5 |
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*/ |
6 |
|
|
7 |
|
import junit.framework.*; |
8 |
< |
import java.util.*; |
9 |
< |
import java.util.concurrent.Executor; |
8 |
> |
import java.util.ArrayList; |
9 |
> |
import java.util.Collection; |
10 |
> |
import java.util.List; |
11 |
|
import java.util.concurrent.Executors; |
12 |
|
import java.util.concurrent.ExecutorService; |
13 |
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import java.util.concurrent.AbstractExecutorService; |
20 |
|
import java.util.concurrent.ForkJoinPool; |
21 |
|
import java.util.concurrent.ForkJoinTask; |
22 |
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import java.util.concurrent.ForkJoinWorkerThread; |
22 |
– |
import java.util.concurrent.RecursiveAction; |
23 |
|
import java.util.concurrent.RecursiveTask; |
24 |
|
import java.util.concurrent.TimeUnit; |
25 |
< |
import java.util.concurrent.locks.*; |
26 |
< |
import java.security.*; |
25 |
> |
import java.util.concurrent.locks.ReentrantLock; |
26 |
> |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
27 |
> |
import java.security.AccessControlException; |
28 |
> |
import java.security.Policy; |
29 |
> |
import java.security.PrivilegedAction; |
30 |
> |
import java.security.PrivilegedExceptionAction; |
31 |
|
|
32 |
|
public class ForkJoinPoolTest extends JSR166TestCase { |
33 |
|
public static void main(String[] args) { |
162 |
|
public void testDefaultInitialState() { |
163 |
|
ForkJoinPool p = new ForkJoinPool(1); |
164 |
|
try { |
165 |
< |
assertTrue(p.getFactory() == |
166 |
< |
ForkJoinPool.defaultForkJoinWorkerThreadFactory); |
165 |
> |
assertSame(ForkJoinPool.defaultForkJoinWorkerThreadFactory, |
166 |
> |
p.getFactory()); |
167 |
|
assertTrue(p.isQuiescent()); |
168 |
|
assertFalse(p.getAsyncMode()); |
169 |
< |
assertTrue(p.getActiveThreadCount() == 0); |
170 |
< |
assertTrue(p.getStealCount() == 0); |
171 |
< |
assertTrue(p.getQueuedTaskCount() == 0); |
172 |
< |
assertTrue(p.getQueuedSubmissionCount() == 0); |
169 |
> |
assertEquals(0, p.getActiveThreadCount()); |
170 |
> |
assertEquals(0, p.getStealCount()); |
171 |
> |
assertEquals(0, p.getQueuedTaskCount()); |
172 |
> |
assertEquals(0, p.getQueuedSubmissionCount()); |
173 |
|
assertFalse(p.hasQueuedSubmissions()); |
174 |
|
assertFalse(p.isShutdown()); |
175 |
|
assertFalse(p.isTerminating()); |
206 |
|
public void testGetParallelism() { |
207 |
|
ForkJoinPool p = new ForkJoinPool(1); |
208 |
|
try { |
209 |
< |
assertTrue(p.getParallelism() == 1); |
209 |
> |
assertEquals(1, p.getParallelism()); |
210 |
|
} finally { |
211 |
|
joinPool(p); |
212 |
|
} |
218 |
|
public void testGetPoolSize() { |
219 |
|
ForkJoinPool p = new ForkJoinPool(1); |
220 |
|
try { |
221 |
< |
assertTrue(p.getActiveThreadCount() == 0); |
221 |
> |
assertEquals(0, p.getActiveThreadCount()); |
222 |
|
Future<String> future = p.submit(new StringTask()); |
223 |
< |
assertTrue(p.getPoolSize() == 1); |
223 |
> |
assertEquals(1, p.getPoolSize()); |
224 |
|
} finally { |
225 |
|
joinPool(p); |
226 |
|
} |
233 |
|
* performs its defined action |
234 |
|
*/ |
235 |
|
public void testSetUncaughtExceptionHandler() throws InterruptedException { |
236 |
< |
MyHandler eh = new MyHandler(); |
237 |
< |
ForkJoinPool p = new ForkJoinPool(1, new FailingThreadFactory(), eh, false); |
238 |
< |
try { |
239 |
< |
assert(eh == p.getUncaughtExceptionHandler()); |
240 |
< |
p.execute(new FailingTask()); |
241 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
242 |
< |
assertTrue(eh.catches > 0); |
236 |
> |
final CountDownLatch uehInvoked = new CountDownLatch(1); |
237 |
> |
final Thread.UncaughtExceptionHandler eh = |
238 |
> |
new Thread.UncaughtExceptionHandler() { |
239 |
> |
public void uncaughtException(Thread t, Throwable e) { |
240 |
> |
uehInvoked.countDown(); |
241 |
> |
}}; |
242 |
> |
ForkJoinPool p = new ForkJoinPool(1, new FailingThreadFactory(), |
243 |
> |
eh, false); |
244 |
> |
try { |
245 |
> |
assertSame(eh, p.getUncaughtExceptionHandler()); |
246 |
> |
p.execute(new FibTask(8)); |
247 |
> |
assertTrue(uehInvoked.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
248 |
|
} finally { |
249 |
< |
p.shutdownNow(); |
249 |
> |
p.shutdownNow(); // failure might have prevented processing task |
250 |
|
joinPool(p); |
251 |
|
} |
252 |
|
} |
259 |
|
public void testisQuiescent() throws InterruptedException { |
260 |
|
ForkJoinPool p = new ForkJoinPool(2); |
261 |
|
try { |
262 |
+ |
assertTrue(p.isQuiescent()); |
263 |
|
p.invoke(new FibTask(20)); |
264 |
< |
assertTrue(p.getFactory() == |
265 |
< |
ForkJoinPool.defaultForkJoinWorkerThreadFactory); |
266 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
264 |
> |
assertSame(ForkJoinPool.defaultForkJoinWorkerThreadFactory, |
265 |
> |
p.getFactory()); |
266 |
> |
Thread.sleep(SMALL_DELAY_MS); |
267 |
|
assertTrue(p.isQuiescent()); |
268 |
|
assertFalse(p.getAsyncMode()); |
269 |
< |
assertTrue(p.getActiveThreadCount() == 0); |
270 |
< |
assertTrue(p.getQueuedTaskCount() == 0); |
271 |
< |
assertTrue(p.getQueuedSubmissionCount() == 0); |
269 |
> |
assertEquals(0, p.getActiveThreadCount()); |
270 |
> |
assertEquals(0, p.getQueuedTaskCount()); |
271 |
> |
assertEquals(0, p.getQueuedSubmissionCount()); |
272 |
|
assertFalse(p.hasQueuedSubmissions()); |
273 |
|
assertFalse(p.isShutdown()); |
274 |
|
assertFalse(p.isTerminating()); |
285 |
|
ForkJoinPool p = new ForkJoinPool(1); |
286 |
|
try { |
287 |
|
ForkJoinTask<Integer> f = p.submit(new FibTask(8)); |
288 |
< |
int r = f.get(); |
279 |
< |
assertTrue(r == 21); |
288 |
> |
assertEquals(21, (int) f.get()); |
289 |
|
} finally { |
290 |
|
joinPool(p); |
291 |
|
} |
299 |
|
try { |
300 |
|
p.shutdown(); |
301 |
|
assertTrue(p.isShutdown()); |
302 |
< |
ForkJoinTask<Integer> f = p.submit(new FibTask(8)); |
303 |
< |
shouldThrow(); |
304 |
< |
} catch (RejectedExecutionException success) { |
302 |
> |
try { |
303 |
> |
ForkJoinTask<Integer> f = p.submit(new FibTask(8)); |
304 |
> |
shouldThrow(); |
305 |
> |
} catch (RejectedExecutionException success) {} |
306 |
|
} finally { |
307 |
|
joinPool(p); |
308 |
|
} |
316 |
|
try { |
317 |
|
ReentrantLock lock = new ReentrantLock(); |
318 |
|
ManagedLocker locker = new ManagedLocker(lock); |
319 |
< |
ForkJoinTask<Integer> f = new LockingFibTask(30, locker, lock); |
319 |
> |
ForkJoinTask<Integer> f = new LockingFibTask(20, locker, lock); |
320 |
|
p.execute(f); |
321 |
< |
int r = f.get(); |
312 |
< |
assertTrue(r == 832040); |
321 |
> |
assertEquals(6765, (int) f.get()); |
322 |
|
} finally { |
323 |
|
p.shutdownNow(); // don't wait out shutdown |
324 |
|
} |
330 |
|
public void testPollSubmission() { |
331 |
|
SubFJP p = new SubFJP(); |
332 |
|
try { |
333 |
< |
ForkJoinTask a = p.submit(new MediumRunnable()); |
334 |
< |
ForkJoinTask b = p.submit(new MediumRunnable()); |
335 |
< |
ForkJoinTask c = p.submit(new MediumRunnable()); |
333 |
> |
ForkJoinTask a = p.submit(new ShortRunnable()); |
334 |
> |
ForkJoinTask b = p.submit(new ShortRunnable()); |
335 |
> |
ForkJoinTask c = p.submit(new ShortRunnable()); |
336 |
|
ForkJoinTask r = p.pollSubmission(); |
337 |
|
assertTrue(r == a || r == b || r == c); |
338 |
|
assertFalse(r.isDone()); |
347 |
|
public void testDrainTasksTo() { |
348 |
|
SubFJP p = new SubFJP(); |
349 |
|
try { |
350 |
< |
ForkJoinTask a = p.submit(new MediumRunnable()); |
351 |
< |
ForkJoinTask b = p.submit(new MediumRunnable()); |
352 |
< |
ForkJoinTask c = p.submit(new MediumRunnable()); |
350 |
> |
ForkJoinTask a = p.submit(new ShortRunnable()); |
351 |
> |
ForkJoinTask b = p.submit(new ShortRunnable()); |
352 |
> |
ForkJoinTask c = p.submit(new ShortRunnable()); |
353 |
|
ArrayList<ForkJoinTask> al = new ArrayList(); |
354 |
|
p.drainTasksTo(al); |
355 |
|
assertTrue(al.size() > 0); |
371 |
|
public void testExecuteRunnable() throws Throwable { |
372 |
|
ExecutorService e = new ForkJoinPool(1); |
373 |
|
try { |
374 |
< |
TrackedShortRunnable task = new TrackedShortRunnable(); |
375 |
< |
assertFalse(task.done); |
374 |
> |
TrackedRunnable task = trackedRunnable(SHORT_DELAY_MS); |
375 |
> |
assertFalse(task.isDone()); |
376 |
|
Future<?> future = e.submit(task); |
377 |
|
future.get(); |
378 |
< |
assertTrue(task.done); |
378 |
> |
assertTrue(task.isDone()); |
379 |
|
} finally { |
380 |
|
joinPool(e); |
381 |
|
} |
532 |
|
public void testExecuteNullRunnable() { |
533 |
|
ExecutorService e = new ForkJoinPool(1); |
534 |
|
try { |
535 |
< |
TrackedShortRunnable task = null; |
527 |
< |
Future<?> future = e.submit(task); |
535 |
> |
Future<?> future = e.submit((Runnable) null); |
536 |
|
shouldThrow(); |
537 |
|
} catch (NullPointerException success) { |
538 |
|
} finally { |
547 |
|
public void testSubmitNullCallable() { |
548 |
|
ExecutorService e = new ForkJoinPool(1); |
549 |
|
try { |
550 |
< |
StringTask t = null; |
543 |
< |
Future<String> future = e.submit(t); |
550 |
> |
Future<String> future = e.submit((Callable) null); |
551 |
|
shouldThrow(); |
552 |
|
} catch (NullPointerException success) { |
553 |
|
} finally { |
557 |
|
|
558 |
|
|
559 |
|
/** |
560 |
< |
* Blocking on submit(callable) throws InterruptedException if |
554 |
< |
* caller interrupted. |
560 |
> |
* submit(callable).get() throws InterruptedException if interrupted |
561 |
|
*/ |
562 |
|
public void testInterruptedSubmit() throws InterruptedException { |
563 |
< |
final ForkJoinPool p = new ForkJoinPool(1); |
564 |
< |
|
565 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
566 |
< |
public void realRun() throws Throwable { |
567 |
< |
p.submit(new CheckedCallable<Object>() { |
568 |
< |
public Object realCall() throws Throwable { |
569 |
< |
try { |
570 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
571 |
< |
} catch (InterruptedException ok) { |
572 |
< |
} |
573 |
< |
return null; |
574 |
< |
}}).get(); |
575 |
< |
}}); |
576 |
< |
|
577 |
< |
t.start(); |
578 |
< |
Thread.sleep(SHORT_DELAY_MS); |
579 |
< |
t.interrupt(); |
580 |
< |
t.join(); |
581 |
< |
p.shutdownNow(); |
582 |
< |
joinPool(p); |
563 |
> |
final CountDownLatch submitted = new CountDownLatch(1); |
564 |
> |
final CountDownLatch quittingTime = new CountDownLatch(1); |
565 |
> |
final ExecutorService p = new ForkJoinPool(1); |
566 |
> |
final Callable<Void> awaiter = new CheckedCallable<Void>() { |
567 |
> |
public Void realCall() throws InterruptedException { |
568 |
> |
assertTrue(quittingTime.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
569 |
> |
return null; |
570 |
> |
}}; |
571 |
> |
try { |
572 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
573 |
> |
public void realRun() throws Exception { |
574 |
> |
Future<Void> future = p.submit(awaiter); |
575 |
> |
submitted.countDown(); |
576 |
> |
future.get(); |
577 |
> |
}}); |
578 |
> |
t.start(); |
579 |
> |
assertTrue(submitted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
580 |
> |
t.interrupt(); |
581 |
> |
t.join(); |
582 |
> |
} finally { |
583 |
> |
quittingTime.countDown(); |
584 |
> |
joinPool(p); |
585 |
> |
} |
586 |
|
} |
587 |
|
|
588 |
|
/** |
791 |
|
public void testTimedInvokeAny1() throws Throwable { |
792 |
|
ExecutorService e = new ForkJoinPool(1); |
793 |
|
try { |
794 |
< |
e.invokeAny(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
794 |
> |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
795 |
|
shouldThrow(); |
796 |
|
} catch (NullPointerException success) { |
797 |
|
} finally { |
822 |
|
ExecutorService e = new ForkJoinPool(1); |
823 |
|
try { |
824 |
|
e.invokeAny(new ArrayList<Callable<String>>(), |
825 |
< |
MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
825 |
> |
MEDIUM_DELAY_MS, MILLISECONDS); |
826 |
|
shouldThrow(); |
827 |
|
} catch (IllegalArgumentException success) { |
828 |
|
} finally { |
840 |
|
l.add(latchAwaitingStringTask(latch)); |
841 |
|
l.add(null); |
842 |
|
try { |
843 |
< |
e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
843 |
> |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
844 |
|
shouldThrow(); |
845 |
|
} catch (NullPointerException success) { |
846 |
|
} finally { |
857 |
|
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
858 |
|
l.add(new NPETask()); |
859 |
|
try { |
860 |
< |
e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
860 |
> |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
861 |
|
shouldThrow(); |
862 |
|
} catch (ExecutionException success) { |
863 |
|
assertTrue(success.getCause() instanceof NullPointerException); |
875 |
|
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
876 |
|
l.add(new StringTask()); |
877 |
|
l.add(new StringTask()); |
878 |
< |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
878 |
> |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
879 |
|
assertSame(TEST_STRING, result); |
880 |
|
} finally { |
881 |
|
joinPool(e); |
888 |
|
public void testTimedInvokeAll1() throws Throwable { |
889 |
|
ExecutorService e = new ForkJoinPool(1); |
890 |
|
try { |
891 |
< |
e.invokeAll(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
891 |
> |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
892 |
|
shouldThrow(); |
893 |
|
} catch (NullPointerException success) { |
894 |
|
} finally { |
920 |
|
try { |
921 |
|
List<Future<String>> r |
922 |
|
= e.invokeAll(new ArrayList<Callable<String>>(), |
923 |
< |
MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
923 |
> |
MEDIUM_DELAY_MS, MILLISECONDS); |
924 |
|
assertTrue(r.isEmpty()); |
925 |
|
} finally { |
926 |
|
joinPool(e); |
936 |
|
l.add(new StringTask()); |
937 |
|
l.add(null); |
938 |
|
try { |
939 |
< |
e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
939 |
> |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
940 |
|
shouldThrow(); |
941 |
|
} catch (NullPointerException success) { |
942 |
|
} finally { |
952 |
|
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
953 |
|
l.add(new NPETask()); |
954 |
|
List<Future<String>> futures |
955 |
< |
= e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
955 |
> |
= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
956 |
|
assertEquals(1, futures.size()); |
957 |
|
try { |
958 |
|
futures.get(0).get(); |
974 |
|
l.add(new StringTask()); |
975 |
|
l.add(new StringTask()); |
976 |
|
List<Future<String>> futures |
977 |
< |
= e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
977 |
> |
= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
978 |
|
assertEquals(2, futures.size()); |
979 |
|
for (Future<String> future : futures) |
980 |
|
assertSame(TEST_STRING, future.get()); |