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* http://creativecommons.org/publicdomain/zero/1.0/ |
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*/ |
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|
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< |
import junit.framework.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
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|
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import java.security.PrivilegedAction; |
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import java.security.PrivilegedExceptionAction; |
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import java.util.ArrayList; |
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import java.util.Collection; |
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import java.util.List; |
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import java.util.concurrent.Executors; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.AbstractExecutorService; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.Callable; |
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import java.util.concurrent.Future; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.ExecutionException; |
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import java.util.concurrent.CancellationException; |
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import java.util.concurrent.RejectedExecutionException; |
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import java.util.concurrent.Executors; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.ForkJoinPool; |
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import java.util.concurrent.ForkJoinTask; |
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import java.util.concurrent.ForkJoinWorkerThread; |
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import java.util.concurrent.Future; |
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import java.util.concurrent.RecursiveTask; |
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import java.util.concurrent.TimeUnit; |
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import java.util.concurrent.RejectedExecutionException; |
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import java.util.concurrent.atomic.AtomicBoolean; |
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import java.util.concurrent.locks.ReentrantLock; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.security.AccessControlException; |
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import java.security.Policy; |
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import java.security.PrivilegedAction; |
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import java.security.PrivilegedExceptionAction; |
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|
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import junit.framework.AssertionFailedError; |
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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|
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public class ForkJoinPoolTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
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main(suite(), args); |
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} |
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|
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public static Test suite() { |
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return new TestSuite(ForkJoinPoolTest.class); |
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} |
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/** |
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/* |
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* Testing coverage notes: |
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* |
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* 1. shutdown and related methods are tested via super.joinPool. |
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static final class FibTask extends RecursiveTask<Integer> { |
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final int number; |
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FibTask(int n) { number = n; } |
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public Integer compute() { |
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protected Integer compute() { |
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int n = number; |
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if (n <= 1) |
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return n; |
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this.locker = locker; |
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this.lock = lock; |
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} |
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public Integer compute() { |
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protected Integer compute() { |
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int n; |
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LockingFibTask f1 = null; |
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LockingFibTask f2 = null; |
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} |
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|
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/** |
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* awaitTermination on a non-shutdown pool times out |
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*/ |
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public void testAwaitTermination_timesOut() throws InterruptedException { |
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ForkJoinPool p = new ForkJoinPool(1); |
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assertFalse(p.isTerminated()); |
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assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS)); |
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assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS)); |
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assertFalse(p.awaitTermination(-1L, NANOSECONDS)); |
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assertFalse(p.awaitTermination(-1L, MILLISECONDS)); |
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assertFalse(p.awaitTermination(0L, NANOSECONDS)); |
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assertFalse(p.awaitTermination(0L, MILLISECONDS)); |
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long timeoutNanos = 999999L; |
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long startTime = System.nanoTime(); |
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assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS)); |
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assertTrue(System.nanoTime() - startTime >= timeoutNanos); |
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assertFalse(p.isTerminated()); |
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startTime = System.nanoTime(); |
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long timeoutMillis = timeoutMillis(); |
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assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS)); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
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assertFalse(p.isTerminated()); |
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p.shutdown(); |
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assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
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assertTrue(p.isTerminated()); |
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} |
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|
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/** |
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* setUncaughtExceptionHandler changes handler for uncaught exceptions. |
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* |
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* Additionally tests: Overriding ForkJoinWorkerThread.onStart |
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ExecutorService e = new ForkJoinPool(1); |
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try { |
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final AtomicBoolean done = new AtomicBoolean(false); |
421 |
< |
CheckedRunnable task = new CheckedRunnable() { |
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> |
Future<?> future = e.submit(new CheckedRunnable() { |
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public void realRun() { |
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done.set(true); |
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< |
}}; |
398 |
< |
Future<?> future = e.submit(task); |
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> |
}}); |
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assertNull(future.get()); |
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assertNull(future.get(0, MILLISECONDS)); |
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assertTrue(done.get()); |
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* A submitted privileged action runs to completion |
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*/ |
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public void testSubmitPrivilegedAction() throws Exception { |
484 |
+ |
final Callable callable = Executors.callable(new PrivilegedAction() { |
485 |
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public Object run() { return TEST_STRING; }}); |
486 |
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Runnable r = new CheckedRunnable() { |
487 |
< |
public void realRun() throws Exception { |
488 |
< |
ExecutorService e = new ForkJoinPool(1); |
489 |
< |
Future future = e.submit(Executors.callable(new PrivilegedAction() { |
490 |
< |
public Object run() { |
463 |
< |
return TEST_STRING; |
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< |
}})); |
465 |
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|
487 |
> |
public void realRun() throws Exception { |
488 |
> |
ExecutorService e = new ForkJoinPool(1); |
489 |
> |
try { |
490 |
> |
Future future = e.submit(callable); |
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|
assertSame(TEST_STRING, future.get()); |
492 |
< |
}}; |
492 |
> |
} finally { |
493 |
> |
joinPool(e); |
494 |
> |
} |
495 |
> |
}}; |
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|
|
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< |
runWithPermissions(r, |
470 |
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new RuntimePermission("modifyThread")); |
497 |
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runWithPermissions(r, new RuntimePermission("modifyThread")); |
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} |
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|
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/** |
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* A submitted privileged exception action runs to completion |
502 |
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*/ |
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public void testSubmitPrivilegedExceptionAction() throws Exception { |
504 |
+ |
final Callable callable = |
505 |
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Executors.callable(new PrivilegedExceptionAction() { |
506 |
+ |
public Object run() { return TEST_STRING; }}); |
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Runnable r = new CheckedRunnable() { |
508 |
< |
public void realRun() throws Exception { |
509 |
< |
ExecutorService e = new ForkJoinPool(1); |
510 |
< |
Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() { |
511 |
< |
public Object run() { |
482 |
< |
return TEST_STRING; |
483 |
< |
}})); |
484 |
< |
|
508 |
> |
public void realRun() throws Exception { |
509 |
> |
ExecutorService e = new ForkJoinPool(1); |
510 |
> |
try { |
511 |
> |
Future future = e.submit(callable); |
512 |
|
assertSame(TEST_STRING, future.get()); |
513 |
< |
}}; |
513 |
> |
} finally { |
514 |
> |
joinPool(e); |
515 |
> |
} |
516 |
> |
}}; |
517 |
|
|
518 |
|
runWithPermissions(r, new RuntimePermission("modifyThread")); |
519 |
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} |
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* A submitted failed privileged exception action reports exception |
523 |
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*/ |
524 |
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public void testSubmitFailedPrivilegedExceptionAction() throws Exception { |
525 |
+ |
final Callable callable = |
526 |
+ |
Executors.callable(new PrivilegedExceptionAction() { |
527 |
+ |
public Object run() { throw new IndexOutOfBoundsException(); }}); |
528 |
|
Runnable r = new CheckedRunnable() { |
529 |
< |
public void realRun() throws Exception { |
530 |
< |
ExecutorService e = new ForkJoinPool(1); |
531 |
< |
Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() { |
532 |
< |
public Object run() throws Exception { |
500 |
< |
throw new IndexOutOfBoundsException(); |
501 |
< |
}})); |
502 |
< |
|
529 |
> |
public void realRun() throws Exception { |
530 |
> |
ExecutorService e = new ForkJoinPool(1); |
531 |
> |
try { |
532 |
> |
Future future = e.submit(callable); |
533 |
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try { |
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future.get(); |
535 |
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shouldThrow(); |
536 |
|
} catch (ExecutionException success) { |
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assertTrue(success.getCause() instanceof IndexOutOfBoundsException); |
538 |
< |
}}}; |
538 |
> |
} |
539 |
> |
} finally { |
540 |
> |
joinPool(e); |
541 |
> |
} |
542 |
> |
}}; |
543 |
|
|
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|
runWithPermissions(r, new RuntimePermission("modifyThread")); |
545 |
|
} |
609 |
|
ForkJoinPool p = new ForkJoinPool(1); |
610 |
|
try { |
611 |
|
p.submit(new Callable() { |
612 |
< |
public Object call() { |
613 |
< |
int i = 5/0; |
580 |
< |
return Boolean.TRUE; |
581 |
< |
}}).get(); |
612 |
> |
public Object call() { throw new ArithmeticException(); }}) |
613 |
> |
.get(); |
614 |
|
shouldThrow(); |
615 |
|
} catch (ExecutionException success) { |
616 |
|
assertTrue(success.getCause() instanceof ArithmeticException); |
981 |
|
* timed invokeAll(c) returns results of all completed tasks in c |
982 |
|
*/ |
983 |
|
public void testTimedInvokeAll5() throws Throwable { |
984 |
< |
ExecutorService e = new ForkJoinPool(1); |
985 |
< |
try { |
984 |
> |
try (PoolCloser<ForkJoinPool> poolCloser |
985 |
> |
= new PoolCloser(new ForkJoinPool(1))) { |
986 |
> |
ForkJoinPool e = poolCloser.pool; |
987 |
|
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
988 |
|
l.add(new StringTask()); |
989 |
|
l.add(new StringTask()); |
990 |
|
List<Future<String>> futures |
991 |
< |
= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
991 |
> |
= e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
992 |
|
assertEquals(2, futures.size()); |
993 |
|
for (Future<String> future : futures) |
994 |
|
assertSame(TEST_STRING, future.get()); |
962 |
– |
} finally { |
963 |
– |
joinPool(e); |
995 |
|
} |
996 |
|
} |
997 |
|
|