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

Comparing jsr166/src/test/tck/ExecutorsTest.java (file contents):
Revision 1.8 by dl, Sat Nov 1 18:37:02 2003 UTC vs.
Revision 1.29 by jsr166, Tue Jan 5 02:08:37 2010 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
2	>	* Written by Doug Lea with assistance from members of JCP JSR-166
3	>	* Expert Group and released to the public domain, as explained at
4	>	* http://creativecommons.org/licenses/publicdomain
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9
10		import junit.framework.*;
11		import java.util.*;
12		import java.util.concurrent.*;
13	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
14		import java.math.BigInteger;
15		import java.security.*;
16
17	<	public class ExecutorsTest extends JSR166TestCase{
17	>	public class ExecutorsTest extends JSR166TestCase {
18		public static void main(String[] args) {
19	<	junit.textui.TestRunner.run (suite());
19	>	junit.textui.TestRunner.run (suite());
20		}
21		public static Test suite() {
22	<	return new TestSuite(ExecutorsTest.class);
22	>	return new TestSuite(ExecutorsTest.class);
23		}
24
23	–	private static final String TEST_STRING = "a test string";
24	–
25	–	private static class StringTask implements Callable<String> {
26	–	public String call() { return TEST_STRING; }
27	–	}
28	–
29	–	static class DirectExecutor implements Executor {
30	–	public void execute(Runnable r) {
31	–	r.run();
32	–	}
33	–	}
34	–
35	–	static class TimedCallable<T> implements Callable<T> {
36	–	private final Executor exec;
37	–	private final Callable<T> func;
38	–	private final long msecs;
39	–
40	–	TimedCallable(Executor exec, Callable<T> func, long msecs) {
41	–	this.exec = exec;
42	–	this.func = func;
43	–	this.msecs = msecs;
44	–	}
45	–
46	–	public T call() throws Exception {
47	–	Future<T> ftask = Executors.execute(exec, func);
48	–	try {
49	–	return ftask.get(msecs, TimeUnit.MILLISECONDS);
50	–	} finally {
51	–	ftask.cancel(true);
52	–	}
53	–	}
54	–	}
55	–
56	–
57	–	private static class Fib implements Callable<BigInteger> {
58	–	private final BigInteger n;
59	–	Fib(long n) {
60	–	if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
61	–	this.n = BigInteger.valueOf(n);
62	–	}
63	–	public BigInteger call() {
64	–	BigInteger f1 = BigInteger.ONE;
65	–	BigInteger f2 = f1;
66	–	for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
67	–	BigInteger t = f1.add(f2);
68	–	f1 = f2;
69	–	f2 = t;
70	–	}
71	–	return f1;
72	–	}
73	–	};
74	–
25		/**
26		* A newCachedThreadPool can execute runnables
27		*/
#	Line 80 | Line 30 | public class ExecutorsTest extends JSR16
30		e.execute(new NoOpRunnable());
31		e.execute(new NoOpRunnable());
32		e.execute(new NoOpRunnable());
33	<	e.shutdown();
33	>	joinPool(e);
34		}
35
36		/**
#	Line 91 | Line 41 | public class ExecutorsTest extends JSR16
41		e.execute(new NoOpRunnable());
42		e.execute(new NoOpRunnable());
43		e.execute(new NoOpRunnable());
44	<	e.shutdown();
44	>	joinPool(e);
45		}
46
47		/**
#	Line 101 | Line 51 | public class ExecutorsTest extends JSR16
51		try {
52		ExecutorService e = Executors.newCachedThreadPool(null);
53		shouldThrow();
54	<	}
105	<	catch(NullPointerException success) {
106	<	}
54	>	} catch (NullPointerException success) {}
55		}
56
57
#	Line 115 | Line 63 | public class ExecutorsTest extends JSR16
63		e.execute(new NoOpRunnable());
64		e.execute(new NoOpRunnable());
65		e.execute(new NoOpRunnable());
66	<	e.shutdown();
66	>	joinPool(e);
67		}
68
69		/**
#	Line 126 | Line 74 | public class ExecutorsTest extends JSR16
74		e.execute(new NoOpRunnable());
75		e.execute(new NoOpRunnable());
76		e.execute(new NoOpRunnable());
77	<	e.shutdown();
77	>	joinPool(e);
78		}
79
80		/**
#	Line 136 | Line 84 | public class ExecutorsTest extends JSR16
84		try {
85		ExecutorService e = Executors.newSingleThreadExecutor(null);
86		shouldThrow();
87	<	}
88	<	catch(NullPointerException success) {
87	>	} catch (NullPointerException success) {}
88	>	}
89	>
90	>	/**
91	>	* A new SingleThreadExecutor cannot be casted to concrete implementation
92	>	*/
93	>	public void testCastNewSingleThreadExecutor() {
94	>	ExecutorService e = Executors.newSingleThreadExecutor();
95	>	try {
96	>	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
97	>	shouldThrow();
98	>	} catch (ClassCastException success) {
99	>	} finally {
100	>	joinPool(e);
101		}
102		}
103
104	+
105		/**
106		* A new newFixedThreadPool can execute runnables
107		*/
#	Line 149 | Line 110 | public class ExecutorsTest extends JSR16
110		e.execute(new NoOpRunnable());
111		e.execute(new NoOpRunnable());
112		e.execute(new NoOpRunnable());
113	<	e.shutdown();
113	>	joinPool(e);
114		}
115
116		/**
#	Line 160 | Line 121 | public class ExecutorsTest extends JSR16
121		e.execute(new NoOpRunnable());
122		e.execute(new NoOpRunnable());
123		e.execute(new NoOpRunnable());
124	<	e.shutdown();
124	>	joinPool(e);
125		}
126
127		/**
#	Line 170 | Line 131 | public class ExecutorsTest extends JSR16
131		try {
132		ExecutorService e = Executors.newFixedThreadPool(2, null);
133		shouldThrow();
134	<	}
174	<	catch(NullPointerException success) {
175	<	}
134	>	} catch (NullPointerException success) {}
135		}
136
137		/**
#	Line 182 | Line 141 | public class ExecutorsTest extends JSR16
141		try {
142		ExecutorService e = Executors.newFixedThreadPool(0);
143		shouldThrow();
144	<	}
186	<	catch(IllegalArgumentException success) {
187	<	}
144	>	} catch (IllegalArgumentException success) {}
145		}
146
147	+
148		/**
149	<	* execute of runnable runs it to completion
149	>	* An unconfigurable newFixedThreadPool can execute runnables
150		*/
151	<	public void testExecuteRunnable() {
152	<	try {
153	<	Executor e = new DirectExecutor();
154	<	TrackedShortRunnable task = new TrackedShortRunnable();
155	<	assertFalse(task.done);
156	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
199	<	String result = future.get();
200	<	assertTrue(task.done);
201	<	assertSame(TEST_STRING, result);
202	<	}
203	<	catch (ExecutionException ex) {
204	<	unexpectedException();
205	<	}
206	<	catch (InterruptedException ex) {
207	<	unexpectedException();
208	<	}
151	>	public void testunconfigurableExecutorService() {
152	>	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
153	>	e.execute(new NoOpRunnable());
154	>	e.execute(new NoOpRunnable());
155	>	e.execute(new NoOpRunnable());
156	>	joinPool(e);
157		}
158
159		/**
160	<	* invoke of a runnable runs it to completion
160	>	* unconfigurableExecutorService(null) throws NPE
161		*/
162	<	public void testInvokeRunnable() {
162	>	public void testunconfigurableExecutorServiceNPE() {
163		try {
164	<	Executor e = new DirectExecutor();
165	<	TrackedShortRunnable task = new TrackedShortRunnable();
166	<	assertFalse(task.done);
219	<	Executors.invoke(e, task);
220	<	assertTrue(task.done);
221	<	}
222	<	catch (ExecutionException ex) {
223	<	unexpectedException();
224	<	}
225	<	catch (InterruptedException ex) {
226	<	unexpectedException();
227	<	}
164	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
165	>	shouldThrow();
166	>	} catch (NullPointerException success) {}
167		}
168
169		/**
170	<	* execute of a callable runs it to completion
170	>	* unconfigurableScheduledExecutorService(null) throws NPE
171		*/
172	<	public void testExecuteCallable() {
172	>	public void testunconfigurableScheduledExecutorServiceNPE() {
173		try {
174	<	Executor e = new DirectExecutor();
175	<	Future<String> future = Executors.execute(e, new StringTask());
176	<	String result = future.get();
238	<	assertSame(TEST_STRING, result);
239	<	}
240	<	catch (ExecutionException ex) {
241	<	unexpectedException();
242	<	}
243	<	catch (InterruptedException ex) {
244	<	unexpectedException();
245	<	}
174	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
175	>	shouldThrow();
176	>	} catch (NullPointerException success) {}
177		}
178
179
180		/**
181	<	* execute of a privileged action runs it to completion
181	>	* a newSingleThreadScheduledExecutor successfully runs delayed task
182		*/
183	<	public void testExecutePrivilegedAction() {
184	<	Policy savedPolicy = Policy.getPolicy();
185	<	AdjustablePolicy policy = new AdjustablePolicy();
186	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
187	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
188	<	Policy.setPolicy(policy);
189	<	try {
190	<	Executor e = new DirectExecutor();
191	<	Future future = Executors.execute(e, new PrivilegedAction() {
261	<	public Object run() {
262	<	return TEST_STRING;
263	<	}});
264	<
265	<	Object result = future.get();
266	<	assertSame(TEST_STRING, result);
267	<	}
268	<	catch (ExecutionException ex) {
269	<	unexpectedException();
270	<	}
271	<	catch (InterruptedException ex) {
272	<	unexpectedException();
273	<	}
274	<	finally {
275	<	Policy.setPolicy(savedPolicy);
276	<	}
183	>	public void testNewSingleThreadScheduledExecutor() throws Exception {
184	>	TrackedCallable callable = new TrackedCallable();
185	>	ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
186	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
187	>	assertFalse(callable.done);
188	>	Thread.sleep(MEDIUM_DELAY_MS);
189	>	assertTrue(callable.done);
190	>	assertEquals(Boolean.TRUE, f.get());
191	>	joinPool(p1);
192		}
193
194		/**
195	<	* execute of a privileged exception action runs it to completion
195	>	* a newScheduledThreadPool successfully runs delayed task
196		*/
197	<	public void testExecutePrivilegedExceptionAction() {
198	<	Policy savedPolicy = Policy.getPolicy();
199	<	AdjustablePolicy policy = new AdjustablePolicy();
200	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
201	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
202	<	Policy.setPolicy(policy);
203	<	try {
204	<	Executor e = new DirectExecutor();
205	<	Future future = Executors.execute(e, new PrivilegedExceptionAction() {
291	<	public Object run() {
292	<	return TEST_STRING;
293	<	}});
294	<
295	<	Object result = future.get();
296	<	assertSame(TEST_STRING, result);
297	<	}
298	<	catch (ExecutionException ex) {
299	<	unexpectedException();
300	<	}
301	<	catch (InterruptedException ex) {
302	<	unexpectedException();
303	<	}
304	<	finally {
305	<	Policy.setPolicy(savedPolicy);
306	<	}
197	>	public void testnewScheduledThreadPool() throws Exception {
198	>	TrackedCallable callable = new TrackedCallable();
199	>	ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
200	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
201	>	assertFalse(callable.done);
202	>	Thread.sleep(MEDIUM_DELAY_MS);
203	>	assertTrue(callable.done);
204	>	assertEquals(Boolean.TRUE, f.get());
205	>	joinPool(p1);
206		}
207
208		/**
209	<	* execute of a failed privileged exception action reports exception
209	>	* an unconfigurable newScheduledThreadPool successfully runs delayed task
210		*/
211	<	public void testExecuteFailedPrivilegedExceptionAction() {
212	<	Policy savedPolicy = Policy.getPolicy();
213	<	AdjustablePolicy policy = new AdjustablePolicy();
214	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
215	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
216	<	Policy.setPolicy(policy);
217	<	try {
218	<	Executor e = new DirectExecutor();
219	<	Future future = Executors.execute(e, new PrivilegedExceptionAction() {
321	<	public Object run() throws Exception {
322	<	throw new IndexOutOfBoundsException();
323	<	}});
324	<
325	<	Object result = future.get();
326	<	shouldThrow();
327	<	}
328	<	catch (ExecutionException success) {
329	<	}
330	<	catch (InterruptedException ex) {
331	<	unexpectedException();
332	<	}
333	<	finally {
334	<	Policy.setPolicy(savedPolicy);
335	<	}
211	>	public void testunconfigurableScheduledExecutorService() throws Exception {
212	>	TrackedCallable callable = new TrackedCallable();
213	>	ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
214	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
215	>	assertFalse(callable.done);
216	>	Thread.sleep(MEDIUM_DELAY_MS);
217	>	assertTrue(callable.done);
218	>	assertEquals(Boolean.TRUE, f.get());
219	>	joinPool(p1);
220		}
221
222		/**
223	<	* invoke of a collable runs it to completion
223	>	*  Future.get on submitted tasks will time out if they compute too long.
224		*/
225	<	public void testInvokeCallable() {
226	<	try {
227	<	Executor e = new DirectExecutor();
228	<	String result = Executors.invoke(e, new StringTask());
229	<
230	<	assertSame(TEST_STRING, result);
231	<	}
232	<	catch (ExecutionException ex) {
233	<	unexpectedException();
234	<	}
235	<	catch (InterruptedException ex) {
236	<	unexpectedException();
225	>	public void testTimedCallable() throws Exception {
226	>	final Runnable sleeper =
227	>	new RunnableShouldThrow(InterruptedException.class) {
228	>	public void realRun() throws InterruptedException {
229	>	Thread.sleep(LONG_DELAY_MS);
230	>	}};
231	>	for (ExecutorService executor :
232	>	new ExecutorService[] {
233	>	Executors.newSingleThreadExecutor(),
234	>	Executors.newCachedThreadPool(),
235	>	Executors.newFixedThreadPool(2),
236	>	Executors.newScheduledThreadPool(2),
237	>	}) {
238	>	try {
239	>	Future future = executor.submit(sleeper);
240	>	try {
241	>	future.get(SHORT_DELAY_MS, MILLISECONDS);
242	>	shouldThrow();
243	>	} catch (TimeoutException success) {
244	>	} finally {
245	>	future.cancel(true);
246	>	}
247	>	}
248	>	finally {
249	>	joinPool(executor);
250	>	}
251		}
252		}
253
254	+
255		/**
256	<	* execute with null executor throws NPE
256	>	* ThreadPoolExecutor using defaultThreadFactory has
257	>	* specified group, priority, daemon status, and name
258		*/
259	<	public void testNullExecuteRunnable() {
259	>	public void testDefaultThreadFactory() throws Exception {
260	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
261	>	Runnable r = new Runnable() {
262	>	public void run() {
263	>	try {
264	>	Thread current = Thread.currentThread();
265	>	threadAssertTrue(!current.isDaemon());
266	>	threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
267	>	ThreadGroup g = current.getThreadGroup();
268	>	SecurityManager s = System.getSecurityManager();
269	>	if (s != null)
270	>	threadAssertTrue(g == s.getThreadGroup());
271	>	else
272	>	threadAssertTrue(g == egroup);
273	>	String name = current.getName();
274	>	threadAssertTrue(name.endsWith("thread-1"));
275	>	} catch (SecurityException ok) {
276	>	// Also pass if not allowed to change setting
277	>	}
278	>	}
279	>	};
280	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
281	>
282	>	e.execute(r);
283		try {
284	<	TrackedShortRunnable task = new TrackedShortRunnable();
285	<	assertFalse(task.done);
363	<	Future<String> future = Executors.execute(null, task, TEST_STRING);
364	<	shouldThrow();
284	>	e.shutdown();
285	>	} catch (SecurityException ok) {
286		}
287	<	catch (NullPointerException success) {
288	<	}
289	<	catch (Exception ex) {
290	<	unexpectedException();
287	>
288	>	try {
289	>	Thread.sleep(SHORT_DELAY_MS);
290	>	} finally {
291	>	joinPool(e);
292		}
293		}
294
295		/**
296	<	* execute with a null runnable throws NPE
296	>	* ThreadPoolExecutor using privilegedThreadFactory has
297	>	* specified group, priority, daemon status, name,
298	>	* access control context and context class loader
299		*/
300	<	public void testExecuteNullRunnable() {
301	<	try {
302	<	Executor e = new DirectExecutor();
303	<	TrackedShortRunnable task = null;
304	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
305	<	shouldThrow();
300	>	public void testPrivilegedThreadFactory() throws Exception {
301	>	Runnable r = new CheckedRunnable() {
302	>	public void realRun() throws Exception {
303	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
304	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
305	>	final AccessControlContext thisacc = AccessController.getContext();
306	>	Runnable r = new CheckedRunnable() {
307	>	public void realRun() {
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	>	assertTrue(thisccl == current.getContextClassLoader());
320	>	assertTrue(thisacc.equals(AccessController.getContext()));
321	>	}};
322	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
323	>	e.execute(r);
324	>	e.shutdown();
325	>	Thread.sleep(SHORT_DELAY_MS);
326	>	joinPool(e);
327	>	}};
328	>
329	>	runWithPermissions(r,
330	>	new RuntimePermission("getClassLoader"),
331	>	new RuntimePermission("setContextClassLoader"),
332	>	new RuntimePermission("modifyThread"));
333	>	}
334	>
335	>	boolean haveCCLPermissions() {
336	>	SecurityManager sm = System.getSecurityManager();
337	>	if (sm != null) {
338	>	try {
339	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
340	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
341	>	} catch (AccessControlException e) {
342	>	return false;
343	>	}
344		}
345	<	catch (NullPointerException success) {
345	>	return true;
346	>	}
347	>
348	>	void checkCCL() {
349	>	SecurityManager sm = System.getSecurityManager();
350	>	if (sm != null) {
351	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
352	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
353		}
354	<	catch (Exception ex) {
355	<	unexpectedException();
354	>	}
355	>
356	>	class CheckCCL implements Callable<Object> {
357	>	public Object call() {
358	>	checkCCL();
359	>	return null;
360		}
361		}
362
363	+
364		/**
365	<	* invoke of a null runnable throws NPE
365	>	* Without class loader permissions, creating
366	>	* privilegedCallableUsingCurrentClassLoader throws ACE
367		*/
368	<	public void testInvokeNullRunnable() {
369	<	try {
370	<	Executor e = new DirectExecutor();
371	<	TrackedShortRunnable task = null;
372	<	Executors.invoke(e, task);
373	<	shouldThrow();
374	<	}
375	<	catch (NullPointerException success) {
376	<	}
377	<	catch (Exception ex) {
378	<	unexpectedException();
379	<	}
368	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
369	>	Runnable r = new CheckedRunnable() {
370	>	public void realRun() throws Exception {
371	>	if (System.getSecurityManager() == null)
372	>	return;
373	>	try {
374	>	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
375	>	shouldThrow();
376	>	} catch (AccessControlException success) {}
377	>	}};
378	>
379	>	runWithoutPermissions(r);
380		}
381
382		/**
383	<	* execute of a null callable throws NPE
383	>	* With class loader permissions, calling
384	>	* privilegedCallableUsingCurrentClassLoader does not throw ACE
385		*/
386	<	public void testExecuteNullCallable() {
387	<	try {
388	<	Executor e = new DirectExecutor();
389	<	StringTask t = null;
390	<	Future<String> future = Executors.execute(e, t);
391	<	shouldThrow();
392	<	}
393	<	catch (NullPointerException success) {
394	<	}
395	<	catch (Exception ex) {
396	<	unexpectedException();
421	<	}
386	>	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
387	>	Runnable r = new CheckedRunnable() {
388	>	public void realRun() throws Exception {
389	>	Executors.privilegedCallableUsingCurrentClassLoader
390	>	(new NoOpCallable())
391	>	.call();
392	>	}};
393	>
394	>	runWithPermissions(r,
395	>	new RuntimePermission("getClassLoader"),
396	>	new RuntimePermission("setContextClassLoader"));
397		}
398
399		/**
400	<	* invoke of a null callable throws NPE
400	>	* Without permissions, calling privilegedCallable throws ACE
401		*/
402	<	public void testInvokeNullCallable() {
403	<	try {
404	<	Executor e = new DirectExecutor();
405	<	StringTask t = null;
406	<	String result = Executors.invoke(e, t);
407	<	shouldThrow();
408	<	}
409	<	catch (NullPointerException success) {
410	<	}
411	<	catch (Exception ex) {
412	<	unexpectedException();
413	<	}
402	>	public void testprivilegedCallableWithNoPrivs() throws Exception {
403	>	Runnable r = new CheckedRunnable() {
404	>	public void realRun() throws Exception {
405	>	if (System.getSecurityManager() == null)
406	>	return;
407	>	Callable task = Executors.privilegedCallable(new CheckCCL());
408	>	try {
409	>	task.call();
410	>	shouldThrow();
411	>	} catch (AccessControlException success) {}
412	>	}};
413	>
414	>	runWithoutPermissions(r);
415	>
416	>	// It seems rather difficult to test that the
417	>	// AccessControlContext of the privilegedCallable is used
418	>	// instead of its caller.  Below is a failed attempt to do
419	>	// that, which does not work because the AccessController
420	>	// cannot capture the internal state of the current Policy.
421	>	// It would be much more work to differentiate based on,
422	>	// e.g. CodeSource.
423	>
424	>	//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
425	>	//         final Callable[] task = new Callable[1];
426	>
427	>	//         runWithPermissions
428	>	//             (new CheckedRunnable() {
429	>	//                 public void realRun() {
430	>	//                     if (System.getSecurityManager() == null)
431	>	//                         return;
432	>	//                     noprivAcc[0] = AccessController.getContext();
433	>	//                     task[0] = Executors.privilegedCallable(new CheckCCL());
434	>	//                     try {
435	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
436	>	//                                                           public Void run() {
437	>	//                                                               checkCCL();
438	>	//                                                               return null;
439	>	//                                                           }}, noprivAcc[0]);
440	>	//                         shouldThrow();
441	>	//                     } catch (AccessControlException success) {}
442	>	//                 }});
443	>
444	>	//         runWithPermissions
445	>	//             (new CheckedRunnable() {
446	>	//                 public void realRun() throws Exception {
447	>	//                     if (System.getSecurityManager() == null)
448	>	//                         return;
449	>	//                     // Verify that we have an underprivileged ACC
450	>	//                     try {
451	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
452	>	//                                                           public Void run() {
453	>	//                                                               checkCCL();
454	>	//                                                               return null;
455	>	//                                                           }}, noprivAcc[0]);
456	>	//                         shouldThrow();
457	>	//                     } catch (AccessControlException success) {}
458	>
459	>	//                     try {
460	>	//                         task[0].call();
461	>	//                         shouldThrow();
462	>	//                     } catch (AccessControlException success) {}
463	>	//                 }},
464	>	//              new RuntimePermission("getClassLoader"),
465	>	//              new RuntimePermission("setContextClassLoader"));
466		}
467
468		/**
469	<	*  execute(Executor, Runnable) throws RejectedExecutionException
443	<	*  if saturated.
469	>	* With permissions, calling privilegedCallable succeeds
470		*/
471	<	public void testExecute1() {
472	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
473	<	try {
474	<
475	<	for(int i = 0; i < 5; ++i){
476	<	Executors.execute(p, new MediumRunnable(), Boolean.TRUE);
477	<	}
478	<	shouldThrow();
479	<	} catch(RejectedExecutionException success){}
454	<	joinPool(p);
471	>	public void testprivilegedCallableWithPrivs() throws Exception {
472	>	Runnable r = new CheckedRunnable() {
473	>	public void realRun() throws Exception {
474	>	Executors.privilegedCallable(new CheckCCL()).call();
475	>	}};
476	>
477	>	runWithPermissions(r,
478	>	new RuntimePermission("getClassLoader"),
479	>	new RuntimePermission("setContextClassLoader"));
480		}
481
482		/**
483	<	*  execute(Executor, Callable)throws RejectedExecutionException
459	<	*  if saturated.
483	>	* callable(Runnable) returns null when called
484		*/
485	<	public void testExecute2() {
486	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
487	<	try {
464	<	for(int i = 0; i < 5; ++i) {
465	<	Executors.execute(p, new SmallCallable());
466	<	}
467	<	shouldThrow();
468	<	} catch(RejectedExecutionException e){}
469	<	joinPool(p);
485	>	public void testCallable1() throws Exception {
486	>	Callable c = Executors.callable(new NoOpRunnable());
487	>	assertNull(c.call());
488		}
489
472	–
490		/**
491	<	*  invoke(Executor, Runnable) throws InterruptedException if
475	<	*  caller interrupted.
491	>	* callable(Runnable, result) returns result when called
492		*/
493	<	public void testInterruptedInvoke() {
494	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
495	<	Thread t = new Thread(new Runnable() {
480	<	public void run() {
481	<	try {
482	<	Executors.invoke(p,new Runnable() {
483	<	public void run() {
484	<	try {
485	<	Thread.sleep(MEDIUM_DELAY_MS);
486	<	shouldThrow();
487	<	} catch(InterruptedException e){
488	<	}
489	<	}
490	<	});
491	<	} catch(InterruptedException success){
492	<	} catch(Exception e) {
493	<	unexpectedException();
494	<	}
495	<
496	<	}
497	<	});
498	<	try {
499	<	t.start();
500	<	Thread.sleep(SHORT_DELAY_MS);
501	<	t.interrupt();
502	<	} catch(Exception e){
503	<	unexpectedException();
504	<	}
505	<	joinPool(p);
493	>	public void testCallable2() throws Exception {
494	>	Callable c = Executors.callable(new NoOpRunnable(), one);
495	>	assertSame(one, c.call());
496		}
497
498		/**
499	<	*  invoke(Executor, Runnable) throws ExecutionException if
510	<	*  runnable throws exception.
499	>	* callable(PrivilegedAction) returns its result when called
500		*/
501	<	public void testInvoke3() {
502	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
503	<	try {
504	<	Runnable r = new Runnable() {
516	<	public void run() {
517	<	int i = 5/0;
518	<	}
519	<	};
520	<
521	<	for(int i =0; i < 5; i++){
522	<	Executors.invoke(p,r);
523	<	}
524	<
525	<	shouldThrow();
526	<	} catch(ExecutionException success){
527	<	} catch(Exception e){
528	<	unexpectedException();
529	<	}
530	<	joinPool(p);
501	>	public void testCallable3() throws Exception {
502	>	Callable c = Executors.callable(new PrivilegedAction() {
503	>	public Object run() { return one; }});
504	>	assertSame(one, c.call());
505		}
506
533	–
534	–
507		/**
508	<	*  invoke(Executor, Callable) throws InterruptedException if
537	<	*  callable throws exception
508	>	* callable(PrivilegedExceptionAction) returns its result when called
509		*/
510	<	public void testInvoke5() {
511	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
512	<
513	<	final Callable c = new Callable() {
543	<	public Object call() {
544	<	try {
545	<	Executors.invoke(p, new SmallCallable());
546	<	shouldThrow();
547	<	} catch(InterruptedException e){}
548	<	catch(RejectedExecutionException e2){}
549	<	catch(ExecutionException e3){}
550	<	return Boolean.TRUE;
551	<	}
552	<	};
553	<
554	<
555	<
556	<	Thread t = new Thread(new Runnable() {
557	<	public void run() {
558	<	try {
559	<	c.call();
560	<	} catch(Exception e){}
561	<	}
562	<	});
563	<	try {
564	<	t.start();
565	<	Thread.sleep(SHORT_DELAY_MS);
566	<	t.interrupt();
567	<	t.join();
568	<	} catch(InterruptedException e){
569	<	unexpectedException();
570	<	}
571	<
572	<	joinPool(p);
510	>	public void testCallable4() throws Exception {
511	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
512	>	public Object run() { return one; }});
513	>	assertSame(one, c.call());
514		}
515
516	+
517		/**
518	<	*  invoke(Executor, Callable) will throw ExecutionException
577	<	*  if callable throws exception
518	>	* callable(null Runnable) throws NPE
519		*/
520	<	public void testInvoke6() {
580	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
581	<
520	>	public void testCallableNPE1() {
521		try {
522	<	Callable c = new Callable() {
584	<	public Object call() {
585	<	int i = 5/0;
586	<	return Boolean.TRUE;
587	<	}
588	<	};
589	<
590	<	for(int i =0; i < 5; i++){
591	<	Executors.invoke(p,c);
592	<	}
593	<
522	>	Callable c = Executors.callable((Runnable) null);
523		shouldThrow();
524	<	}
596	<	catch(ExecutionException success){
597	<	} catch(Exception e) {
598	<	unexpectedException();
599	<	}
600	<	joinPool(p);
524	>	} catch (NullPointerException success) {}
525		}
526
603	–
604	–
527		/**
528	<	*  timeouts from execute will time out if they compute too long.
528	>	* callable(null, result) throws NPE
529		*/
530	<	public void testTimedCallable() {
609	<	int N = 10000;
610	<	ExecutorService executor = Executors.newSingleThreadExecutor();
611	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
530	>	public void testCallableNPE2() {
531		try {
532	<	long startTime = System.currentTimeMillis();
533	<
534	<	long i = 0;
616	<	while (tasks.size() < N) {
617	<	tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
618	<	i += 10;
619	<	}
620	<
621	<	int iters = 0;
622	<	BigInteger sum = BigInteger.ZERO;
623	<	for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
624	<	try {
625	<	++iters;
626	<	sum = sum.add(it.next().call());
627	<	}
628	<	catch (TimeoutException success) {
629	<	assertTrue(iters > 0);
630	<	return;
631	<	}
632	<	catch (Exception e) {
633	<	unexpectedException();
634	<	}
635	<	}
636	<	// if by chance we didn't ever time out, total time must be small
637	<	long elapsed = System.currentTimeMillis() - startTime;
638	<	assertTrue(elapsed < N);
639	<	}
640	<	finally {
641	<	joinPool(executor);
642	<	}
532	>	Callable c = Executors.callable((Runnable) null, one);
533	>	shouldThrow();
534	>	} catch (NullPointerException success) {}
535		}
536
645	–
537		/**
538	<	* ThreadPoolExecutor using defaultThreadFactory has
648	<	* specified group, priority, daemon status, and name
538	>	* callable(null PrivilegedAction) throws NPE
539		*/
540	<	public void testDefaultThreadFactory() {
541	<	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
542	<	Runnable r = new Runnable() {
543	<	public void run() {
544	<	Thread current = Thread.currentThread();
655	<	threadAssertTrue(!current.isDaemon());
656	<	threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
657	<	ThreadGroup g = current.getThreadGroup();
658	<	SecurityManager s = System.getSecurityManager();
659	<	if (s != null)
660	<	threadAssertTrue(g == s.getThreadGroup());
661	<	else
662	<	threadAssertTrue(g == egroup);
663	<	String name = current.getName();
664	<	threadAssertTrue(name.endsWith("thread-1"));
665	<	}
666	<	};
667	<	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
668	<
669	<	e.execute(r);
670	<	e.shutdown();
671	<	try {
672	<	Thread.sleep(SHORT_DELAY_MS);
673	<	} catch (Exception eX) {
674	<	unexpectedException();
675	<	} finally {
676	<	joinPool(e);
677	<	}
540	>	public void testCallableNPE3() {
541	>	try {
542	>	Callable c = Executors.callable((PrivilegedAction) null);
543	>	shouldThrow();
544	>	} catch (NullPointerException success) {}
545		}
546
547		/**
548	<	* ThreadPoolExecutor using privilegedThreadFactory has
682	<	* specified group, priority, daemon status, name,
683	<	* access control context and context class loader
548	>	* callable(null PrivilegedExceptionAction) throws NPE
549		*/
550	<	public void testPrivilegedThreadFactory() {
551	<	Policy savedPolicy = Policy.getPolicy();
552	<	AdjustablePolicy policy = new AdjustablePolicy();
553	<	policy.addPermission(new RuntimePermission("getContextClassLoader"));
554	<	policy.addPermission(new RuntimePermission("setContextClassLoader"));
690	<	Policy.setPolicy(policy);
691	<	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
692	<	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
693	<	final AccessControlContext thisacc = AccessController.getContext();
694	<	Runnable r = new Runnable() {
695	<	public void run() {
696	<	Thread current = Thread.currentThread();
697	<	threadAssertTrue(!current.isDaemon());
698	<	threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
699	<	ThreadGroup g = current.getThreadGroup();
700	<	SecurityManager s = System.getSecurityManager();
701	<	if (s != null)
702	<	threadAssertTrue(g == s.getThreadGroup());
703	<	else
704	<	threadAssertTrue(g == egroup);
705	<	String name = current.getName();
706	<	threadAssertTrue(name.endsWith("thread-1"));
707	<	threadAssertTrue(thisccl == current.getContextClassLoader());
708	<	threadAssertTrue(thisacc.equals(AccessController.getContext()));
709	<	}
710	<	};
711	<	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
712	<
713	<	Policy.setPolicy(savedPolicy);
714	<	e.execute(r);
715	<	e.shutdown();
716	<	try {
717	<	Thread.sleep(SHORT_DELAY_MS);
718	<	} catch (Exception ex) {
719	<	unexpectedException();
720	<	} finally {
721	<	joinPool(e);
722	<	}
723	<
550	>	public void testCallableNPE4() {
551	>	try {
552	>	Callable c = Executors.callable((PrivilegedExceptionAction) null);
553	>	shouldThrow();
554	>	} catch (NullPointerException success) {}
555		}
556
557	+
558		}

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