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

Comparing jsr166/src/test/tck/ExecutorsTest.java (file contents):
Revision 1.6 by dl, Fri Sep 26 15:33:13 2003 UTC vs.
Revision 1.11 by dl, Mon Dec 22 00:48:55 2003 UTC

#	Line 10 | Line 10 | import junit.framework.*;
10		import java.util.*;
11		import java.util.concurrent.*;
12		import java.math.BigInteger;
13	+	import java.security.*;
14
15		public class ExecutorsTest extends JSR166TestCase{
16		public static void main(String[] args) {
17	<	junit.textui.TestRunner.run (suite());
17	>	junit.textui.TestRunner.run (suite());
18		}
19		public static Test suite() {
20	<	return new TestSuite(ExecutorsTest.class);
20	<	}
21	<
22	<	private static final String TEST_STRING = "a test string";
23	<
24	<	private static class StringTask implements Callable<String> {
25	<	public String call() { return TEST_STRING; }
26	<	}
27	<
28	<	static class DirectExecutor implements Executor {
29	<	public void execute(Runnable r) {
30	<	r.run();
31	<	}
20	>	return new TestSuite(ExecutorsTest.class);
21		}
22
23		static class TimedCallable<T> implements Callable<T> {
24	<	private final Executor exec;
24	>	private final ExecutorService exec;
25		private final Callable<T> func;
26		private final long msecs;
27
28	<	TimedCallable(Executor exec, Callable<T> func, long msecs) {
28	>	TimedCallable(ExecutorService exec, Callable<T> func, long msecs) {
29		this.exec = exec;
30		this.func = func;
31		this.msecs = msecs;
32		}
33
34		public T call() throws Exception {
35	<	Future<T> ftask = Executors.execute(exec, func);
35	>	Future<T> ftask = exec.submit(func);
36		try {
37		return ftask.get(msecs, TimeUnit.MILLISECONDS);
38		} finally {
#	Line 141 | Line 130 | public class ExecutorsTest extends JSR16
130		}
131
132		/**
133	+	* A new SingleThreadExecutor cannot be casted to concrete implementation
134	+	*/
135	+	public void testCastNewSingleThreadExecutor() {
136	+	ExecutorService e = Executors.newSingleThreadExecutor();
137	+	try {
138	+	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
139	+	} catch (ClassCastException success) {
140	+	} finally {
141	+	joinPool(e);
142	+	}
143	+	}
144	+
145	+
146	+	/**
147		* A new newFixedThreadPool can execute runnables
148		*/
149		public void testNewFixedThreadPool1() {
#	Line 186 | Line 189 | public class ExecutorsTest extends JSR16
189		}
190		}
191
192	+
193		/**
194	<	* execute of runnable runs it to completion
194	>	* An unconfigurable newFixedThreadPool can execute runnables
195		*/
196	<	public void testExecuteRunnable () {
197	<	try {
198	<	Executor e = new DirectExecutor();
199	<	TrackedRunnable task = new TrackedRunnable();
200	<	assertFalse(task.done);
201	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
198	<	String result = future.get();
199	<	assertTrue(task.done);
200	<	assertSame(TEST_STRING, result);
201	<	}
202	<	catch (ExecutionException ex) {
203	<	unexpectedException();
204	<	}
205	<	catch (InterruptedException ex) {
206	<	unexpectedException();
207	<	}
196	>	public void testunconfigurableExecutorService() {
197	>	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
198	>	e.execute(new NoOpRunnable());
199	>	e.execute(new NoOpRunnable());
200	>	e.execute(new NoOpRunnable());
201	>	e.shutdown();
202		}
203
204		/**
205	<	* invoke of a runnable runs it to completion
205	>	* unconfigurableExecutorService(null) throws NPE
206		*/
207	<	public void testInvokeRunnable () {
207	>	public void testunconfigurableExecutorServiceNPE() {
208		try {
209	<	Executor e = new DirectExecutor();
216	<	TrackedRunnable task = new TrackedRunnable();
217	<	assertFalse(task.done);
218	<	Executors.invoke(e, task);
219	<	assertTrue(task.done);
209	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
210		}
211	<	catch (ExecutionException ex) {
222	<	unexpectedException();
223	<	}
224	<	catch (InterruptedException ex) {
225	<	unexpectedException();
211	>	catch (NullPointerException success) {
212		}
213		}
214
215		/**
216	<	* execute of a callable runs it to completion
216	>	* unconfigurableScheduledExecutorService(null) throws NPE
217		*/
218	<	public void testExecuteCallable () {
218	>	public void testunconfigurableScheduledExecutorServiceNPE() {
219		try {
220	<	Executor e = new DirectExecutor();
235	<	Future<String> future = Executors.execute(e, new StringTask());
236	<	String result = future.get();
237	<	assertSame(TEST_STRING, result);
220	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
221		}
222	<	catch (ExecutionException ex) {
240	<	unexpectedException();
241	<	}
242	<	catch (InterruptedException ex) {
243	<	unexpectedException();
222	>	catch (NullPointerException success) {
223		}
224		}
225
226	+
227		/**
228	<	* invoke of a collable runs it to completion
228	>	* a newSingleThreadScheduledExecutor successfully runs delayed task
229		*/
230	<	public void testInvokeCallable () {
231	<	try {
232	<	Executor e = new DirectExecutor();
233	<	String result = Executors.invoke(e, new StringTask());
234	<
235	<	assertSame(TEST_STRING, result);
230	>	public void testNewSingleThreadScheduledExecutor() {
231	>	try {
232	>	TrackedCallable callable = new TrackedCallable();
233	>	ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
234	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
235	>	assertFalse(callable.done);
236	>	Thread.sleep(MEDIUM_DELAY_MS);
237	>	assertTrue(callable.done);
238	>	assertEquals(Boolean.TRUE, f.get());
239	>	p1.shutdown();
240	>	joinPool(p1);
241	>	} catch(RejectedExecutionException e){}
242	>	catch(Exception e){
243	>	e.printStackTrace();
244	>	unexpectedException();
245		}
246	<	catch (ExecutionException ex) {
246	>	}
247	>
248	>	/**
249	>	* a newScheduledThreadPool successfully runs delayed task
250	>	*/
251	>	public void testnewScheduledThreadPool() {
252	>	try {
253	>	TrackedCallable callable = new TrackedCallable();
254	>	ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
255	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
256	>	assertFalse(callable.done);
257	>	Thread.sleep(MEDIUM_DELAY_MS);
258	>	assertTrue(callable.done);
259	>	assertEquals(Boolean.TRUE, f.get());
260	>	p1.shutdown();
261	>	joinPool(p1);
262	>	} catch(RejectedExecutionException e){}
263	>	catch(Exception e){
264	>	e.printStackTrace();
265		unexpectedException();
266		}
267	<	catch (InterruptedException ex) {
267	>	}
268	>
269	>	/**
270	>	* an unconfigurable  newScheduledThreadPool successfully runs delayed task
271	>	*/
272	>	public void testunconfigurableScheduledExecutorService() {
273	>	try {
274	>	TrackedCallable callable = new TrackedCallable();
275	>	ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
276	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
277	>	assertFalse(callable.done);
278	>	Thread.sleep(MEDIUM_DELAY_MS);
279	>	assertTrue(callable.done);
280	>	assertEquals(Boolean.TRUE, f.get());
281	>	p1.shutdown();
282	>	joinPool(p1);
283	>	} catch(RejectedExecutionException e){}
284	>	catch(Exception e){
285	>	e.printStackTrace();
286		unexpectedException();
287		}
288		}
289
290		/**
291	<	* execute with null executor throws NPE
291	>	*  timeouts from execute will time out if they compute too long.
292		*/
293	<	public void testNullExecuteRunnable () {
293	>	public void testTimedCallable() {
294	>	int N = 10000;
295	>	ExecutorService executor = Executors.newSingleThreadExecutor();
296	>	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
297		try {
298	<	TrackedRunnable task = new TrackedRunnable();
299	<	assertFalse(task.done);
300	<	Future<String> future = Executors.execute(null, task, TEST_STRING);
301	<	shouldThrow();
302	<	}
303	<	catch (NullPointerException success) {
298	>	long startTime = System.currentTimeMillis();
299	>
300	>	long i = 0;
301	>	while (tasks.size() < N) {
302	>	tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
303	>	i += 10;
304	>	}
305	>
306	>	int iters = 0;
307	>	BigInteger sum = BigInteger.ZERO;
308	>	for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
309	>	try {
310	>	++iters;
311	>	sum = sum.add(it.next().call());
312	>	}
313	>	catch (TimeoutException success) {
314	>	assertTrue(iters > 0);
315	>	return;
316	>	}
317	>	catch (Exception e) {
318	>	unexpectedException();
319	>	}
320	>	}
321	>	// if by chance we didn't ever time out, total time must be small
322	>	long elapsed = System.currentTimeMillis() - startTime;
323	>	assertTrue(elapsed < N);
324		}
325	<	catch (Exception ex) {
326	<	unexpectedException();
325	>	finally {
326	>	joinPool(executor);
327		}
328		}
329
330	+
331		/**
332	<	* execute with a null runnable throws NPE
332	>	* ThreadPoolExecutor using defaultThreadFactory has
333	>	* specified group, priority, daemon status, and name
334		*/
335	<	public void testExecuteNullRunnable() {
335	>	public void testDefaultThreadFactory() {
336	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
337	>	Runnable r = new Runnable() {
338	>	public void run() {
339	>	Thread current = Thread.currentThread();
340	>	threadAssertTrue(!current.isDaemon());
341	>	threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
342	>	ThreadGroup g = current.getThreadGroup();
343	>	SecurityManager s = System.getSecurityManager();
344	>	if (s != null)
345	>	threadAssertTrue(g == s.getThreadGroup());
346	>	else
347	>	threadAssertTrue(g == egroup);
348	>	String name = current.getName();
349	>	threadAssertTrue(name.endsWith("thread-1"));
350	>	}
351	>	};
352	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
353	>
354	>	e.execute(r);
355	>	e.shutdown();
356		try {
357	<	Executor e = new DirectExecutor();
358	<	TrackedRunnable task = null;
289	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
290	<	shouldThrow();
291	<	}
292	<	catch (NullPointerException success) {
293	<	}
294	<	catch (Exception ex) {
357	>	Thread.sleep(SHORT_DELAY_MS);
358	>	} catch (Exception eX) {
359		unexpectedException();
360	+	} finally {
361	+	joinPool(e);
362		}
363		}
364
365		/**
366	<	* invoke of a null runnable throws NPE
366	>	* ThreadPoolExecutor using privilegedThreadFactory has
367	>	* specified group, priority, daemon status, name,
368	>	* access control context and context class loader
369		*/
370	<	public void testInvokeNullRunnable () {
370	>	public void testPrivilegedThreadFactory() {
371	>	Policy savedPolicy = Policy.getPolicy();
372	>	AdjustablePolicy policy = new AdjustablePolicy();
373	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
374	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
375	>	Policy.setPolicy(policy);
376	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
377	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
378	>	final AccessControlContext thisacc = AccessController.getContext();
379	>	Runnable r = new Runnable() {
380	>	public void run() {
381	>	Thread current = Thread.currentThread();
382	>	threadAssertTrue(!current.isDaemon());
383	>	threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
384	>	ThreadGroup g = current.getThreadGroup();
385	>	SecurityManager s = System.getSecurityManager();
386	>	if (s != null)
387	>	threadAssertTrue(g == s.getThreadGroup());
388	>	else
389	>	threadAssertTrue(g == egroup);
390	>	String name = current.getName();
391	>	threadAssertTrue(name.endsWith("thread-1"));
392	>	threadAssertTrue(thisccl == current.getContextClassLoader());
393	>	threadAssertTrue(thisacc.equals(AccessController.getContext()));
394	>	}
395	>	};
396	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
397	>
398	>	Policy.setPolicy(savedPolicy);
399	>	e.execute(r);
400	>	e.shutdown();
401		try {
402	<	Executor e = new DirectExecutor();
403	<	TrackedRunnable task = null;
306	<	Executors.invoke(e, task);
307	<	shouldThrow();
308	<	}
309	<	catch (NullPointerException success) {
310	<	}
311	<	catch (Exception ex) {
402	>	Thread.sleep(SHORT_DELAY_MS);
403	>	} catch (Exception ex) {
404		unexpectedException();
405	+	} finally {
406	+	joinPool(e);
407		}
408	+
409		}
410
411	+	static class CheckCCL implements Callable<Object> {
412	+	public Object call() {
413	+	AccessControlContext acc = AccessController.getContext();
414	+	acc.checkPermission(new RuntimePermission("getContextClassLoader"));
415	+	return null;
416	+	}
417	+	}
418	+
419	+
420		/**
421	<	* execute of a null callable throws NPE
421	>	* Without class loader permissions, creating
422	>	* privilegedCallableUsingCurrentClassLoader throws ACE
423		*/
424	<	public void testExecuteNullCallable () {
424	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
425	>	Policy savedPolicy = Policy.getPolicy();
426	>	AdjustablePolicy policy = new AdjustablePolicy();
427	>	Policy.setPolicy(policy);
428		try {
429	<	Executor e = new DirectExecutor();
322	<	StringTask t = null;
323	<	Future<String> future = Executors.execute(e, t);
429	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
430		shouldThrow();
431	<	}
432	<	catch (NullPointerException success) {
327	<	}
328	<	catch (Exception ex) {
431	>	} catch(AccessControlException success) {
432	>	} catch(Exception ex) {
433		unexpectedException();
434	+	}
435	+	finally {
436	+	Policy.setPolicy(savedPolicy);
437		}
438		}
439
440		/**
441	<	* invoke of a null callable throws NPE
441	>	* Without class loader permissions, calling
442	>	* privilegedCallableUsingCurrentClassLoader throws ACE
443		*/
444	<	public void testInvokeNullCallable () {
444	>	public void testprivilegedCallableUsingCCLWithPrivs() {
445	>	Policy savedPolicy = Policy.getPolicy();
446	>	AdjustablePolicy policy = new AdjustablePolicy();
447	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
448	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
449	>	Policy.setPolicy(policy);
450		try {
451	<	Executor e = new DirectExecutor();
452	<	StringTask t = null;
453	<	String result = Executors.invoke(e, t);
341	<	shouldThrow();
342	<	}
343	<	catch (NullPointerException success) {
344	<	}
345	<	catch (Exception ex) {
451	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
452	>	task.call();
453	>	} catch(Exception ex) {
454		unexpectedException();
455	+	}
456	+	finally {
457	+	Policy.setPolicy(savedPolicy);
458		}
459		}
460
461		/**
462	<	*  execute(Executor, Runnable) throws RejectedExecutionException
352	<	*  if saturated.
462	>	* Without permissions, calling privilegedCallable throws ACE
463		*/
464	<	public void testExecute1() {
465	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
464	>	public void testprivilegedCallableWithNoPrivs() {
465	>	Policy savedPolicy = Policy.getPolicy();
466	>	AdjustablePolicy policy = new AdjustablePolicy();
467	>	Policy.setPolicy(policy);
468	>	Callable task = Executors.privilegedCallable(new CheckCCL());
469	>	Policy.setPolicy(savedPolicy);
470		try {
471	<
358	<	for(int i = 0; i < 5; ++i){
359	<	Executors.execute(p, new MediumRunnable(), Boolean.TRUE);
360	<	}
471	>	task.call();
472		shouldThrow();
473	<	} catch(RejectedExecutionException success){}
474	<	joinPool(p);
473	>	} catch(AccessControlException success) {
474	>	} catch(Exception ex) {
475	>	unexpectedException();
476	>	} finally {
477	>	}
478		}
479
480		/**
481	<	*  execute(Executor, Callable)throws RejectedExecutionException
368	<	*  if saturated.
481	>	* With permissions, calling privilegedCallable succeeds
482		*/
483	<	public void testExecute2() {
484	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
483	>	public void testprivilegedCallableWithPrivs() {
484	>	Policy savedPolicy = Policy.getPolicy();
485	>	AdjustablePolicy policy = new AdjustablePolicy();
486	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
487	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
488	>	Policy.setPolicy(policy);
489	>	Callable task = Executors.privilegedCallable(new CheckCCL());
490		try {
491	<	for(int i = 0; i < 5; ++i) {
492	<	Executors.execute(p, new SmallCallable());
493	<	}
494	<	shouldThrow();
495	<	} catch(RejectedExecutionException e){}
496	<	joinPool(p);
491	>	task.call();
492	>	} catch(Exception ex) {
493	>	unexpectedException();
494	>	} finally {
495	>	Policy.setPolicy(savedPolicy);
496	>	}
497		}
498
381	–
499		/**
500	<	*  invoke(Executor, Runnable) throws InterruptedException if
501	<	*  caller interrupted.
502	<	*/
386	<	public void testInterruptedInvoke() {
387	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
388	<	Thread t = new Thread(new Runnable() {
389	<	public void run() {
390	<	try {
391	<	Executors.invoke(p,new Runnable() {
392	<	public void run() {
393	<	try {
394	<	Thread.sleep(MEDIUM_DELAY_MS);
395	<	shouldThrow();
396	<	} catch(InterruptedException e){
397	<	}
398	<	}
399	<	});
400	<	} catch(InterruptedException success){
401	<	} catch(Exception e) {
402	<	unexpectedException();
403	<	}
404	<
405	<	}
406	<	});
500	>	* callable(Runnable) returns null when called
501	>	*/
502	>	public void testCallable1() {
503		try {
504	<	t.start();
505	<	Thread.sleep(SHORT_DELAY_MS);
506	<	t.interrupt();
411	<	} catch(Exception e){
504	>	Callable c = Executors.callable(new NoOpRunnable());
505	>	assertNull(c.call());
506	>	} catch(Exception ex) {
507		unexpectedException();
508		}
509	<	joinPool(p);
509	>
510		}
511
512		/**
513	<	*  invoke(Executor, Runnable) throws ExecutionException if
514	<	*  runnable throws exception.
515	<	*/
421	<	public void testInvoke3() {
422	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
513	>	* callable(Runnable, result) returns result when called
514	>	*/
515	>	public void testCallable2() {
516		try {
517	<	Runnable r = new Runnable() {
518	<	public void run() {
519	<	int i = 5/0;
427	<	}
428	<	};
429	<
430	<	for(int i =0; i < 5; i++){
431	<	Executors.invoke(p,r);
432	<	}
433	<
434	<	shouldThrow();
435	<	} catch(ExecutionException success){
436	<	} catch(Exception e){
517	>	Callable c = Executors.callable(new NoOpRunnable(), one);
518	>	assertEquals(one, c.call());
519	>	} catch(Exception ex) {
520		unexpectedException();
521		}
439	–	joinPool(p);
522		}
523
442	–
443	–
524		/**
525	<	*  invoke(Executor, Callable) throws InterruptedException if
526	<	*  callable throws exception
527	<	*/
448	<	public void testInvoke5() {
449	<	final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
450	<
451	<	final Callable c = new Callable() {
452	<	public Object call() {
453	<	try {
454	<	Executors.invoke(p, new SmallCallable());
455	<	shouldThrow();
456	<	} catch(InterruptedException e){}
457	<	catch(RejectedExecutionException e2){}
458	<	catch(ExecutionException e3){}
459	<	return Boolean.TRUE;
460	<	}
461	<	};
462	<
463	<
464	<
465	<	Thread t = new Thread(new Runnable() {
466	<	public void run() {
467	<	try {
468	<	c.call();
469	<	} catch(Exception e){}
470	<	}
471	<	});
525	>	* callable(PrivilegedAction) returns its result when called
526	>	*/
527	>	public void testCallable3() {
528		try {
529	<	t.start();
530	<	Thread.sleep(SHORT_DELAY_MS);
531	<	t.interrupt();
532	<	t.join();
477	<	} catch(InterruptedException e){
529	>	Callable c = Executors.callable(new PrivilegedAction() {
530	>	public Object run() { return one; }});
531	>	assertEquals(one, c.call());
532	>	} catch(Exception ex) {
533		unexpectedException();
534		}
480	–
481	–	joinPool(p);
535		}
536
537		/**
538	<	*  invoke(Executor, Callable) will throw ExecutionException
539	<	*  if callable throws exception
540	<	*/
488	<	public void testInvoke6() {
489	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
490	<
538	>	* callable(PrivilegedExceptionAction) returns its result when called
539	>	*/
540	>	public void testCallable4() {
541		try {
542	<	Callable c = new Callable() {
543	<	public Object call() {
544	<	int i = 5/0;
545	<	return Boolean.TRUE;
496	<	}
497	<	};
498	<
499	<	for(int i =0; i < 5; i++){
500	<	Executors.invoke(p,c);
501	<	}
502	<
503	<	shouldThrow();
504	<	}
505	<	catch(ExecutionException success){
506	<	} catch(Exception e) {
542	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
543	>	public Object run() { return one; }});
544	>	assertEquals(one, c.call());
545	>	} catch(Exception ex) {
546		unexpectedException();
547		}
509	–	joinPool(p);
548		}
549
550
551	+	/**
552	+	* callable(null Runnable) throws NPE
553	+	*/
554	+	public void testCallableNPE1() {
555	+	try {
556	+	Runnable r = null;
557	+	Callable c = Executors.callable(r);
558	+	} catch (NullPointerException success) {
559	+	}
560	+	}
561
562		/**
563	<	*  timeouts from execute will time out if they compute too long.
564	<	*/
565	<	public void testTimedCallable() {
518	<	int N = 10000;
519	<	ExecutorService executor = Executors.newSingleThreadExecutor();
520	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
563	>	* callable(null, result) throws NPE
564	>	*/
565	>	public void testCallableNPE2() {
566		try {
567	<	long startTime = System.currentTimeMillis();
568	<
569	<	long i = 0;
525	<	while (tasks.size() < N) {
526	<	tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
527	<	i += 10;
528	<	}
529	<
530	<	int iters = 0;
531	<	BigInteger sum = BigInteger.ZERO;
532	<	for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
533	<	try {
534	<	++iters;
535	<	sum = sum.add(it.next().call());
536	<	}
537	<	catch (TimeoutException success) {
538	<	assertTrue(iters > 0);
539	<	return;
540	<	}
541	<	catch (Exception e) {
542	<	unexpectedException();
543	<	}
544	<	}
545	<	// if by chance we didn't ever time out, total time must be small
546	<	long elapsed = System.currentTimeMillis() - startTime;
547	<	assertTrue(elapsed < N);
567	>	Runnable r = null;
568	>	Callable c = Executors.callable(r, one);
569	>	} catch (NullPointerException success) {
570		}
571	<	finally {
572	<	joinPool(executor);
571	>	}
572	>
573	>	/**
574	>	* callable(null PrivilegedAction) throws NPE
575	>	*/
576	>	public void testCallableNPE3() {
577	>	try {
578	>	PrivilegedAction r = null;
579	>	Callable c = Executors.callable(r);
580	>	} catch (NullPointerException success) {
581		}
582		}
583
584	<
584	>	/**
585	>	* callable(null PrivilegedExceptionAction) throws NPE
586	>	*/
587	>	public void testCallableNPE4() {
588	>	try {
589	>	PrivilegedExceptionAction r = null;
590	>	Callable c = Executors.callable(r);
591	>	} catch (NullPointerException success) {
592	>	}
593	>	}
594
595
596		}

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