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

Comparing jsr166/src/test/tck/ExecutorsTest.java (file contents):
Revision 1.7 by dl, Sun Oct 5 23:00:40 2003 UTC vs.
Revision 1.13 by dl, Mon Jan 19 15:49:02 2004 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
#	Line 10 | Line 11 | import junit.framework.*;
11		import java.util.*;
12		import java.util.concurrent.*;
13		import java.math.BigInteger;
14	+	import java.security.*;
15
16		public class ExecutorsTest extends JSR166TestCase{
17		public static void main(String[] args) {
18	<	junit.textui.TestRunner.run (suite());
18	>	junit.textui.TestRunner.run (suite());
19		}
20		public static Test suite() {
21	<	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	<	}
21	>	return new TestSuite(ExecutorsTest.class);
22		}
23
24		static class TimedCallable<T> implements Callable<T> {
25	<	private final Executor exec;
25	>	private final ExecutorService exec;
26		private final Callable<T> func;
27		private final long msecs;
28
29	<	TimedCallable(Executor exec, Callable<T> func, long msecs) {
29	>	TimedCallable(ExecutorService exec, Callable<T> func, long msecs) {
30		this.exec = exec;
31		this.func = func;
32		this.msecs = msecs;
33		}
34
35		public T call() throws Exception {
36	<	Future<T> ftask = Executors.execute(exec, func);
36	>	Future<T> ftask = exec.submit(func);
37		try {
38		return ftask.get(msecs, TimeUnit.MILLISECONDS);
39		} finally {
#	Line 141 | Line 131 | public class ExecutorsTest extends JSR16
131		}
132
133		/**
134	+	* A new SingleThreadExecutor cannot be casted to concrete implementation
135	+	*/
136	+	public void testCastNewSingleThreadExecutor() {
137	+	ExecutorService e = Executors.newSingleThreadExecutor();
138	+	try {
139	+	ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
140	+	} catch (ClassCastException success) {
141	+	} finally {
142	+	joinPool(e);
143	+	}
144	+	}
145	+
146	+
147	+	/**
148		* A new newFixedThreadPool can execute runnables
149		*/
150		public void testNewFixedThreadPool1() {
#	Line 186 | Line 190 | public class ExecutorsTest extends JSR16
190		}
191		}
192
193	+
194		/**
195	<	* execute of runnable runs it to completion
195	>	* An unconfigurable newFixedThreadPool can execute runnables
196		*/
197	<	public void testExecuteRunnable() {
198	<	try {
199	<	Executor e = new DirectExecutor();
200	<	TrackedShortRunnable task = new TrackedShortRunnable();
201	<	assertFalse(task.done);
202	<	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	<	}
197	>	public void testunconfigurableExecutorService() {
198	>	ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
199	>	e.execute(new NoOpRunnable());
200	>	e.execute(new NoOpRunnable());
201	>	e.execute(new NoOpRunnable());
202	>	e.shutdown();
203		}
204
205		/**
206	<	* invoke of a runnable runs it to completion
206	>	* unconfigurableExecutorService(null) throws NPE
207		*/
208	<	public void testInvokeRunnable() {
208	>	public void testunconfigurableExecutorServiceNPE() {
209		try {
210	<	Executor e = new DirectExecutor();
216	<	TrackedShortRunnable task = new TrackedShortRunnable();
217	<	assertFalse(task.done);
218	<	Executors.invoke(e, task);
219	<	assertTrue(task.done);
210	>	ExecutorService e = Executors.unconfigurableExecutorService(null);
211		}
212	<	catch (ExecutionException ex) {
222	<	unexpectedException();
223	<	}
224	<	catch (InterruptedException ex) {
225	<	unexpectedException();
212	>	catch (NullPointerException success) {
213		}
214		}
215
216		/**
217	<	* execute of a callable runs it to completion
217	>	* unconfigurableScheduledExecutorService(null) throws NPE
218		*/
219	<	public void testExecuteCallable() {
219	>	public void testunconfigurableScheduledExecutorServiceNPE() {
220		try {
221	<	Executor e = new DirectExecutor();
235	<	Future<String> future = Executors.execute(e, new StringTask());
236	<	String result = future.get();
237	<	assertSame(TEST_STRING, result);
221	>	ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
222		}
223	<	catch (ExecutionException ex) {
240	<	unexpectedException();
241	<	}
242	<	catch (InterruptedException ex) {
243	<	unexpectedException();
223	>	catch (NullPointerException success) {
224		}
225		}
226
227	+
228		/**
229	<	* invoke of a collable runs it to completion
229	>	* a newSingleThreadScheduledExecutor successfully runs delayed task
230		*/
231	<	public void testInvokeCallable() {
232	<	try {
233	<	Executor e = new DirectExecutor();
234	<	String result = Executors.invoke(e, new StringTask());
235	<
236	<	assertSame(TEST_STRING, result);
231	>	public void testNewSingleThreadScheduledExecutor() {
232	>	try {
233	>	TrackedCallable callable = new TrackedCallable();
234	>	ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
235	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
236	>	assertFalse(callable.done);
237	>	Thread.sleep(MEDIUM_DELAY_MS);
238	>	assertTrue(callable.done);
239	>	assertEquals(Boolean.TRUE, f.get());
240	>	p1.shutdown();
241	>	joinPool(p1);
242	>	} catch(RejectedExecutionException e){}
243	>	catch(Exception e){
244	>	e.printStackTrace();
245	>	unexpectedException();
246		}
247	<	catch (ExecutionException ex) {
247	>	}
248	>
249	>	/**
250	>	* a newScheduledThreadPool successfully runs delayed task
251	>	*/
252	>	public void testnewScheduledThreadPool() {
253	>	try {
254	>	TrackedCallable callable = new TrackedCallable();
255	>	ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
256	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
257	>	assertFalse(callable.done);
258	>	Thread.sleep(MEDIUM_DELAY_MS);
259	>	assertTrue(callable.done);
260	>	assertEquals(Boolean.TRUE, f.get());
261	>	p1.shutdown();
262	>	joinPool(p1);
263	>	} catch(RejectedExecutionException e){}
264	>	catch(Exception e){
265	>	e.printStackTrace();
266		unexpectedException();
267		}
268	<	catch (InterruptedException ex) {
268	>	}
269	>
270	>	/**
271	>	* an unconfigurable  newScheduledThreadPool successfully runs delayed task
272	>	*/
273	>	public void testunconfigurableScheduledExecutorService() {
274	>	try {
275	>	TrackedCallable callable = new TrackedCallable();
276	>	ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
277	>	Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
278	>	assertFalse(callable.done);
279	>	Thread.sleep(MEDIUM_DELAY_MS);
280	>	assertTrue(callable.done);
281	>	assertEquals(Boolean.TRUE, f.get());
282	>	p1.shutdown();
283	>	joinPool(p1);
284	>	} catch(RejectedExecutionException e){}
285	>	catch(Exception e){
286	>	e.printStackTrace();
287		unexpectedException();
288		}
289		}
290
291		/**
292	<	* execute with null executor throws NPE
292	>	*  timeouts from execute will time out if they compute too long.
293		*/
294	<	public void testNullExecuteRunnable() {
294	>	public void testTimedCallable() {
295	>	int N = 10000;
296	>	ExecutorService executor = Executors.newSingleThreadExecutor();
297	>	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
298		try {
299	<	TrackedShortRunnable task = new TrackedShortRunnable();
300	<	assertFalse(task.done);
301	<	Future<String> future = Executors.execute(null, task, TEST_STRING);
302	<	shouldThrow();
303	<	}
304	<	catch (NullPointerException success) {
299	>	long startTime = System.currentTimeMillis();
300	>
301	>	long i = 0;
302	>	while (tasks.size() < N) {
303	>	tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
304	>	i += 10;
305	>	}
306	>
307	>	int iters = 0;
308	>	BigInteger sum = BigInteger.ZERO;
309	>	for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
310	>	try {
311	>	++iters;
312	>	sum = sum.add(it.next().call());
313	>	}
314	>	catch (TimeoutException success) {
315	>	assertTrue(iters > 0);
316	>	return;
317	>	}
318	>	catch (Exception e) {
319	>	unexpectedException();
320	>	}
321	>	}
322	>	// if by chance we didn't ever time out, total time must be small
323	>	long elapsed = System.currentTimeMillis() - startTime;
324	>	assertTrue(elapsed < N);
325		}
326	<	catch (Exception ex) {
327	<	unexpectedException();
326	>	finally {
327	>	joinPool(executor);
328		}
329		}
330
331	+
332		/**
333	<	* execute with a null runnable throws NPE
333	>	* ThreadPoolExecutor using defaultThreadFactory has
334	>	* specified group, priority, daemon status, and name
335		*/
336	<	public void testExecuteNullRunnable() {
336	>	public void testDefaultThreadFactory() {
337	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
338	>	Runnable r = new Runnable() {
339	>	public void run() {
340	>	try {
341	>	Thread current = Thread.currentThread();
342	>	threadAssertTrue(!current.isDaemon());
343	>	threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
344	>	ThreadGroup g = current.getThreadGroup();
345	>	SecurityManager s = System.getSecurityManager();
346	>	if (s != null)
347	>	threadAssertTrue(g == s.getThreadGroup());
348	>	else
349	>	threadAssertTrue(g == egroup);
350	>	String name = current.getName();
351	>	threadAssertTrue(name.endsWith("thread-1"));
352	>	} catch (SecurityException ok) {
353	>	// Also pass if not allowed to change setting
354	>	}
355	>	}
356	>	};
357	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
358	>
359	>	e.execute(r);
360	>	e.shutdown();
361		try {
362	<	Executor e = new DirectExecutor();
363	<	TrackedShortRunnable task = null;
289	<	Future<String> future = Executors.execute(e, task, TEST_STRING);
290	<	shouldThrow();
291	<	}
292	<	catch (NullPointerException success) {
293	<	}
294	<	catch (Exception ex) {
362	>	Thread.sleep(SHORT_DELAY_MS);
363	>	} catch (Exception eX) {
364		unexpectedException();
365	+	} finally {
366	+	joinPool(e);
367		}
368		}
369
370		/**
371	<	* invoke of a null runnable throws NPE
371	>	* ThreadPoolExecutor using privilegedThreadFactory has
372	>	* specified group, priority, daemon status, name,
373	>	* access control context and context class loader
374		*/
375	<	public void testInvokeNullRunnable() {
375	>	public void testPrivilegedThreadFactory() {
376	>	Policy savedPolicy = Policy.getPolicy();
377	>	AdjustablePolicy policy = new AdjustablePolicy();
378	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
379	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
380	>	Policy.setPolicy(policy);
381	>	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
382	>	final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
383	>	final AccessControlContext thisacc = AccessController.getContext();
384	>	Runnable r = new Runnable() {
385	>	public void run() {
386	>	try {
387	>	Thread current = Thread.currentThread();
388	>	threadAssertTrue(!current.isDaemon());
389	>	threadAssertTrue(current.getPriority() == Thread.NORM_PRIORITY);
390	>	ThreadGroup g = current.getThreadGroup();
391	>	SecurityManager s = System.getSecurityManager();
392	>	if (s != null)
393	>	threadAssertTrue(g == s.getThreadGroup());
394	>	else
395	>	threadAssertTrue(g == egroup);
396	>	String name = current.getName();
397	>	threadAssertTrue(name.endsWith("thread-1"));
398	>	threadAssertTrue(thisccl == current.getContextClassLoader());
399	>	threadAssertTrue(thisacc.equals(AccessController.getContext()));
400	>	} catch(SecurityException ok) {
401	>	// Also pass if not allowed to change settings
402	>	}
403	>	};
404	>	ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
405	>
406	>	Policy.setPolicy(savedPolicy);
407	>	e.execute(r);
408	>	e.shutdown();
409		try {
410	<	Executor e = new DirectExecutor();
411	<	TrackedShortRunnable task = null;
306	<	Executors.invoke(e, task);
307	<	shouldThrow();
308	<	}
309	<	catch (NullPointerException success) {
310	<	}
311	<	catch (Exception ex) {
410	>	Thread.sleep(SHORT_DELAY_MS);
411	>	} catch (Exception ex) {
412		unexpectedException();
413	+	} finally {
414	+	joinPool(e);
415	+	}
416	+
417	+	}
418	+
419	+	static class CheckCCL implements Callable<Object> {
420	+	public Object call() {
421	+	AccessControlContext acc = AccessController.getContext();
422	+	acc.checkPermission(new RuntimePermission("getContextClassLoader"));
423	+	return null;
424		}
425		}
426
427	+
428		/**
429	<	* execute of a null callable throws NPE
429	>	* Without class loader permissions, creating
430	>	* privilegedCallableUsingCurrentClassLoader throws ACE
431		*/
432	<	public void testExecuteNullCallable() {
432	>	public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
433	>	Policy savedPolicy = Policy.getPolicy();
434	>	AdjustablePolicy policy = new AdjustablePolicy();
435	>	Policy.setPolicy(policy);
436		try {
437	<	Executor e = new DirectExecutor();
322	<	StringTask t = null;
323	<	Future<String> future = Executors.execute(e, t);
437	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
438		shouldThrow();
439	<	}
440	<	catch (NullPointerException success) {
327	<	}
328	<	catch (Exception ex) {
439	>	} catch(AccessControlException success) {
440	>	} catch(Exception ex) {
441		unexpectedException();
442	+	}
443	+	finally {
444	+	Policy.setPolicy(savedPolicy);
445		}
446		}
447
448		/**
449	<	* invoke of a null callable throws NPE
449	>	* Without class loader permissions, calling
450	>	* privilegedCallableUsingCurrentClassLoader throws ACE
451		*/
452	<	public void testInvokeNullCallable() {
452	>	public void testprivilegedCallableUsingCCLWithPrivs() {
453	>	Policy savedPolicy = Policy.getPolicy();
454	>	AdjustablePolicy policy = new AdjustablePolicy();
455	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
456	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
457	>	Policy.setPolicy(policy);
458		try {
459	<	Executor e = new DirectExecutor();
460	<	StringTask t = null;
461	<	String result = Executors.invoke(e, t);
341	<	shouldThrow();
342	<	}
343	<	catch (NullPointerException success) {
344	<	}
345	<	catch (Exception ex) {
459	>	Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
460	>	task.call();
461	>	} catch(Exception ex) {
462		unexpectedException();
463	+	}
464	+	finally {
465	+	Policy.setPolicy(savedPolicy);
466		}
467		}
468
469		/**
470	<	*  execute(Executor, Runnable) throws RejectedExecutionException
352	<	*  if saturated.
470	>	* Without permissions, calling privilegedCallable throws ACE
471		*/
472	<	public void testExecute1() {
473	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
472	>	public void testprivilegedCallableWithNoPrivs() {
473	>	Policy savedPolicy = Policy.getPolicy();
474	>	AdjustablePolicy policy = new AdjustablePolicy();
475	>	Policy.setPolicy(policy);
476	>	Callable task = Executors.privilegedCallable(new CheckCCL());
477	>	Policy.setPolicy(savedPolicy);
478		try {
479	<
358	<	for(int i = 0; i < 5; ++i){
359	<	Executors.execute(p, new MediumRunnable(), Boolean.TRUE);
360	<	}
479	>	task.call();
480		shouldThrow();
481	<	} catch(RejectedExecutionException success){}
482	<	joinPool(p);
481	>	} catch(AccessControlException success) {
482	>	} catch(Exception ex) {
483	>	unexpectedException();
484	>	} finally {
485	>	}
486		}
487
488		/**
489	<	*  execute(Executor, Callable)throws RejectedExecutionException
368	<	*  if saturated.
489	>	* With permissions, calling privilegedCallable succeeds
490		*/
491	<	public void testExecute2() {
492	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
491	>	public void testprivilegedCallableWithPrivs() {
492	>	Policy savedPolicy = Policy.getPolicy();
493	>	AdjustablePolicy policy = new AdjustablePolicy();
494	>	policy.addPermission(new RuntimePermission("getContextClassLoader"));
495	>	policy.addPermission(new RuntimePermission("setContextClassLoader"));
496	>	Policy.setPolicy(policy);
497	>	Callable task = Executors.privilegedCallable(new CheckCCL());
498		try {
499	<	for(int i = 0; i < 5; ++i) {
500	<	Executors.execute(p, new SmallCallable());
501	<	}
502	<	shouldThrow();
503	<	} catch(RejectedExecutionException e){}
504	<	joinPool(p);
499	>	task.call();
500	>	} catch(Exception ex) {
501	>	unexpectedException();
502	>	} finally {
503	>	Policy.setPolicy(savedPolicy);
504	>	}
505		}
506
381	–
507		/**
508	<	*  invoke(Executor, Runnable) throws InterruptedException if
509	<	*  caller interrupted.
510	<	*/
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	<	});
508	>	* callable(Runnable) returns null when called
509	>	*/
510	>	public void testCallable1() {
511		try {
512	<	t.start();
513	<	Thread.sleep(SHORT_DELAY_MS);
514	<	t.interrupt();
411	<	} catch(Exception e){
512	>	Callable c = Executors.callable(new NoOpRunnable());
513	>	assertNull(c.call());
514	>	} catch(Exception ex) {
515		unexpectedException();
516		}
517	<	joinPool(p);
517	>
518		}
519
520		/**
521	<	*  invoke(Executor, Runnable) throws ExecutionException if
522	<	*  runnable throws exception.
523	<	*/
421	<	public void testInvoke3() {
422	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
521	>	* callable(Runnable, result) returns result when called
522	>	*/
523	>	public void testCallable2() {
524		try {
525	<	Runnable r = new Runnable() {
526	<	public void run() {
527	<	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){
525	>	Callable c = Executors.callable(new NoOpRunnable(), one);
526	>	assertEquals(one, c.call());
527	>	} catch(Exception ex) {
528		unexpectedException();
529		}
439	–	joinPool(p);
530		}
531
442	–
443	–
532		/**
533	<	*  invoke(Executor, Callable) throws InterruptedException if
534	<	*  callable throws exception
535	<	*/
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	<	});
533	>	* callable(PrivilegedAction) returns its result when called
534	>	*/
535	>	public void testCallable3() {
536		try {
537	<	t.start();
538	<	Thread.sleep(SHORT_DELAY_MS);
539	<	t.interrupt();
540	<	t.join();
477	<	} catch(InterruptedException e){
537	>	Callable c = Executors.callable(new PrivilegedAction() {
538	>	public Object run() { return one; }});
539	>	assertEquals(one, c.call());
540	>	} catch(Exception ex) {
541		unexpectedException();
542		}
480	–
481	–	joinPool(p);
543		}
544
545		/**
546	<	*  invoke(Executor, Callable) will throw ExecutionException
547	<	*  if callable throws exception
548	<	*/
488	<	public void testInvoke6() {
489	<	ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
490	<
546	>	* callable(PrivilegedExceptionAction) returns its result when called
547	>	*/
548	>	public void testCallable4() {
549		try {
550	<	Callable c = new Callable() {
551	<	public Object call() {
552	<	int i = 5/0;
553	<	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) {
550	>	Callable c = Executors.callable(new PrivilegedExceptionAction() {
551	>	public Object run() { return one; }});
552	>	assertEquals(one, c.call());
553	>	} catch(Exception ex) {
554		unexpectedException();
555		}
509	–	joinPool(p);
556		}
557
558
559	+	/**
560	+	* callable(null Runnable) throws NPE
561	+	*/
562	+	public void testCallableNPE1() {
563	+	try {
564	+	Runnable r = null;
565	+	Callable c = Executors.callable(r);
566	+	} catch (NullPointerException success) {
567	+	}
568	+	}
569
570		/**
571	<	*  timeouts from execute will time out if they compute too long.
572	<	*/
573	<	public void testTimedCallable() {
518	<	int N = 10000;
519	<	ExecutorService executor = Executors.newSingleThreadExecutor();
520	<	List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
571	>	* callable(null, result) throws NPE
572	>	*/
573	>	public void testCallableNPE2() {
574		try {
575	<	long startTime = System.currentTimeMillis();
576	<
577	<	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);
575	>	Runnable r = null;
576	>	Callable c = Executors.callable(r, one);
577	>	} catch (NullPointerException success) {
578		}
579	<	finally {
580	<	joinPool(executor);
579	>	}
580	>
581	>	/**
582	>	* callable(null PrivilegedAction) throws NPE
583	>	*/
584	>	public void testCallableNPE3() {
585	>	try {
586	>	PrivilegedAction r = null;
587	>	Callable c = Executors.callable(r);
588	>	} catch (NullPointerException success) {
589		}
590		}
591
592	<
592	>	/**
593	>	* callable(null PrivilegedExceptionAction) throws NPE
594	>	*/
595	>	public void testCallableNPE4() {
596	>	try {
597	>	PrivilegedExceptionAction r = null;
598	>	Callable c = Executors.callable(r);
599	>	} catch (NullPointerException success) {
600	>	}
601	>	}
602
603
604		}

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