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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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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 java.util.*; |
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import java.util.concurrent.*; |
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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.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.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.RecursiveTask; |
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import java.util.concurrent.TimeUnit; |
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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.util.concurrent.locks.*; |
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import java.security.*; |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
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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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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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junit.textui.TestRunner.run(suite()); |
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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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/* |
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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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// Some classes to test extension and factory methods |
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|
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static class MyHandler implements Thread.UncaughtExceptionHandler { |
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int catches = 0; |
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volatile int catches = 0; |
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public void uncaughtException(Thread t, Throwable e) { |
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++catches; |
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} |
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// to test handlers |
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static class FailingFJWSubclass extends ForkJoinWorkerThread { |
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public FailingFJWSubclass(ForkJoinPool p) { super(p) ; } |
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protected void onStart() { throw new Error(); } |
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protected void onStart() { super.onStart(); throw new Error(); } |
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} |
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|
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static class FailingThreadFactory |
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implements ForkJoinPool.ForkJoinWorkerThreadFactory { |
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int calls = 0; |
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volatile int calls = 0; |
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public ForkJoinWorkerThread newThread(ForkJoinPool p) { |
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if (++calls > 1) return null; |
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return new FailingFJWSubclass(p); |
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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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* tasks, and quiescent running state. |
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*/ |
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public void testDefaultInitialState() { |
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ForkJoinPool p = null; |
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ForkJoinPool p = new ForkJoinPool(1); |
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try { |
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p = new ForkJoinPool(1); |
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assertTrue(p.getFactory() == |
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ForkJoinPool.defaultForkJoinWorkerThreadFactory); |
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assertTrue(p.isQuiescent()); |
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assertTrue(p.getMaintainsParallelism()); |
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assertSame(ForkJoinPool.defaultForkJoinWorkerThreadFactory, |
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p.getFactory()); |
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assertFalse(p.getAsyncMode()); |
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assertTrue(p.getActiveThreadCount() == 0); |
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assertTrue(p.getStealCount() == 0); |
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assertTrue(p.getQueuedTaskCount() == 0); |
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assertTrue(p.getQueuedSubmissionCount() == 0); |
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assertEquals(0, p.getActiveThreadCount()); |
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assertEquals(0, p.getStealCount()); |
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assertEquals(0, p.getQueuedTaskCount()); |
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assertEquals(0, p.getQueuedSubmissionCount()); |
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assertFalse(p.hasQueuedSubmissions()); |
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assertFalse(p.isShutdown()); |
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assertFalse(p.isTerminating()); |
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try { |
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new ForkJoinPool(-1); |
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shouldThrow(); |
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} |
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catch (IllegalArgumentException success) {} |
190 |
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} catch (IllegalArgumentException success) {} |
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} |
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|
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/** |
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*/ |
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public void testConstructor2() { |
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try { |
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new ForkJoinPool(1, null); |
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new ForkJoinPool(1, null, null, false); |
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shouldThrow(); |
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} catch (NullPointerException success) { |
185 |
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} |
200 |
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} catch (NullPointerException success) {} |
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} |
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|
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|
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/** |
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* getParallelism returns size set in constructor |
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*/ |
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public void testGetParallelism() { |
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ForkJoinPool p = null; |
194 |
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try { |
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p = new ForkJoinPool(1); |
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assertTrue(p.getParallelism() == 1); |
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} finally { |
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joinPool(p); |
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} |
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} |
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|
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/** |
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* setParallelism changes reported parallelism level. |
204 |
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*/ |
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public void testSetParallelism() { |
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ForkJoinPool p = null; |
207 |
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try { |
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p = new ForkJoinPool(1); |
209 |
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assertTrue(p.getParallelism() == 1); |
210 |
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p.setParallelism(2); |
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assertTrue(p.getParallelism() == 2); |
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} finally { |
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joinPool(p); |
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} |
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} |
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|
217 |
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/** |
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* setParallelism with argument <= 0 throws exception |
219 |
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*/ |
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public void testSetParallelism2() { |
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ForkJoinPool p = null; |
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ForkJoinPool p = new ForkJoinPool(1); |
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try { |
209 |
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p = new ForkJoinPool(1); |
224 |
< |
assertTrue(p.getParallelism() == 1); |
225 |
< |
p.setParallelism(-2); |
226 |
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shouldThrow(); |
227 |
< |
} catch (IllegalArgumentException success) { |
209 |
> |
assertEquals(1, p.getParallelism()); |
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} finally { |
211 |
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joinPool(p); |
212 |
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} |
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* getPoolSize returns number of started workers. |
217 |
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*/ |
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public void testGetPoolSize() { |
219 |
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ForkJoinPool p = null; |
219 |
> |
ForkJoinPool p = new ForkJoinPool(1); |
220 |
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try { |
221 |
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p = new ForkJoinPool(1); |
240 |
< |
assertTrue(p.getPoolSize() == 0); |
221 |
> |
assertEquals(0, p.getActiveThreadCount()); |
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Future<String> future = p.submit(new StringTask()); |
223 |
< |
assertTrue(p.getPoolSize() == 1); |
243 |
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|
244 |
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} finally { |
245 |
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joinPool(p); |
246 |
< |
} |
247 |
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} |
248 |
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|
249 |
< |
/** |
250 |
< |
* setMaximumPoolSize changes size reported by getMaximumPoolSize. |
251 |
< |
*/ |
252 |
< |
public void testSetMaximumPoolSize() { |
253 |
< |
ForkJoinPool p = null; |
254 |
< |
try { |
255 |
< |
p = new ForkJoinPool(1); |
256 |
< |
p.setMaximumPoolSize(2); |
257 |
< |
assertTrue(p.getMaximumPoolSize() == 2); |
258 |
< |
} finally { |
259 |
< |
joinPool(p); |
260 |
< |
} |
261 |
< |
} |
262 |
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|
263 |
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/** |
264 |
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* setMaximumPoolSize with argument <= 0 throws exception |
265 |
< |
*/ |
266 |
< |
public void testSetMaximumPoolSize2() { |
267 |
< |
ForkJoinPool p = null; |
268 |
< |
try { |
269 |
< |
p = new ForkJoinPool(1); |
270 |
< |
p.setMaximumPoolSize(-2); |
271 |
< |
shouldThrow(); |
272 |
< |
} catch (IllegalArgumentException success) { |
273 |
< |
} finally { |
274 |
< |
joinPool(p); |
275 |
< |
} |
276 |
< |
} |
277 |
< |
|
278 |
< |
/** |
279 |
< |
* setMaintainsParallelism changes policy reported by |
280 |
< |
* getMaintainsParallelism. |
281 |
< |
*/ |
282 |
< |
public void testSetMaintainsParallelism() { |
283 |
< |
ForkJoinPool p = null; |
284 |
< |
try { |
285 |
< |
p = new ForkJoinPool(1); |
286 |
< |
p.setMaintainsParallelism(false); |
287 |
< |
assertFalse(p.getMaintainsParallelism()); |
223 |
> |
assertEquals(1, p.getPoolSize()); |
224 |
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} finally { |
225 |
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joinPool(p); |
226 |
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} |
227 |
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} |
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|
229 |
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/** |
230 |
< |
* setAsyncMode changes policy reported by |
295 |
< |
* getAsyncMode. |
230 |
> |
* awaitTermination on a non-shutdown pool times out |
231 |
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*/ |
232 |
< |
public void testSetAsyncMode() { |
233 |
< |
ForkJoinPool p = null; |
234 |
< |
try { |
235 |
< |
p = new ForkJoinPool(1); |
236 |
< |
p.setAsyncMode(true); |
237 |
< |
assertTrue(p.getAsyncMode()); |
238 |
< |
} finally { |
239 |
< |
joinPool(p); |
240 |
< |
} |
232 |
> |
public void testAwaitTermination_timesOut() throws InterruptedException { |
233 |
> |
ForkJoinPool p = new ForkJoinPool(1); |
234 |
> |
assertFalse(p.isTerminated()); |
235 |
> |
assertFalse(p.awaitTermination(Long.MIN_VALUE, NANOSECONDS)); |
236 |
> |
assertFalse(p.awaitTermination(Long.MIN_VALUE, MILLISECONDS)); |
237 |
> |
assertFalse(p.awaitTermination(-1L, NANOSECONDS)); |
238 |
> |
assertFalse(p.awaitTermination(-1L, MILLISECONDS)); |
239 |
> |
assertFalse(p.awaitTermination(0L, NANOSECONDS)); |
240 |
> |
assertFalse(p.awaitTermination(0L, MILLISECONDS)); |
241 |
> |
long timeoutNanos = 999999L; |
242 |
> |
long startTime = System.nanoTime(); |
243 |
> |
assertFalse(p.awaitTermination(timeoutNanos, NANOSECONDS)); |
244 |
> |
assertTrue(System.nanoTime() - startTime >= timeoutNanos); |
245 |
> |
assertFalse(p.isTerminated()); |
246 |
> |
startTime = System.nanoTime(); |
247 |
> |
long timeoutMillis = timeoutMillis(); |
248 |
> |
assertFalse(p.awaitTermination(timeoutMillis, MILLISECONDS)); |
249 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
250 |
> |
assertFalse(p.isTerminated()); |
251 |
> |
p.shutdown(); |
252 |
> |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
253 |
> |
assertTrue(p.isTerminated()); |
254 |
|
} |
255 |
|
|
256 |
|
/** |
260 |
|
* performs its defined action |
261 |
|
*/ |
262 |
|
public void testSetUncaughtExceptionHandler() throws InterruptedException { |
263 |
< |
ForkJoinPool p = null; |
264 |
< |
try { |
265 |
< |
p = new ForkJoinPool(1, new FailingThreadFactory()); |
266 |
< |
MyHandler eh = new MyHandler(); |
267 |
< |
p.setUncaughtExceptionHandler(eh); |
268 |
< |
assertEquals(eh, p.getUncaughtExceptionHandler()); |
269 |
< |
p.execute(new FailingTask()); |
270 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
271 |
< |
assertTrue(eh.catches > 0); |
263 |
> |
final CountDownLatch uehInvoked = new CountDownLatch(1); |
264 |
> |
final Thread.UncaughtExceptionHandler eh = |
265 |
> |
new Thread.UncaughtExceptionHandler() { |
266 |
> |
public void uncaughtException(Thread t, Throwable e) { |
267 |
> |
uehInvoked.countDown(); |
268 |
> |
}}; |
269 |
> |
ForkJoinPool p = new ForkJoinPool(1, new FailingThreadFactory(), |
270 |
> |
eh, false); |
271 |
> |
try { |
272 |
> |
assertSame(eh, p.getUncaughtExceptionHandler()); |
273 |
> |
try { |
274 |
> |
p.execute(new FibTask(8)); |
275 |
> |
assertTrue(uehInvoked.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
276 |
> |
} catch (RejectedExecutionException ok) { |
277 |
> |
} |
278 |
|
} finally { |
279 |
+ |
p.shutdownNow(); // failure might have prevented processing task |
280 |
|
joinPool(p); |
281 |
|
} |
282 |
|
} |
283 |
|
|
284 |
|
/** |
285 |
< |
* setUncaughtExceptionHandler of null removes handler |
285 |
> |
* After invoking a single task, isQuiescent eventually becomes |
286 |
> |
* true, at which time queues are empty, threads are not active, |
287 |
> |
* the task has completed successfully, and construction |
288 |
> |
* parameters continue to hold |
289 |
|
*/ |
290 |
< |
public void testSetUncaughtExceptionHandler2() { |
291 |
< |
ForkJoinPool p = null; |
290 |
> |
public void testIsQuiescent() throws Exception { |
291 |
> |
ForkJoinPool p = new ForkJoinPool(2); |
292 |
|
try { |
293 |
< |
p = new ForkJoinPool(1); |
294 |
< |
p.setUncaughtExceptionHandler(null); |
295 |
< |
assertNull(p.getUncaughtExceptionHandler()); |
296 |
< |
} finally { |
297 |
< |
joinPool(p); |
298 |
< |
} |
299 |
< |
} |
300 |
< |
|
293 |
> |
assertTrue(p.isQuiescent()); |
294 |
> |
long startTime = System.nanoTime(); |
295 |
> |
FibTask f = new FibTask(20); |
296 |
> |
p.invoke(f); |
297 |
> |
assertSame(ForkJoinPool.defaultForkJoinWorkerThreadFactory, |
298 |
> |
p.getFactory()); |
299 |
> |
while (! p.isQuiescent()) { |
300 |
> |
if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
301 |
> |
throw new AssertionFailedError("timed out"); |
302 |
> |
assertFalse(p.getAsyncMode()); |
303 |
> |
assertFalse(p.isShutdown()); |
304 |
> |
assertFalse(p.isTerminating()); |
305 |
> |
assertFalse(p.isTerminated()); |
306 |
> |
Thread.yield(); |
307 |
> |
} |
308 |
|
|
344 |
– |
/** |
345 |
– |
* After invoking a single task, isQuiescent is true, |
346 |
– |
* queues are empty, threads are not active, and |
347 |
– |
* construction parameters continue to hold |
348 |
– |
*/ |
349 |
– |
public void testisQuiescent() throws InterruptedException { |
350 |
– |
ForkJoinPool p = null; |
351 |
– |
try { |
352 |
– |
p = new ForkJoinPool(2); |
353 |
– |
p.invoke(new FibTask(20)); |
354 |
– |
assertTrue(p.getFactory() == |
355 |
– |
ForkJoinPool.defaultForkJoinWorkerThreadFactory); |
356 |
– |
Thread.sleep(MEDIUM_DELAY_MS); |
309 |
|
assertTrue(p.isQuiescent()); |
358 |
– |
assertTrue(p.getMaintainsParallelism()); |
310 |
|
assertFalse(p.getAsyncMode()); |
311 |
< |
assertTrue(p.getActiveThreadCount() == 0); |
312 |
< |
assertTrue(p.getQueuedTaskCount() == 0); |
313 |
< |
assertTrue(p.getQueuedSubmissionCount() == 0); |
311 |
> |
assertEquals(0, p.getActiveThreadCount()); |
312 |
> |
assertEquals(0, p.getQueuedTaskCount()); |
313 |
> |
assertEquals(0, p.getQueuedSubmissionCount()); |
314 |
|
assertFalse(p.hasQueuedSubmissions()); |
315 |
|
assertFalse(p.isShutdown()); |
316 |
|
assertFalse(p.isTerminating()); |
317 |
|
assertFalse(p.isTerminated()); |
318 |
+ |
assertTrue(f.isDone()); |
319 |
+ |
assertEquals(6765, (int) f.get()); |
320 |
|
} finally { |
321 |
|
joinPool(p); |
322 |
|
} |
326 |
|
* Completed submit(ForkJoinTask) returns result |
327 |
|
*/ |
328 |
|
public void testSubmitForkJoinTask() throws Throwable { |
329 |
< |
ForkJoinPool p = null; |
329 |
> |
ForkJoinPool p = new ForkJoinPool(1); |
330 |
|
try { |
378 |
– |
p = new ForkJoinPool(1); |
331 |
|
ForkJoinTask<Integer> f = p.submit(new FibTask(8)); |
332 |
< |
int r = f.get(); |
381 |
< |
assertTrue(r == 21); |
332 |
> |
assertEquals(21, (int) f.get()); |
333 |
|
} finally { |
334 |
|
joinPool(p); |
335 |
|
} |
339 |
|
* A task submitted after shutdown is rejected |
340 |
|
*/ |
341 |
|
public void testSubmitAfterShutdown() { |
342 |
< |
ForkJoinPool p = null; |
342 |
> |
ForkJoinPool p = new ForkJoinPool(1); |
343 |
|
try { |
393 |
– |
p = new ForkJoinPool(1); |
344 |
|
p.shutdown(); |
345 |
|
assertTrue(p.isShutdown()); |
346 |
< |
ForkJoinTask<Integer> f = p.submit(new FibTask(8)); |
347 |
< |
shouldThrow(); |
348 |
< |
} catch (RejectedExecutionException success) { |
346 |
> |
try { |
347 |
> |
ForkJoinTask<Integer> f = p.submit(new FibTask(8)); |
348 |
> |
shouldThrow(); |
349 |
> |
} catch (RejectedExecutionException success) {} |
350 |
|
} finally { |
351 |
|
joinPool(p); |
352 |
|
} |
356 |
|
* Pool maintains parallelism when using ManagedBlocker |
357 |
|
*/ |
358 |
|
public void testBlockingForkJoinTask() throws Throwable { |
359 |
< |
ForkJoinPool p = null; |
359 |
> |
ForkJoinPool p = new ForkJoinPool(4); |
360 |
|
try { |
410 |
– |
p = new ForkJoinPool(4); |
361 |
|
ReentrantLock lock = new ReentrantLock(); |
362 |
|
ManagedLocker locker = new ManagedLocker(lock); |
363 |
< |
ForkJoinTask<Integer> f = new LockingFibTask(30, locker, lock); |
363 |
> |
ForkJoinTask<Integer> f = new LockingFibTask(20, locker, lock); |
364 |
|
p.execute(f); |
365 |
< |
assertTrue(p.getPoolSize() >= 4); |
416 |
< |
int r = f.get(); |
417 |
< |
assertTrue(r == 832040); |
365 |
> |
assertEquals(6765, (int) f.get()); |
366 |
|
} finally { |
367 |
|
p.shutdownNow(); // don't wait out shutdown |
368 |
|
} |
372 |
|
* pollSubmission returns unexecuted submitted task, if present |
373 |
|
*/ |
374 |
|
public void testPollSubmission() { |
375 |
< |
SubFJP p = null; |
375 |
> |
final CountDownLatch done = new CountDownLatch(1); |
376 |
> |
SubFJP p = new SubFJP(); |
377 |
|
try { |
378 |
< |
p = new SubFJP(); |
379 |
< |
ForkJoinTask a = p.submit(new MediumRunnable()); |
380 |
< |
ForkJoinTask b = p.submit(new MediumRunnable()); |
432 |
< |
ForkJoinTask c = p.submit(new MediumRunnable()); |
378 |
> |
ForkJoinTask a = p.submit(awaiter(done)); |
379 |
> |
ForkJoinTask b = p.submit(awaiter(done)); |
380 |
> |
ForkJoinTask c = p.submit(awaiter(done)); |
381 |
|
ForkJoinTask r = p.pollSubmission(); |
382 |
|
assertTrue(r == a || r == b || r == c); |
383 |
|
assertFalse(r.isDone()); |
384 |
|
} finally { |
385 |
+ |
done.countDown(); |
386 |
|
joinPool(p); |
387 |
|
} |
388 |
|
} |
391 |
|
* drainTasksTo transfers unexecuted submitted tasks, if present |
392 |
|
*/ |
393 |
|
public void testDrainTasksTo() { |
394 |
< |
SubFJP p = null; |
394 |
> |
final CountDownLatch done = new CountDownLatch(1); |
395 |
> |
SubFJP p = new SubFJP(); |
396 |
|
try { |
397 |
< |
p = new SubFJP(); |
398 |
< |
ForkJoinTask a = p.submit(new MediumRunnable()); |
399 |
< |
ForkJoinTask b = p.submit(new MediumRunnable()); |
450 |
< |
ForkJoinTask c = p.submit(new MediumRunnable()); |
397 |
> |
ForkJoinTask a = p.submit(awaiter(done)); |
398 |
> |
ForkJoinTask b = p.submit(awaiter(done)); |
399 |
> |
ForkJoinTask c = p.submit(awaiter(done)); |
400 |
|
ArrayList<ForkJoinTask> al = new ArrayList(); |
401 |
|
p.drainTasksTo(al); |
402 |
|
assertTrue(al.size() > 0); |
405 |
|
assertFalse(r.isDone()); |
406 |
|
} |
407 |
|
} finally { |
408 |
+ |
done.countDown(); |
409 |
|
joinPool(p); |
410 |
|
} |
411 |
|
} |
412 |
|
|
463 |
– |
|
413 |
|
// FJ Versions of AbstractExecutorService tests |
414 |
|
|
415 |
|
/** |
417 |
|
*/ |
418 |
|
public void testExecuteRunnable() throws Throwable { |
419 |
|
ExecutorService e = new ForkJoinPool(1); |
420 |
< |
TrackedShortRunnable task = new TrackedShortRunnable(); |
421 |
< |
assertFalse(task.done); |
422 |
< |
Future<?> future = e.submit(task); |
423 |
< |
future.get(); |
424 |
< |
assertTrue(task.done); |
420 |
> |
try { |
421 |
> |
final AtomicBoolean done = new AtomicBoolean(false); |
422 |
> |
Future<?> future = e.submit(new CheckedRunnable() { |
423 |
> |
public void realRun() { |
424 |
> |
done.set(true); |
425 |
> |
}}); |
426 |
> |
assertNull(future.get()); |
427 |
> |
assertNull(future.get(0, MILLISECONDS)); |
428 |
> |
assertTrue(done.get()); |
429 |
> |
assertTrue(future.isDone()); |
430 |
> |
assertFalse(future.isCancelled()); |
431 |
> |
} finally { |
432 |
> |
joinPool(e); |
433 |
> |
} |
434 |
|
} |
435 |
|
|
478 |
– |
|
436 |
|
/** |
437 |
|
* Completed submit(callable) returns result |
438 |
|
*/ |
439 |
|
public void testSubmitCallable() throws Throwable { |
440 |
|
ExecutorService e = new ForkJoinPool(1); |
441 |
< |
Future<String> future = e.submit(new StringTask()); |
442 |
< |
String result = future.get(); |
443 |
< |
assertSame(TEST_STRING, result); |
441 |
> |
try { |
442 |
> |
Future<String> future = e.submit(new StringTask()); |
443 |
> |
assertSame(TEST_STRING, future.get()); |
444 |
> |
assertTrue(future.isDone()); |
445 |
> |
assertFalse(future.isCancelled()); |
446 |
> |
} finally { |
447 |
> |
joinPool(e); |
448 |
> |
} |
449 |
|
} |
450 |
|
|
451 |
|
/** |
453 |
|
*/ |
454 |
|
public void testSubmitRunnable() throws Throwable { |
455 |
|
ExecutorService e = new ForkJoinPool(1); |
456 |
< |
Future<?> future = e.submit(new NoOpRunnable()); |
457 |
< |
future.get(); |
458 |
< |
assertTrue(future.isDone()); |
456 |
> |
try { |
457 |
> |
Future<?> future = e.submit(new NoOpRunnable()); |
458 |
> |
assertNull(future.get()); |
459 |
> |
assertTrue(future.isDone()); |
460 |
> |
assertFalse(future.isCancelled()); |
461 |
> |
} finally { |
462 |
> |
joinPool(e); |
463 |
> |
} |
464 |
|
} |
465 |
|
|
466 |
|
/** |
468 |
|
*/ |
469 |
|
public void testSubmitRunnable2() throws Throwable { |
470 |
|
ExecutorService e = new ForkJoinPool(1); |
471 |
< |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
472 |
< |
String result = future.get(); |
473 |
< |
assertSame(TEST_STRING, result); |
471 |
> |
try { |
472 |
> |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
473 |
> |
assertSame(TEST_STRING, future.get()); |
474 |
> |
assertTrue(future.isDone()); |
475 |
> |
assertFalse(future.isCancelled()); |
476 |
> |
} finally { |
477 |
> |
joinPool(e); |
478 |
> |
} |
479 |
|
} |
480 |
|
|
509 |
– |
|
481 |
|
/** |
482 |
< |
* A submitted privileged action to completion |
482 |
> |
* A submitted privileged action runs to completion |
483 |
|
*/ |
484 |
< |
public void testSubmitPrivilegedAction() throws Throwable { |
485 |
< |
Policy savedPolicy = null; |
486 |
< |
try { |
487 |
< |
savedPolicy = Policy.getPolicy(); |
488 |
< |
AdjustablePolicy policy = new AdjustablePolicy(); |
518 |
< |
policy.addPermission(new RuntimePermission("getContextClassLoader")); |
519 |
< |
policy.addPermission(new RuntimePermission("setContextClassLoader")); |
520 |
< |
Policy.setPolicy(policy); |
521 |
< |
} catch (AccessControlException ok) { |
522 |
< |
return; |
523 |
< |
} |
524 |
< |
try { |
484 |
> |
public void testSubmitPrivilegedAction() throws Exception { |
485 |
> |
final Callable callable = Executors.callable(new PrivilegedAction() { |
486 |
> |
public Object run() { return TEST_STRING; }}); |
487 |
> |
Runnable r = new CheckedRunnable() { |
488 |
> |
public void realRun() throws Exception { |
489 |
|
ExecutorService e = new ForkJoinPool(1); |
490 |
< |
Future future = e.submit(Executors.callable(new PrivilegedAction() { |
491 |
< |
public Object run() { |
492 |
< |
return TEST_STRING; |
493 |
< |
}})); |
490 |
> |
try { |
491 |
> |
Future future = e.submit(callable); |
492 |
> |
assertSame(TEST_STRING, future.get()); |
493 |
> |
} finally { |
494 |
> |
joinPool(e); |
495 |
> |
} |
496 |
> |
}}; |
497 |
|
|
498 |
< |
Object result = future.get(); |
532 |
< |
assertSame(TEST_STRING, result); |
533 |
< |
} |
534 |
< |
finally { |
535 |
< |
Policy.setPolicy(savedPolicy); |
536 |
< |
} |
498 |
> |
runWithPermissions(r, new RuntimePermission("modifyThread")); |
499 |
|
} |
500 |
|
|
501 |
|
/** |
502 |
< |
* A submitted a privileged exception action runs to completion |
502 |
> |
* A submitted privileged exception action runs to completion |
503 |
|
*/ |
504 |
< |
public void testSubmitPrivilegedExceptionAction() throws Throwable { |
505 |
< |
Policy savedPolicy = null; |
506 |
< |
try { |
507 |
< |
savedPolicy = Policy.getPolicy(); |
508 |
< |
AdjustablePolicy policy = new AdjustablePolicy(); |
509 |
< |
policy.addPermission(new RuntimePermission("getContextClassLoader")); |
548 |
< |
policy.addPermission(new RuntimePermission("setContextClassLoader")); |
549 |
< |
Policy.setPolicy(policy); |
550 |
< |
} catch (AccessControlException ok) { |
551 |
< |
return; |
552 |
< |
} |
553 |
< |
|
554 |
< |
try { |
504 |
> |
public void testSubmitPrivilegedExceptionAction() throws Exception { |
505 |
> |
final Callable callable = |
506 |
> |
Executors.callable(new PrivilegedExceptionAction() { |
507 |
> |
public Object run() { return TEST_STRING; }}); |
508 |
> |
Runnable r = new CheckedRunnable() { |
509 |
> |
public void realRun() throws Exception { |
510 |
|
ExecutorService e = new ForkJoinPool(1); |
511 |
< |
Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() { |
512 |
< |
public Object run() { |
513 |
< |
return TEST_STRING; |
514 |
< |
}})); |
511 |
> |
try { |
512 |
> |
Future future = e.submit(callable); |
513 |
> |
assertSame(TEST_STRING, future.get()); |
514 |
> |
} finally { |
515 |
> |
joinPool(e); |
516 |
> |
} |
517 |
> |
}}; |
518 |
|
|
519 |
< |
Object result = future.get(); |
562 |
< |
assertSame(TEST_STRING, result); |
563 |
< |
} |
564 |
< |
finally { |
565 |
< |
Policy.setPolicy(savedPolicy); |
566 |
< |
} |
519 |
> |
runWithPermissions(r, new RuntimePermission("modifyThread")); |
520 |
|
} |
521 |
|
|
522 |
|
/** |
523 |
|
* A submitted failed privileged exception action reports exception |
524 |
|
*/ |
525 |
< |
public void testSubmitFailedPrivilegedExceptionAction() throws Throwable { |
526 |
< |
Policy savedPolicy = null; |
527 |
< |
try { |
528 |
< |
savedPolicy = Policy.getPolicy(); |
529 |
< |
AdjustablePolicy policy = new AdjustablePolicy(); |
530 |
< |
policy.addPermission(new RuntimePermission("getContextClassLoader")); |
578 |
< |
policy.addPermission(new RuntimePermission("setContextClassLoader")); |
579 |
< |
Policy.setPolicy(policy); |
580 |
< |
} catch (AccessControlException ok) { |
581 |
< |
return; |
582 |
< |
} |
583 |
< |
|
584 |
< |
|
585 |
< |
try { |
525 |
> |
public void testSubmitFailedPrivilegedExceptionAction() throws Exception { |
526 |
> |
final Callable callable = |
527 |
> |
Executors.callable(new PrivilegedExceptionAction() { |
528 |
> |
public Object run() { throw new IndexOutOfBoundsException(); }}); |
529 |
> |
Runnable r = new CheckedRunnable() { |
530 |
> |
public void realRun() throws Exception { |
531 |
|
ExecutorService e = new ForkJoinPool(1); |
532 |
< |
Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() { |
533 |
< |
public Object run() throws Exception { |
534 |
< |
throw new IndexOutOfBoundsException(); |
535 |
< |
}})); |
532 |
> |
try { |
533 |
> |
Future future = e.submit(callable); |
534 |
> |
try { |
535 |
> |
future.get(); |
536 |
> |
shouldThrow(); |
537 |
> |
} catch (ExecutionException success) { |
538 |
> |
assertTrue(success.getCause() instanceof IndexOutOfBoundsException); |
539 |
> |
} |
540 |
> |
} finally { |
541 |
> |
joinPool(e); |
542 |
> |
} |
543 |
> |
}}; |
544 |
|
|
545 |
< |
Object result = future.get(); |
593 |
< |
shouldThrow(); |
594 |
< |
} catch (ExecutionException success) { |
595 |
< |
} finally { |
596 |
< |
Policy.setPolicy(savedPolicy); |
597 |
< |
} |
545 |
> |
runWithPermissions(r, new RuntimePermission("modifyThread")); |
546 |
|
} |
547 |
|
|
548 |
|
/** |
549 |
|
* execute(null runnable) throws NullPointerException |
550 |
|
*/ |
551 |
|
public void testExecuteNullRunnable() { |
552 |
+ |
ExecutorService e = new ForkJoinPool(1); |
553 |
|
try { |
554 |
< |
ExecutorService e = new ForkJoinPool(1); |
606 |
< |
TrackedShortRunnable task = null; |
607 |
< |
Future<?> future = e.submit(task); |
554 |
> |
Future<?> future = e.submit((Runnable) null); |
555 |
|
shouldThrow(); |
556 |
|
} catch (NullPointerException success) { |
557 |
+ |
} finally { |
558 |
+ |
joinPool(e); |
559 |
|
} |
560 |
|
} |
561 |
|
|
613 |
– |
|
562 |
|
/** |
563 |
|
* submit(null callable) throws NullPointerException |
564 |
|
*/ |
565 |
|
public void testSubmitNullCallable() { |
566 |
+ |
ExecutorService e = new ForkJoinPool(1); |
567 |
|
try { |
568 |
< |
ExecutorService e = new ForkJoinPool(1); |
620 |
< |
StringTask t = null; |
621 |
< |
Future<String> future = e.submit(t); |
568 |
> |
Future<String> future = e.submit((Callable) null); |
569 |
|
shouldThrow(); |
570 |
|
} catch (NullPointerException success) { |
571 |
+ |
} finally { |
572 |
+ |
joinPool(e); |
573 |
|
} |
574 |
|
} |
575 |
|
|
627 |
– |
|
576 |
|
/** |
577 |
< |
* Blocking on submit(callable) throws InterruptedException if |
630 |
< |
* caller interrupted. |
577 |
> |
* submit(callable).get() throws InterruptedException if interrupted |
578 |
|
*/ |
579 |
|
public void testInterruptedSubmit() throws InterruptedException { |
580 |
< |
final ForkJoinPool p = new ForkJoinPool(1); |
581 |
< |
|
582 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
583 |
< |
void realRun() throws Throwable { |
584 |
< |
p.submit(new CheckedCallable<Object>() { |
585 |
< |
public Object realCall() throws Throwable { |
586 |
< |
try { |
587 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
588 |
< |
} catch (InterruptedException ok) { |
589 |
< |
} |
590 |
< |
return null; |
591 |
< |
}}).get(); |
592 |
< |
}}); |
593 |
< |
|
594 |
< |
t.start(); |
595 |
< |
Thread.sleep(SHORT_DELAY_MS); |
596 |
< |
t.interrupt(); |
597 |
< |
t.join(); |
598 |
< |
p.shutdownNow(); |
599 |
< |
joinPool(p); |
580 |
> |
final CountDownLatch submitted = new CountDownLatch(1); |
581 |
> |
final CountDownLatch quittingTime = new CountDownLatch(1); |
582 |
> |
final ExecutorService p = new ForkJoinPool(1); |
583 |
> |
final Callable<Void> awaiter = new CheckedCallable<Void>() { |
584 |
> |
public Void realCall() throws InterruptedException { |
585 |
> |
assertTrue(quittingTime.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
586 |
> |
return null; |
587 |
> |
}}; |
588 |
> |
try { |
589 |
> |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
590 |
> |
public void realRun() throws Exception { |
591 |
> |
Future<Void> future = p.submit(awaiter); |
592 |
> |
submitted.countDown(); |
593 |
> |
future.get(); |
594 |
> |
}}); |
595 |
> |
t.start(); |
596 |
> |
assertTrue(submitted.await(MEDIUM_DELAY_MS, MILLISECONDS)); |
597 |
> |
t.interrupt(); |
598 |
> |
t.join(); |
599 |
> |
} finally { |
600 |
> |
quittingTime.countDown(); |
601 |
> |
joinPool(p); |
602 |
> |
} |
603 |
|
} |
604 |
|
|
605 |
|
/** |
610 |
|
ForkJoinPool p = new ForkJoinPool(1); |
611 |
|
try { |
612 |
|
p.submit(new Callable() { |
613 |
< |
public Object call() { |
614 |
< |
int i = 5/0; |
665 |
< |
return Boolean.TRUE; |
666 |
< |
}}).get(); |
613 |
> |
public Object call() { throw new ArithmeticException(); }}) |
614 |
> |
.get(); |
615 |
|
shouldThrow(); |
616 |
|
} catch (ExecutionException success) { |
617 |
+ |
assertTrue(success.getCause() instanceof ArithmeticException); |
618 |
+ |
} finally { |
619 |
+ |
joinPool(p); |
620 |
|
} |
670 |
– |
joinPool(p); |
621 |
|
} |
622 |
|
|
623 |
|
/** |
653 |
|
*/ |
654 |
|
public void testInvokeAny3() throws Throwable { |
655 |
|
ExecutorService e = new ForkJoinPool(1); |
656 |
+ |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
657 |
+ |
l.add(null); |
658 |
|
try { |
707 |
– |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
708 |
– |
l.add(null); |
659 |
|
e.invokeAny(l); |
660 |
|
shouldThrow(); |
661 |
|
} catch (NullPointerException success) { |
668 |
|
* invokeAny(c) throws NullPointerException if c has null elements |
669 |
|
*/ |
670 |
|
public void testInvokeAny4() throws Throwable { |
671 |
+ |
CountDownLatch latch = new CountDownLatch(1); |
672 |
|
ExecutorService e = new ForkJoinPool(1); |
673 |
+ |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
674 |
+ |
l.add(latchAwaitingStringTask(latch)); |
675 |
+ |
l.add(null); |
676 |
|
try { |
723 |
– |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
724 |
– |
l.add(new Callable<String>() { |
725 |
– |
public String call() { |
726 |
– |
// The delay gives the pool a chance to notice |
727 |
– |
// the null element. |
728 |
– |
sleepTillInterrupted(SMALL_DELAY_MS); |
729 |
– |
return "foo"; |
730 |
– |
}}); |
731 |
– |
l.add(null); |
677 |
|
e.invokeAny(l); |
678 |
|
shouldThrow(); |
679 |
|
} catch (NullPointerException success) { |
680 |
|
} finally { |
681 |
+ |
latch.countDown(); |
682 |
|
joinPool(e); |
683 |
|
} |
684 |
|
} |
688 |
|
*/ |
689 |
|
public void testInvokeAny5() throws Throwable { |
690 |
|
ExecutorService e = new ForkJoinPool(1); |
691 |
+ |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
692 |
+ |
l.add(new NPETask()); |
693 |
|
try { |
746 |
– |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
747 |
– |
l.add(new NPETask()); |
694 |
|
e.invokeAny(l); |
695 |
|
shouldThrow(); |
696 |
|
} catch (ExecutionException success) { |
697 |
+ |
assertTrue(success.getCause() instanceof NullPointerException); |
698 |
|
} finally { |
699 |
|
joinPool(e); |
700 |
|
} |
706 |
|
public void testInvokeAny6() throws Throwable { |
707 |
|
ExecutorService e = new ForkJoinPool(1); |
708 |
|
try { |
709 |
< |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
709 |
> |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
710 |
|
l.add(new StringTask()); |
711 |
|
l.add(new StringTask()); |
712 |
|
String result = e.invokeAny(l); |
749 |
|
*/ |
750 |
|
public void testInvokeAll3() throws InterruptedException { |
751 |
|
ExecutorService e = new ForkJoinPool(1); |
752 |
+ |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
753 |
+ |
l.add(new StringTask()); |
754 |
+ |
l.add(null); |
755 |
|
try { |
806 |
– |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
807 |
– |
l.add(new StringTask()); |
808 |
– |
l.add(null); |
756 |
|
e.invokeAll(l); |
757 |
|
shouldThrow(); |
758 |
|
} catch (NullPointerException success) { |
767 |
|
*/ |
768 |
|
public void testInvokeAll4() throws Throwable { |
769 |
|
ExecutorService e = new ForkJoinPool(1); |
770 |
+ |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
771 |
+ |
l.add(new NPETask()); |
772 |
+ |
List<Future<String>> futures = e.invokeAll(l); |
773 |
+ |
assertEquals(1, futures.size()); |
774 |
|
try { |
775 |
< |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
825 |
< |
l.add(new NPETask()); |
826 |
< |
List<Future<String>> result = e.invokeAll(l); |
827 |
< |
assertEquals(1, result.size()); |
828 |
< |
for (Future<String> future : result) |
829 |
< |
future.get(); |
775 |
> |
futures.get(0).get(); |
776 |
|
shouldThrow(); |
777 |
|
} catch (ExecutionException success) { |
778 |
+ |
assertTrue(success.getCause() instanceof NullPointerException); |
779 |
|
} finally { |
780 |
|
joinPool(e); |
781 |
|
} |
787 |
|
public void testInvokeAll5() throws Throwable { |
788 |
|
ExecutorService e = new ForkJoinPool(1); |
789 |
|
try { |
790 |
< |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
790 |
> |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
791 |
|
l.add(new StringTask()); |
792 |
|
l.add(new StringTask()); |
793 |
< |
List<Future<String>> result = e.invokeAll(l); |
794 |
< |
assertEquals(2, result.size()); |
795 |
< |
for (Future<String> future : result) |
793 |
> |
List<Future<String>> futures = e.invokeAll(l); |
794 |
> |
assertEquals(2, futures.size()); |
795 |
> |
for (Future<String> future : futures) |
796 |
|
assertSame(TEST_STRING, future.get()); |
797 |
|
} finally { |
798 |
|
joinPool(e); |
799 |
|
} |
800 |
|
} |
801 |
|
|
855 |
– |
|
802 |
|
/** |
803 |
|
* timed invokeAny(null) throws NullPointerException |
804 |
|
*/ |
818 |
|
*/ |
819 |
|
public void testTimedInvokeAnyNullTimeUnit() throws Throwable { |
820 |
|
ExecutorService e = new ForkJoinPool(1); |
821 |
+ |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
822 |
+ |
l.add(new StringTask()); |
823 |
|
try { |
876 |
– |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
877 |
– |
l.add(new StringTask()); |
824 |
|
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
825 |
|
shouldThrow(); |
826 |
|
} catch (NullPointerException success) { |
848 |
|
* timed invokeAny(c) throws NullPointerException if c has null elements |
849 |
|
*/ |
850 |
|
public void testTimedInvokeAny3() throws Throwable { |
851 |
+ |
CountDownLatch latch = new CountDownLatch(1); |
852 |
|
ExecutorService e = new ForkJoinPool(1); |
853 |
+ |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
854 |
+ |
l.add(latchAwaitingStringTask(latch)); |
855 |
+ |
l.add(null); |
856 |
|
try { |
907 |
– |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
908 |
– |
l.add(new StringTask()); |
909 |
– |
l.add(null); |
857 |
|
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
858 |
|
shouldThrow(); |
859 |
|
} catch (NullPointerException success) { |
860 |
|
} finally { |
861 |
+ |
latch.countDown(); |
862 |
|
joinPool(e); |
863 |
|
} |
864 |
|
} |
868 |
|
*/ |
869 |
|
public void testTimedInvokeAny4() throws Throwable { |
870 |
|
ExecutorService e = new ForkJoinPool(1); |
871 |
+ |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
872 |
+ |
l.add(new NPETask()); |
873 |
|
try { |
924 |
– |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
925 |
– |
l.add(new NPETask()); |
874 |
|
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
875 |
|
shouldThrow(); |
876 |
|
} catch (ExecutionException success) { |
877 |
+ |
assertTrue(success.getCause() instanceof NullPointerException); |
878 |
|
} finally { |
879 |
|
joinPool(e); |
880 |
|
} |
886 |
|
public void testTimedInvokeAny5() throws Throwable { |
887 |
|
ExecutorService e = new ForkJoinPool(1); |
888 |
|
try { |
889 |
< |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
889 |
> |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
890 |
|
l.add(new StringTask()); |
891 |
|
l.add(new StringTask()); |
892 |
|
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
915 |
|
*/ |
916 |
|
public void testTimedInvokeAllNullTimeUnit() throws Throwable { |
917 |
|
ExecutorService e = new ForkJoinPool(1); |
918 |
+ |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
919 |
+ |
l.add(new StringTask()); |
920 |
|
try { |
970 |
– |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
971 |
– |
l.add(new StringTask()); |
921 |
|
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
922 |
|
shouldThrow(); |
923 |
|
} catch (NullPointerException success) { |
946 |
|
*/ |
947 |
|
public void testTimedInvokeAll3() throws InterruptedException { |
948 |
|
ExecutorService e = new ForkJoinPool(1); |
949 |
+ |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
950 |
+ |
l.add(new StringTask()); |
951 |
+ |
l.add(null); |
952 |
|
try { |
1001 |
– |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
1002 |
– |
l.add(new StringTask()); |
1003 |
– |
l.add(null); |
953 |
|
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
954 |
|
shouldThrow(); |
955 |
|
} catch (NullPointerException success) { |
963 |
|
*/ |
964 |
|
public void testTimedInvokeAll4() throws Throwable { |
965 |
|
ExecutorService e = new ForkJoinPool(1); |
966 |
+ |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
967 |
+ |
l.add(new NPETask()); |
968 |
+ |
List<Future<String>> futures |
969 |
+ |
= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
970 |
+ |
assertEquals(1, futures.size()); |
971 |
|
try { |
972 |
< |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
1019 |
< |
l.add(new NPETask()); |
1020 |
< |
List<Future<String>> result |
1021 |
< |
= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1022 |
< |
assertEquals(1, result.size()); |
1023 |
< |
for (Future<String> future : result) |
1024 |
< |
future.get(); |
972 |
> |
futures.get(0).get(); |
973 |
|
shouldThrow(); |
974 |
|
} catch (ExecutionException success) { |
975 |
+ |
assertTrue(success.getCause() instanceof NullPointerException); |
976 |
|
} finally { |
977 |
|
joinPool(e); |
978 |
|
} |
984 |
|
public void testTimedInvokeAll5() throws Throwable { |
985 |
|
ExecutorService e = new ForkJoinPool(1); |
986 |
|
try { |
987 |
< |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
987 |
> |
List<Callable<String>> l = new ArrayList<Callable<String>>(); |
988 |
|
l.add(new StringTask()); |
989 |
|
l.add(new StringTask()); |
990 |
< |
List<Future<String>> result |
990 |
> |
List<Future<String>> futures |
991 |
|
= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
992 |
< |
assertEquals(2, result.size()); |
993 |
< |
for (Future<String> future : result) |
992 |
> |
assertEquals(2, futures.size()); |
993 |
> |
for (Future<String> future : futures) |
994 |
|
assertSame(TEST_STRING, future.get()); |
995 |
|
} finally { |
996 |
|
joinPool(e); |