336	<	ExecutorService executor = Executors.newSingleThreadExecutor();
337	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
551	>	public void testCallableNPE1() {
552		try {
553	<	long startTime = System.currentTimeMillis();
554	<
555	<	long i = 0;
342	<	while (tasks.size() < N) {
343	<	tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
344	<	i += 10;
345	<	}
346	<
347	<	int iters = 0;
348	<	BigInteger sum = BigInteger.ZERO;
349	<	for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
350	<	try {
351	<	++iters;
352	<	sum = sum.add(it.next().call());
353	<	}
354	<	catch (TimeoutException success) {
355	<	assertTrue(iters > 0);
356	<	return;
357	<	}
358	<	catch (Exception e) {
359	<	unexpectedException();
360	<	}
361	<	}
362	<	// if by chance we didn't ever time out, total time must be small
363	<	long elapsed = System.currentTimeMillis() - startTime;
364	<	assertTrue(elapsed < N);
365	<	}
366	<	finally {
367	<	joinPool(executor);
368	<	}
553	>	Callable c = Executors.callable((Runnable) null);
554	>	shouldThrow();
555	>	} catch (NullPointerException success) {}
556		}
557
558	<
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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