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

Comparing jsr166/src/test/tck/ExecutorsTest.java (file contents):
Revision 1.3 by dl, Sun Sep 14 20:42:40 2003 UTC vs.
Revision 1.43 by jsr166, Wed Dec 31 19:05:42 2014 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	>	junit.textui.TestRunner.run(suite());
32		}
19	–
20	–
33		public static Test suite() {
34	<	return new TestSuite(ExecutorsTest.class);
34	>	return new TestSuite(ExecutorsTest.class);
35		}
36
37		/**
38	<	*   execute(Executor, Runnable) will throw
39	<	*  RejectedExecutionException Attempting to execute a runnable on
40	<	*  a full ThreadPool will cause such an exception here, up to 5
41	<	*  runnables are attempted on a pool capable on handling one
42	<	*  until it throws an exception
43	<	*/
44	<	public void testExecute1(){
45	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
34	<	try{
35	<
36	<	for(int i = 0; i < 5; ++i){
37	<	Executors.execute(p, new MediumRunnable(), Boolean.TRUE);
38	<	}
39	<	fail("should throw");
40	<	} catch(RejectedExecutionException success){}
41	<	joinPool(p);
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		}
47
48		/**
49	<	*   execute(Executor, Callable) will throw
50	<	*  RejectedExecutionException Attempting to execute a callable on
51	<	*  a full ThreadPool will cause such an exception here, up to 5
52	<	*  runnables are attempted on a pool capable on handling one
53	<	*  until it throws an exception
54	<	*/
55	<	public void testExecute2(){
56	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
53	<	try{
54	<	for(int i = 0; i < 5; ++i) {
55	<	Executors.execute(p, new SmallCallable());
56	<	}
57	<	fail("should throw");
58	<	}catch(RejectedExecutionException e){}
59	<	joinPool(p);
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
62	–
59		/**
60	<	*   invoke(Executor, Runnable) throws InterruptedException
61	<	*  A single use of invoke starts that will wait long enough
62	<	*  for the invoking thread to be interrupted
63	<	*/
64	<	public void testInvoke2(){
65	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
66	<	Thread t = new Thread(new Runnable() {
71	<	public void run(){
72	<	try{
73	<	Executors.invoke(p,new Runnable(){
74	<	public void run(){
75	<	try{
76	<	Thread.sleep(MEDIUM_DELAY_MS);
77	<	fail("should throw");
78	<	}catch(InterruptedException e){
79	<	}
80	<	}
81	<	});
82	<	} catch(InterruptedException success){
83	<	} catch(Exception e) {
84	<	fail("unexpected exception");
85	<	}
86	<
87	<	}
88	<	});
89	<	try{
90	<	t.start();
91	<	Thread.sleep(SHORT_DELAY_MS);
92	<	t.interrupt();
93	<	}catch(Exception e){
94	<	fail("unexpected exception");
95	<	}
96	<	joinPool(p);
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	<	*   invoke(Executor, Runnable) will throw
71	<	*  ExecutionException An ExecutionException occurs when the
72	<	*  underlying Runnable throws an exception, here the
73	<	*  DivideByZeroException will cause an ExecutionException
74	<	*/
75	<	public void testInvoke3(){
76	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
77	<	try{
108	<	Runnable r = new Runnable(){
109	<	public void run(){
110	<	int i = 5/0;
111	<	}
112	<	};
113	<
114	<	for(int i =0; i < 5; i++){
115	<	Executors.invoke(p,r);
116	<	}
117	<
118	<	fail("should throw");
119	<	} catch(ExecutionException success){
120	<	} catch(Exception e){
121	<	fail("should throw EE");
122	<	}
123	<	joinPool(p);
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	+	* 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	<	*   invoke(Executor, Callable) throws
130	<	*  InterruptedException A single use of invoke starts that will
131	<	*  wait long enough for the invoking thread to be interrupted
102	>	* A new SingleThreadExecutor cannot be casted to concrete implementation
103		*/
104	<	public void testInvoke5(){
105	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
106	<
107	<	final Callable c = new Callable(){
108	<	public Object call(){
109	<	try{
110	<	Executors.invoke(p, new SmallCallable());
111	<	fail("should throw");
112	<	}catch(InterruptedException e){}
113	<	catch(RejectedExecutionException e2){}
143	<	catch(ExecutionException e3){}
144	<	return Boolean.TRUE;
145	<	}
146	<	};
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	>	}
113	>	}
114
115	+	/**
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	<	Thread t = new Thread(new Runnable(){
128	<	public void run(){
129	<	try{
130	<	c.call();
131	<	}catch(Exception e){}
132	<	}
133	<	});
134	<	try{
158	<	t.start();
159	<	Thread.sleep(SHORT_DELAY_MS);
160	<	t.interrupt();
161	<	t.join();
162	<	}catch(InterruptedException e){
163	<	fail("unexpected exception");
164	<	}
165	<
166	<	joinPool(p);
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	<	*   invoke(Executor, Callable) will throw ExecutionException
139	<	*  An ExecutionException occurs when the underlying Runnable throws
140	<	*  an exception, here the DivideByZeroException will cause an ExecutionException
141	<	*/
142	<	public void testInvoke6(){
143	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
144	<
177	<	try{
178	<	Callable c = new Callable(){
179	<	public Object call(){
180	<	int i = 5/0;
181	<	return Boolean.TRUE;
182	<	}
183	<	};
184	<
185	<	for(int i =0; i < 5; i++){
186	<	Executors.invoke(p,c);
187	<	}
188	<
189	<	fail("should throw");
190	<	}catch(RejectedExecutionException e){}
191	<	catch(InterruptedException e2){}
192	<	catch(ExecutionException e3){}
193	<	joinPool(p);
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	<	public void testExecuteRunnable () {
147	>	/**
148	>	* A new newFixedThreadPool with 0 threads throws IAE
149	>	*/
150	>	public void testNewFixedThreadPool4() {
151		try {
152	<	Executor e = new DirectExecutor();
153	<	Task task = new Task();
152	>	ExecutorService e = Executors.newFixedThreadPool(0);
153	>	shouldThrow();
154	>	} catch (IllegalArgumentException success) {}
155	>	}
156
157	<	assertFalse("task should not be complete", task.isCompleted());
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	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
179	<	String result = future.get();
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	<	assertTrue("task should be complete", task.isCompleted());
189	<	assertSame("should return test string", TEST_STRING, result);
190	<	}
191	<	catch (ExecutionException ex) {
192	<	fail("Unexpected exception");
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		}
212	<	catch (InterruptedException ex) {
213	<	fail("Unexpected exception");
212	>	}
213	>
214	>	/**
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 testInvokeRunnable () {
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	<	assertFalse("task should not be complete", task.isCompleted());
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	>	long startTime = System.nanoTime();
289	>	Future future = executor.submit(sleeper);
290	>	assertFutureTimesOut(future);
291	>	}}));
292	>	}
293	>	for (Thread thread : threads)
294	>	awaitTermination(thread);
295	>	for (ExecutorService executor : executors)
296	>	joinPool(executor);
297	>	}
298
299	<	Executors.invoke(e, task);
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	>	final CountDownLatch done = new CountDownLatch(1);
306	>	Runnable r = new CheckedRunnable() {
307	>	public void realRun() {
308	>	try {
309	>	Thread current = Thread.currentThread();
310	>	assertTrue(!current.isDaemon());
311	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
312	>	ThreadGroup g = current.getThreadGroup();
313	>	SecurityManager s = System.getSecurityManager();
314	>	if (s != null)
315	>	assertTrue(g == s.getThreadGroup());
316	>	else
317	>	assertTrue(g == egroup);
318	>	String name = current.getName();
319	>	assertTrue(name.endsWith("thread-1"));
320	>	} catch (SecurityException ok) {
321	>	// Also pass if not allowed to change setting
322	>	}
323	>	done.countDown();
324	>	}};
325	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
326
327	<	assertTrue("task should be complete", task.isCompleted());
328	<	}
228	<	catch (ExecutionException ex) {
229	<	fail("Unexpected exception");
230	<	}
231	<	catch (InterruptedException ex) {
232	<	fail("Unexpected exception");
233	<	}
234	<	}
327	>	e.execute(r);
328	>	await(done);
329
236	–	public void testExecuteCallable () {
330		try {
331	<	Executor e = new DirectExecutor();
332	<	Future<String> future = Executors.execute(e, new StringTask());
333	<	String result = future.get();
331	>	e.shutdown();
332	>	} catch (SecurityException ok) {
333	>	}
334
335	<	assertSame("should return test string", TEST_STRING, result);
335	>	joinPool(e);
336	>	}
337	>
338	>	/**
339	>	* ThreadPoolExecutor using privilegedThreadFactory has
340	>	* specified group, priority, daemon status, name,
341	>	* access control context and context class loader
342	>	*/
343	>	public void testPrivilegedThreadFactory() throws Exception {
344	>	final CountDownLatch done = new CountDownLatch(1);
345	>	Runnable r = new CheckedRunnable() {
346	>	public void realRun() throws Exception {
347	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
348	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
349	>	final AccessControlContext thisacc = AccessController.getContext();
350	>	Runnable r = new CheckedRunnable() {
351	>	public void realRun() {
352	>	Thread current = Thread.currentThread();
353	>	assertTrue(!current.isDaemon());
354	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
355	>	ThreadGroup g = current.getThreadGroup();
356	>	SecurityManager s = System.getSecurityManager();
357	>	if (s != null)
358	>	assertTrue(g == s.getThreadGroup());
359	>	else
360	>	assertTrue(g == egroup);
361	>	String name = current.getName();
362	>	assertTrue(name.endsWith("thread-1"));
363	>	assertSame(thisccl, current.getContextClassLoader());
364	>	assertEquals(thisacc, AccessController.getContext());
365	>	done.countDown();
366	>	}};
367	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
368	>	e.execute(r);
369	>	await(done);
370	>	e.shutdown();
371	>	joinPool(e);
372	>	}};
373	>
374	>	runWithPermissions(r,
375	>	new RuntimePermission("getClassLoader"),
376	>	new RuntimePermission("setContextClassLoader"),
377	>	new RuntimePermission("modifyThread"));
378	>	}
379	>
380	>	boolean haveCCLPermissions() {
381	>	SecurityManager sm = System.getSecurityManager();
382	>	if (sm != null) {
383	>	try {
384	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
385	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
386	>	} catch (AccessControlException e) {
387	>	return false;
388	>	}
389		}
390	<	catch (ExecutionException ex) {
391	<	fail("Unexpected exception");
390	>	return true;
391	>	}
392	>
393	>	void checkCCL() {
394	>	SecurityManager sm = System.getSecurityManager();
395	>	if (sm != null) {
396	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
397	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
398		}
399	<	catch (InterruptedException ex) {
400	<	fail("Unexpected exception");
399	>	}
400	>
401	>	class CheckCCL implements Callable<Object> {
402	>	public Object call() {
403	>	checkCCL();
404	>	return null;
405		}
406		}
407
408	<	public void testInvokeCallable () {
409	<	try {
410	<	Executor e = new DirectExecutor();
411	<	String result = Executors.invoke(e, new StringTask());
408	>	/**
409	>	* Without class loader permissions, creating
410	>	* privilegedCallableUsingCurrentClassLoader throws ACE
411	>	*/
412	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
413	>	Runnable r = new CheckedRunnable() {
414	>	public void realRun() throws Exception {
415	>	if (System.getSecurityManager() == null)
416	>	return;
417	>	try {
418	>	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
419	>	shouldThrow();
420	>	} catch (AccessControlException success) {}
421	>	}};
422
423	<	assertSame("should return test string", TEST_STRING, result);
258	<	}
259	<	catch (ExecutionException ex) {
260	<	fail("Unexpected exception" );
261	<	}
262	<	catch (InterruptedException ex) {
263	<	fail("Unexpected exception");
264	<	}
423	>	runWithoutPermissions(r);
424		}
425
426	<	private static final String TEST_STRING = "a test string";
426	>	/**
427	>	* With class loader permissions, calling
428	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
429	>	*/
430	>	public void testPrivilegedCallableUsingCCLWithPrivs() throws Exception {
431	>	Runnable r = new CheckedRunnable() {
432	>	public void realRun() throws Exception {
433	>	Executors.privilegedCallableUsingCurrentClassLoader
434	>	(new NoOpCallable())
435	>	.call();
436	>	}};
437	>
438	>	runWithPermissions(r,
439	>	new RuntimePermission("getClassLoader"),
440	>	new RuntimePermission("setContextClassLoader"));
441	>	}
442
443	<	private static class Task implements Runnable {
444	<	public void run() { completed = true; }
445	<	public boolean isCompleted() { return completed; }
446	<	public void reset() { completed = false; }
447	<	private boolean completed = false;
443	>	/**
444	>	* Without permissions, calling privilegedCallable throws ACE
445	>	*/
446	>	public void testPrivilegedCallableWithNoPrivs() throws Exception {
447	>	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
448	>	Executors.privilegedCallable(new CheckCCL());
449	>
450	>	Runnable r = new CheckedRunnable() {
451	>	public void realRun() throws Exception {
452	>	if (System.getSecurityManager() == null)
453	>	return;
454	>	Callable task = Executors.privilegedCallable(new CheckCCL());
455	>	try {
456	>	task.call();
457	>	shouldThrow();
458	>	} catch (AccessControlException success) {}
459	>	}};
460	>
461	>	runWithoutPermissions(r);
462	>
463	>	// It seems rather difficult to test that the
464	>	// AccessControlContext of the privilegedCallable is used
465	>	// instead of its caller.  Below is a failed attempt to do
466	>	// that, which does not work because the AccessController
467	>	// cannot capture the internal state of the current Policy.
468	>	// It would be much more work to differentiate based on,
469	>	// e.g. CodeSource.
470	>
471	>	//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
472	>	//         final Callable[] task = new Callable[1];
473	>
474	>	//         runWithPermissions
475	>	//             (new CheckedRunnable() {
476	>	//                 public void realRun() {
477	>	//                     if (System.getSecurityManager() == null)
478	>	//                         return;
479	>	//                     noprivAcc[0] = AccessController.getContext();
480	>	//                     task[0] = Executors.privilegedCallable(new CheckCCL());
481	>	//                     try {
482	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
483	>	//                                                           public Void run() {
484	>	//                                                               checkCCL();
485	>	//                                                               return null;
486	>	//                                                           }}, noprivAcc[0]);
487	>	//                         shouldThrow();
488	>	//                     } catch (AccessControlException success) {}
489	>	//                 }});
490	>
491	>	//         runWithPermissions
492	>	//             (new CheckedRunnable() {
493	>	//                 public void realRun() throws Exception {
494	>	//                     if (System.getSecurityManager() == null)
495	>	//                         return;
496	>	//                     // Verify that we have an underprivileged ACC
497	>	//                     try {
498	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
499	>	//                                                           public Void run() {
500	>	//                                                               checkCCL();
501	>	//                                                               return null;
502	>	//                                                           }}, noprivAcc[0]);
503	>	//                         shouldThrow();
504	>	//                     } catch (AccessControlException success) {}
505	>
506	>	//                     try {
507	>	//                         task[0].call();
508	>	//                         shouldThrow();
509	>	//                     } catch (AccessControlException success) {}
510	>	//                 }},
511	>	//              new RuntimePermission("getClassLoader"),
512	>	//              new RuntimePermission("setContextClassLoader"));
513		}
514
515	<	private static class StringTask implements Callable<String> {
516	<	public String call() { return TEST_STRING; }
515	>	/**
516	>	* With permissions, calling privilegedCallable succeeds
517	>	*/
518	>	public void testPrivilegedCallableWithPrivs() throws Exception {
519	>	Runnable r = new CheckedRunnable() {
520	>	public void realRun() throws Exception {
521	>	Executors.privilegedCallable(new CheckCCL()).call();
522	>	}};
523	>
524	>	runWithPermissions(r,
525	>	new RuntimePermission("getClassLoader"),
526	>	new RuntimePermission("setContextClassLoader"));
527		}
528
529	<	static class DirectExecutor implements Executor {
530	<	public void execute(Runnable r) {
531	<	r.run();
532	<	}
529	>	/**
530	>	* callable(Runnable) returns null when called
531	>	*/
532	>	public void testCallable1() throws Exception {
533	>	Callable c = Executors.callable(new NoOpRunnable());
534	>	assertNull(c.call());
535		}
536
537		/**
538	<	* Check that timeouts from execute will time out if they compute
288	<	* too long.
538	>	* callable(Runnable, result) returns result when called
539		*/
540	+	public void testCallable2() throws Exception {
541	+	Callable c = Executors.callable(new NoOpRunnable(), one);
542	+	assertSame(one, c.call());
543	+	}
544
545	<	public void testTimedCallable() {
546	<	int N = 10000;
547	<	ExecutorService executor = Executors.newSingleThreadExecutor();
548	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
549	<	try {
550	<	long startTime = System.currentTimeMillis();
551	<
298	<	long i = 0;
299	<	while (tasks.size() < N) {
300	<	tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
301	<	i += 10;
302	<	}
303	<
304	<	int iters = 0;
305	<	BigInteger sum = BigInteger.ZERO;
306	<	for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
307	<	try {
308	<	++iters;
309	<	sum = sum.add(it.next().call());
310	<	}
311	<	catch (TimeoutException success) {
312	<	assertTrue(iters > 0);
313	<	return;
314	<	}
315	<	catch (Exception e) {
316	<	fail("unexpected exception: " + e);
317	<	}
318	<	}
319	<	// if by chance we didn't ever time out, total time must be small
320	<	long elapsed = System.currentTimeMillis() - startTime;
321	<	assertTrue(elapsed < N);
322	<	}
323	<	finally {
324	<	joinPool(executor);
325	<	}
545	>	/**
546	>	* callable(PrivilegedAction) returns its result when called
547	>	*/
548	>	public void testCallable3() throws Exception {
549	>	Callable c = Executors.callable(new PrivilegedAction() {
550	>	public Object run() { return one; }});
551	>	assertSame(one, c.call());
552		}
553
554	<
555	<	static class TimedCallable<T> implements Callable<T> {
556	<	private final Executor exec;
557	<	private final Callable<T> func;
558	<	private final long msecs;
559	<
560	<	TimedCallable(Executor exec, Callable<T> func, long msecs) {
335	<	this.exec = exec;
336	<	this.func = func;
337	<	this.msecs = msecs;
338	<	}
339	<
340	<	public T call() throws Exception {
341	<	Future<T> ftask = Executors.execute(exec, func);
342	<	try {
343	<	return ftask.get(msecs, TimeUnit.MILLISECONDS);
344	<	} finally {
345	<	ftask.cancel(true);
346	<	}
347	<	}
554	>	/**
555	>	* callable(PrivilegedExceptionAction) returns its result when called
556	>	*/
557	>	public void testCallable4() throws Exception {
558	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
559	>	public Object run() { return one; }});
560	>	assertSame(one, c.call());
561		}
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	<	private static class Fib implements Callable<BigInteger> {
574	<	private final BigInteger n;
575	<	Fib(long n) {
576	<	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
577	<	this.n = BigInteger.valueOf(n);
578	<	}
579	<	public BigInteger call() {
580	<	BigInteger f1 = BigInteger.ONE;
581	<	BigInteger f2 = f1;
360	<	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
361	<	BigInteger t = f1.add(f2);
362	<	f1 = f2;
363	<	f2 = t;
364	<	}
365	<	return f1;
366	<	}
367	<	};
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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