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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 1.50 by jsr166, Wed Aug 16 17:18:34 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
144	+	* NullPointerException
145	+	*/
146	+	public void testNewFixedThreadPool3() {
147	+	try {
148	+	ExecutorService e = Executors.newFixedThreadPool(2, null);
149	+	shouldThrow();
150	+	} catch (NullPointerException success) {}
151	+	}
152
153	+	/**
154	+	* A new newFixedThreadPool with 0 threads throws IllegalArgumentException
155	+	*/
156	+	public void testNewFixedThreadPool4() {
157	+	try {
158	+	ExecutorService e = Executors.newFixedThreadPool(0);
159	+	shouldThrow();
160	+	} catch (IllegalArgumentException success) {}
161	+	}
162
163		/**
164	<	*   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
164	>	* An unconfigurable newFixedThreadPool can execute runnables
165		*/
166	<	public void testExecute1() {
167	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
166	>	public void testUnconfigurableExecutorService() {
167	>	final ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
168	>	try (PoolCleaner cleaner = cleaner(e)) {
169	>	e.execute(new NoOpRunnable());
170	>	e.execute(new NoOpRunnable());
171	>	e.execute(new NoOpRunnable());
172	>	}
173	>	}
174	>
175	>	/**
176	>	* unconfigurableExecutorService(null) throws NPE
177	>	*/
178	>	public void testUnconfigurableExecutorServiceNPE() {
179		try {
180	<
95	<	for(int i = 0; i < 5; ++i){
96	<	Executors.execute(p, new MediumRunnable(), Boolean.TRUE);
97	<	}
180	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
181		shouldThrow();
182	<	} catch(RejectedExecutionException success){}
100	<	joinPool(p);
182	>	} catch (NullPointerException success) {}
183		}
184
185		/**
186	<	*   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
186	>	* unconfigurableScheduledExecutorService(null) throws NPE
187		*/
188	<	public void testExecute2() {
111	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
188	>	public void testUnconfigurableScheduledExecutorServiceNPE() {
189		try {
190	<	for(int i = 0; i < 5; ++i) {
114	<	Executors.execute(p, new SmallCallable());
115	<	}
190	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
191		shouldThrow();
192	<	} catch(RejectedExecutionException e){}
118	<	joinPool(p);
192	>	} catch (NullPointerException success) {}
193		}
194
195	+	/**
196	+	* a newSingleThreadScheduledExecutor successfully runs delayed task
197	+	*/
198	+	public void testNewSingleThreadScheduledExecutor() throws Exception {
199	+	final ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor();
200	+	try (PoolCleaner cleaner = cleaner(p)) {
201	+	final CountDownLatch proceed = new CountDownLatch(1);
202	+	final Runnable task = new CheckedRunnable() {
203	+	public void realRun() {
204	+	await(proceed);
205	+	}};
206	+	long startTime = System.nanoTime();
207	+	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
208	+	timeoutMillis(), MILLISECONDS);
209	+	assertFalse(f.isDone());
210	+	proceed.countDown();
211	+	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
212	+	assertSame(Boolean.TRUE, f.get());
213	+	assertTrue(f.isDone());
214	+	assertFalse(f.isCancelled());
215	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
216	+	}
217	+	}
218	+
219	+	/**
220	+	* a newScheduledThreadPool successfully runs delayed task
221	+	*/
222	+	public void testNewScheduledThreadPool() throws Exception {
223	+	final ScheduledExecutorService p = Executors.newScheduledThreadPool(2);
224	+	try (PoolCleaner cleaner = cleaner(p)) {
225	+	final CountDownLatch proceed = new CountDownLatch(1);
226	+	final Runnable task = new CheckedRunnable() {
227	+	public void realRun() {
228	+	await(proceed);
229	+	}};
230	+	long startTime = System.nanoTime();
231	+	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
232	+	timeoutMillis(), MILLISECONDS);
233	+	assertFalse(f.isDone());
234	+	proceed.countDown();
235	+	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
236	+	assertSame(Boolean.TRUE, f.get());
237	+	assertTrue(f.isDone());
238	+	assertFalse(f.isCancelled());
239	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
240	+	}
241	+	}
242	+
243	+	/**
244	+	* an unconfigurable newScheduledThreadPool successfully runs delayed task
245	+	*/
246	+	public void testUnconfigurableScheduledExecutorService() throws Exception {
247	+	final ScheduledExecutorService p =
248	+	Executors.unconfigurableScheduledExecutorService
249	+	(Executors.newScheduledThreadPool(2));
250	+	try (PoolCleaner cleaner = cleaner(p)) {
251	+	final CountDownLatch proceed = new CountDownLatch(1);
252	+	final Runnable task = new CheckedRunnable() {
253	+	public void realRun() {
254	+	await(proceed);
255	+	}};
256	+	long startTime = System.nanoTime();
257	+	Future f = p.schedule(Executors.callable(task, Boolean.TRUE),
258	+	timeoutMillis(), MILLISECONDS);
259	+	assertFalse(f.isDone());
260	+	proceed.countDown();
261	+	assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS));
262	+	assertSame(Boolean.TRUE, f.get());
263	+	assertTrue(f.isDone());
264	+	assertFalse(f.isCancelled());
265	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
266	+	}
267	+	}
268	+
269	+	/**
270	+	* Future.get on submitted tasks will time out if they compute too long.
271	+	*/
272	+	public void testTimedCallable() throws Exception {
273	+	final ExecutorService[] executors = {
274	+	Executors.newSingleThreadExecutor(),
275	+	Executors.newCachedThreadPool(),
276	+	Executors.newFixedThreadPool(2),
277	+	Executors.newScheduledThreadPool(2),
278	+	};
279	+
280	+	final Runnable sleeper = new CheckedInterruptedRunnable() {
281	+	public void realRun() throws InterruptedException {
282	+	delay(LONG_DELAY_MS);
283	+	}};
284	+
285	+	List<Thread> threads = new ArrayList<>();
286	+	for (final ExecutorService executor : executors) {
287	+	threads.add(newStartedThread(new CheckedRunnable() {
288	+	public void realRun() {
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		/**
300	<	*   invoke(Executor, Runnable) throws InterruptedException
301	<	*  A single use of invoke starts that will wait long enough
302	<	*  for the invoking thread to be interrupted
303	<	*/
304	<	public void testInvoke2() {
305	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
306	<	Thread t = new Thread(new Runnable() {
307	<	public void run() {
308	<	try {
309	<	Executors.invoke(p,new Runnable() {
310	<	public void run() {
311	<	try {
312	<	Thread.sleep(MEDIUM_DELAY_MS);
313	<	shouldThrow();
314	<	} catch(InterruptedException e){
315	<	}
316	<	}
317	<	});
141	<	} catch(InterruptedException success){
142	<	} catch(Exception e) {
143	<	unexpectedException();
144	<	}
145	<
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	>	assertFalse(current.isDaemon());
311	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
312	>	SecurityManager s = System.getSecurityManager();
313	>	assertSame(current.getThreadGroup(),
314	>	(s == null) ? egroup : s.getThreadGroup());
315	>	assertTrue(current.getName().endsWith("thread-1"));
316	>	} catch (SecurityException ok) {
317	>	// Also pass if not allowed to change setting
318		}
319	<	});
320	<	try {
321	<	t.start();
322	<	Thread.sleep(SHORT_DELAY_MS);
323	<	t.interrupt();
324	<	} catch(Exception e){
153	<	unexpectedException();
319	>	done.countDown();
320	>	}};
321	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
322	>	try (PoolCleaner cleaner = cleaner(e)) {
323	>	e.execute(r);
324	>	await(done);
325		}
155	–	joinPool(p);
326		}
327
328		/**
329	<	*   invoke(Executor, Runnable) will throw
330	<	*  ExecutionException An ExecutionException occurs when the
331	<	*  underlying Runnable throws an exception, here the
332	<	*  DivideByZeroException will cause an ExecutionException
333	<	*/
334	<	public void testInvoke3() {
335	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
336	<	try {
337	<	Runnable r = new Runnable() {
338	<	public void run() {
339	<	int i = 5/0;
340	<	}
341	<	};
342	<
343	<	for(int i =0; i < 5; i++){
344	<	Executors.invoke(p,r);
329	>	* ThreadPoolExecutor using privilegedThreadFactory has
330	>	* specified group, priority, daemon status, name,
331	>	* access control context and context class loader
332	>	*/
333	>	public void testPrivilegedThreadFactory() throws Exception {
334	>	final CountDownLatch done = new CountDownLatch(1);
335	>	Runnable r = new CheckedRunnable() {
336	>	public void realRun() throws Exception {
337	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
338	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
339	>	final AccessControlContext thisacc = AccessController.getContext();
340	>	Runnable r = new CheckedRunnable() {
341	>	public void realRun() {
342	>	Thread current = Thread.currentThread();
343	>	assertFalse(current.isDaemon());
344	>	assertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
345	>	SecurityManager s = System.getSecurityManager();
346	>	assertSame(current.getThreadGroup(),
347	>	(s == null) ? egroup : s.getThreadGroup());
348	>	assertTrue(current.getName().endsWith("thread-1"));
349	>	assertSame(thisccl, current.getContextClassLoader());
350	>	assertEquals(thisacc, AccessController.getContext());
351	>	done.countDown();
352	>	}};
353	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
354	>	try (PoolCleaner cleaner = cleaner(e)) {
355	>	e.execute(r);
356	>	await(done);
357	>	}
358	>	}};
359	>
360	>	runWithPermissions(r,
361	>	new RuntimePermission("getClassLoader"),
362	>	new RuntimePermission("setContextClassLoader"),
363	>	new RuntimePermission("modifyThread"));
364	>	}
365	>
366	>	boolean haveCCLPermissions() {
367	>	SecurityManager sm = System.getSecurityManager();
368	>	if (sm != null) {
369	>	try {
370	>	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
371	>	sm.checkPermission(new RuntimePermission("getClassLoader"));
372	>	} catch (AccessControlException e) {
373	>	return false;
374		}
176	–
177	–	shouldThrow();
178	–	} catch(ExecutionException success){
179	–	} catch(Exception e){
180	–	unexpectedException();
375		}
376	<	joinPool(p);
376	>	return true;
377		}
378
379	+	void checkCCL() {
380	+	SecurityManager sm = System.getSecurityManager();
381	+	if (sm != null) {
382	+	sm.checkPermission(new RuntimePermission("setContextClassLoader"));
383	+	sm.checkPermission(new RuntimePermission("getClassLoader"));
384	+	}
385	+	}
386
387	+	class CheckCCL implements Callable<Object> {
388	+	public Object call() {
389	+	checkCCL();
390	+	return null;
391	+	}
392	+	}
393
394		/**
395	<	*   invoke(Executor, Callable) throws
396	<	*  InterruptedException A single use of invoke starts that will
190	<	*  wait long enough for the invoking thread to be interrupted
395	>	* Without class loader permissions, creating
396	>	* privilegedCallableUsingCurrentClassLoader throws ACE
397		*/
398	<	public void testInvoke5() {
399	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
400	<
401	<	final Callable c = new Callable() {
402	<	public Object call() {
403	<	try {
404	<	Executors.invoke(p, new SmallCallable());
405	<	shouldThrow();
406	<	} catch(InterruptedException e){}
407	<	catch(RejectedExecutionException e2){}
408	<	catch(ExecutionException e3){}
409	<	return Boolean.TRUE;
410	<	}
205	<	};
398	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
399	>	Runnable r = new CheckedRunnable() {
400	>	public void realRun() throws Exception {
401	>	if (System.getSecurityManager() == null)
402	>	return;
403	>	try {
404	>	Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
405	>	shouldThrow();
406	>	} catch (AccessControlException success) {}
407	>	}};
408	>
409	>	runWithoutPermissions(r);
410	>	}
411
412	+	/**
413	+	* With class loader permissions, calling
414	+	* privilegedCallableUsingCurrentClassLoader does not throw ACE
415	+	*/
416	+	public void testPrivilegedCallableUsingCCLWithPrivs() throws Exception {
417	+	Runnable r = new CheckedRunnable() {
418	+	public void realRun() throws Exception {
419	+	Executors.privilegedCallableUsingCurrentClassLoader
420	+	(new NoOpCallable())
421	+	.call();
422	+	}};
423
424	<
425	<	Thread t = new Thread(new Runnable() {
426	<	public void run() {
211	<	try {
212	<	c.call();
213	<	} catch(Exception e){}
214	<	}
215	<	});
216	<	try {
217	<	t.start();
218	<	Thread.sleep(SHORT_DELAY_MS);
219	<	t.interrupt();
220	<	t.join();
221	<	} catch(InterruptedException e){
222	<	unexpectedException();
223	<	}
224	<
225	<	joinPool(p);
424	>	runWithPermissions(r,
425	>	new RuntimePermission("getClassLoader"),
426	>	new RuntimePermission("setContextClassLoader"));
427		}
428
429		/**
430	<	*   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
430	>	* Without permissions, calling privilegedCallable throws ACE
431		*/
432	<	public void testInvoke6() {
433	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
432	>	public void testPrivilegedCallableWithNoPrivs() throws Exception {
433	>	// Avoid classloader-related SecurityExceptions in swingui.TestRunner
434	>	Executors.privilegedCallable(new CheckCCL());
435
436	<	try {
437	<	Callable c = new Callable() {
438	<	public Object call() {
439	<	int i = 5/0;
440	<	return Boolean.TRUE;
441	<	}
442	<	};
443	<
444	<	for(int i =0; i < 5; i++){
445	<	Executors.invoke(p,c);
446	<	}
447	<
448	<	shouldThrow();
449	<	} catch(RejectedExecutionException e){}
450	<	catch(InterruptedException e2){}
451	<	catch(ExecutionException e3){}
452	<	joinPool(p);
436	>	Runnable r = new CheckedRunnable() {
437	>	public void realRun() throws Exception {
438	>	if (System.getSecurityManager() == null)
439	>	return;
440	>	Callable task = Executors.privilegedCallable(new CheckCCL());
441	>	try {
442	>	task.call();
443	>	shouldThrow();
444	>	} catch (AccessControlException success) {}
445	>	}};
446	>
447	>	runWithoutPermissions(r);
448	>
449	>	// It seems rather difficult to test that the
450	>	// AccessControlContext of the privilegedCallable is used
451	>	// instead of its caller.  Below is a failed attempt to do
452	>	// that, which does not work because the AccessController
453	>	// cannot capture the internal state of the current Policy.
454	>	// It would be much more work to differentiate based on,
455	>	// e.g. CodeSource.
456	>
457	>	//         final AccessControlContext[] noprivAcc = new AccessControlContext[1];
458	>	//         final Callable[] task = new Callable[1];
459	>
460	>	//         runWithPermissions
461	>	//             (new CheckedRunnable() {
462	>	//                 public void realRun() {
463	>	//                     if (System.getSecurityManager() == null)
464	>	//                         return;
465	>	//                     noprivAcc[0] = AccessController.getContext();
466	>	//                     task[0] = Executors.privilegedCallable(new CheckCCL());
467	>	//                     try {
468	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
469	>	//                                                           public Void run() {
470	>	//                                                               checkCCL();
471	>	//                                                               return null;
472	>	//                                                           }}, noprivAcc[0]);
473	>	//                         shouldThrow();
474	>	//                     } catch (AccessControlException success) {}
475	>	//                 }});
476	>
477	>	//         runWithPermissions
478	>	//             (new CheckedRunnable() {
479	>	//                 public void realRun() throws Exception {
480	>	//                     if (System.getSecurityManager() == null)
481	>	//                         return;
482	>	//                     // Verify that we have an underprivileged ACC
483	>	//                     try {
484	>	//                         AccessController.doPrivileged(new PrivilegedAction<Void>() {
485	>	//                                                           public Void run() {
486	>	//                                                               checkCCL();
487	>	//                                                               return null;
488	>	//                                                           }}, noprivAcc[0]);
489	>	//                         shouldThrow();
490	>	//                     } catch (AccessControlException success) {}
491	>
492	>	//                     try {
493	>	//                         task[0].call();
494	>	//                         shouldThrow();
495	>	//                     } catch (AccessControlException success) {}
496	>	//                 }},
497	>	//              new RuntimePermission("getClassLoader"),
498	>	//              new RuntimePermission("setContextClassLoader"));
499	>	}
500	>
501	>	/**
502	>	* With permissions, calling privilegedCallable succeeds
503	>	*/
504	>	public void testPrivilegedCallableWithPrivs() throws Exception {
505	>	Runnable r = new CheckedRunnable() {
506	>	public void realRun() throws Exception {
507	>	Executors.privilegedCallable(new CheckCCL()).call();
508	>	}};
509	>
510	>	runWithPermissions(r,
511	>	new RuntimePermission("getClassLoader"),
512	>	new RuntimePermission("setContextClassLoader"));
513	>	}
514	>
515	>	/**
516	>	* callable(Runnable) returns null when called
517	>	*/
518	>	public void testCallable1() throws Exception {
519	>	Callable c = Executors.callable(new NoOpRunnable());
520	>	assertNull(c.call());
521	>	}
522	>
523	>	/**
524	>	* callable(Runnable, result) returns result when called
525	>	*/
526	>	public void testCallable2() throws Exception {
527	>	Callable c = Executors.callable(new NoOpRunnable(), one);
528	>	assertSame(one, c.call());
529	>	}
530	>
531	>	/**
532	>	* callable(PrivilegedAction) returns its result when called
533	>	*/
534	>	public void testCallable3() throws Exception {
535	>	Callable c = Executors.callable(new PrivilegedAction() {
536	>	public Object run() { return one; }});
537	>	assertSame(one, c.call());
538	>	}
539	>
540	>	/**
541	>	* callable(PrivilegedExceptionAction) returns its result when called
542	>	*/
543	>	public void testCallable4() throws Exception {
544	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
545	>	public Object run() { return one; }});
546	>	assertSame(one, c.call());
547		}
548
549		/**
550	<	*
550	>	* callable(null Runnable) throws NPE
551		*/
552	<	public void testExecuteRunnable () {
552	>	public void testCallableNPE1() {
553		try {
554	<	Executor e = new DirectExecutor();
555	<	MyTask task = new MyTask();
556	<	assertFalse(task.isCompleted());
263	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
264	<	String result = future.get();
265	<	assertTrue(task.isCompleted());
266	<	assertSame(TEST_STRING, result);
267	<	}
268	<	catch (ExecutionException ex) {
269	<	unexpectedException();
270	<	}
271	<	catch (InterruptedException ex) {
272	<	unexpectedException();
273	<	}
554	>	Callable c = Executors.callable((Runnable) null);
555	>	shouldThrow();
556	>	} catch (NullPointerException success) {}
557		}
558
559		/**
560	<	*
560	>	* callable(null, result) throws NPE
561		*/
562	<	public void testInvokeRunnable () {
562	>	public void testCallableNPE2() {
563		try {
564	<	Executor e = new DirectExecutor();
565	<	MyTask task = new MyTask();
566	<	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	<	}
564	>	Callable c = Executors.callable((Runnable) null, one);
565	>	shouldThrow();
566	>	} catch (NullPointerException success) {}
567		}
568
569		/**
570	<	*
570	>	* callable(null PrivilegedAction) throws NPE
571		*/
572	<	public void testExecuteCallable () {
572	>	public void testCallableNPE3() {
573		try {
574	<	Executor e = new DirectExecutor();
575	<	Future<String> future = Executors.execute(e, new StringTask());
576	<	String result = future.get();
303	<	assertSame(TEST_STRING, result);
304	<	}
305	<	catch (ExecutionException ex) {
306	<	unexpectedException();
307	<	}
308	<	catch (InterruptedException ex) {
309	<	unexpectedException();
310	<	}
574	>	Callable c = Executors.callable((PrivilegedAction) null);
575	>	shouldThrow();
576	>	} catch (NullPointerException success) {}
577		}
578
579		/**
580	<	*
580	>	* callable(null PrivilegedExceptionAction) throws NPE
581		*/
582	<	public void testInvokeCallable () {
582	>	public void testCallableNPE4() {
583		try {
584	<	Executor e = new DirectExecutor();
585	<	String result = Executors.invoke(e, new StringTask());
584	>	Callable c = Executors.callable((PrivilegedExceptionAction) null);
585	>	shouldThrow();
586	>	} catch (NullPointerException success) {}
587	>	}
588
589	<	assertSame(TEST_STRING, result);
590	<	}
591	<	catch (ExecutionException ex) {
592	<	unexpectedException();
593	<	}
594	<	catch (InterruptedException ex) {
595	<	unexpectedException();
589	>	/**
590	>	* callable(runnable, x).toString() contains toString of wrapped task
591	>	*/
592	>	public void testCallable_withResult_toString() {
593	>	if (testImplementationDetails) {
594	>	Runnable r = () -> {};
595	>	Callable<String> c = Executors.callable(r, "");
596	>	assertEquals(
597	>	identityString(c) + "[Wrapped task = " + r.toString() + "]",
598	>	c.toString());
599		}
600		}
601
602		/**
603	<	*  timeouts from execute will time out if they compute too long.
603	>	* callable(runnable).toString() contains toString of wrapped task
604		*/
605	<	public void testTimedCallable() {
606	<	int N = 10000;
607	<	ExecutorService executor = Executors.newSingleThreadExecutor();
608	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
609	<	try {
610	<	long startTime = System.currentTimeMillis();
611	<
341	<	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);
605	>	public void testCallable_toString() {
606	>	if (testImplementationDetails) {
607	>	Runnable r = () -> {};
608	>	Callable<Object> c = Executors.callable(r);
609	>	assertEquals(
610	>	identityString(c) + "[Wrapped task = " + r.toString() + "]",
611	>	c.toString());
612		}
613		}
614
615	<
616	<
615	>	/**
616	>	* privilegedCallable(callable).toString() contains toString of wrapped task
617	>	*/
618	>	public void testPrivilegedCallable_toString() {
619	>	if (testImplementationDetails) {
620	>	Callable<String> c = () -> "";
621	>	Callable<String> priv = Executors.privilegedCallable(c);
622	>	assertEquals(
623	>	identityString(priv) + "[Wrapped task = " + c.toString() + "]",
624	>	priv.toString());
625	>	}
626	>	}
627
628	+	/**
629	+	* privilegedCallableUsingCurrentClassLoader(callable).toString()
630	+	* contains toString of wrapped task
631	+	*/
632	+	public void testPrivilegedCallableUsingCurrentClassLoader_toString() {
633	+	if (testImplementationDetails) {
634	+	Callable<String> c = () -> "";
635	+	Callable<String> priv = Executors.privilegedCallableUsingCurrentClassLoader(c);
636	+	assertEquals(
637	+	identityString(priv) + "[Wrapped task = " + c.toString() + "]",
638	+	priv.toString());
639	+	}
640	+	}
641		}

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