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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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*/ |
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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 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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|
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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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} |
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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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* |
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* 2. newTaskFor and adapters are tested in submit/invoke tests |
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* |
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* 3. We cannot portably test monitoring methods such as |
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* getStealCount() since they rely ultimately on random task |
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* stealing that may cause tasks not to be stolen/propagated |
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* across threads, especially on uniprocessors. |
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* |
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* 4. There are no independently testable ForkJoinWorkerThread |
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* methods, but they are covered here and in task tests. |
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*/ |
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|
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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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public void uncaughtException(Thread t, Throwable e) { |
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++catches; |
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} |
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} |
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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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} |
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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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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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} |
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} |
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|
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static class SubFJP extends ForkJoinPool { // to expose protected |
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SubFJP() { super(1); } |
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public int drainTasksTo(Collection<? super ForkJoinTask<?>> c) { |
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return super.drainTasksTo(c); |
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} |
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public ForkJoinTask<?> pollSubmission() { |
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return super.pollSubmission(); |
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} |
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} |
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|
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static class ManagedLocker implements ForkJoinPool.ManagedBlocker { |
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final ReentrantLock lock; |
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boolean hasLock = false; |
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ManagedLocker(ReentrantLock lock) { this.lock = lock; } |
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public boolean block() { |
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if (!hasLock) |
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lock.lock(); |
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return true; |
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} |
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public boolean isReleasable() { |
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return hasLock || (hasLock = lock.tryLock()); |
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} |
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} |
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|
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// A simple recursive task for testing |
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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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int n = number; |
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if (n <= 1) |
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return n; |
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FibTask f1 = new FibTask(n - 1); |
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f1.fork(); |
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return (new FibTask(n - 2)).compute() + f1.join(); |
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} |
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} |
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|
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// A failing task for testing |
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static final class FailingTask extends ForkJoinTask<Void> { |
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public final Void getRawResult() { return null; } |
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protected final void setRawResult(Void mustBeNull) { } |
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protected final boolean exec() { throw new Error(); } |
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FailingTask() {} |
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} |
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|
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// Fib needlessly using locking to test ManagedBlockers |
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static final class LockingFibTask extends RecursiveTask<Integer> { |
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final int number; |
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final ManagedLocker locker; |
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final ReentrantLock lock; |
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LockingFibTask(int n, ManagedLocker locker, ReentrantLock lock) { |
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number = 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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int n; |
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LockingFibTask f1 = null; |
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LockingFibTask f2 = null; |
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locker.block(); |
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n = number; |
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if (n > 1) { |
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f1 = new LockingFibTask(n - 1, locker, lock); |
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f2 = new LockingFibTask(n - 2, locker, lock); |
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} |
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lock.unlock(); |
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if (n <= 1) |
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return n; |
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else { |
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f1.fork(); |
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return f2.compute() + f1.join(); |
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} |
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} |
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} |
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|
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/** |
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* Successfully constructed pool reports default factory, |
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* parallelism and async mode policies, no active threads or |
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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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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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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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assertFalse(p.hasQueuedSubmissions()); |
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assertFalse(p.isShutdown()); |
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assertFalse(p.isTerminating()); |
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assertFalse(p.isTerminated()); |
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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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* Constructor throws if size argument is less than zero |
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*/ |
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public void testConstructor1() { |
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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) {} |
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} |
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|
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/** |
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* Constructor throws if factory argument is null |
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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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shouldThrow(); |
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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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/** |
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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; |
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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. |
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*/ |
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public void testSetParallelism() { |
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ForkJoinPool p = null; |
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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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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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|
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/** |
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* setParallelism with argument <= 0 throws exception |
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*/ |
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public void testSetParallelism2() { |
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ForkJoinPool p = null; |
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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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p.setParallelism(-2); |
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shouldThrow(); |
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} catch (IllegalArgumentException success) { |
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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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* getPoolSize returns number of started workers. |
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*/ |
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public void testGetPoolSize() { |
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ForkJoinPool p = null; |
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try { |
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p = new ForkJoinPool(1); |
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assertTrue(p.getPoolSize() == 0); |
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Future<String> future = p.submit(new StringTask()); |
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assertTrue(p.getPoolSize() == 1); |
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|
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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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* setMaximumPoolSize changes size reported by getMaximumPoolSize. |
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*/ |
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public void testSetMaximumPoolSize() { |
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ForkJoinPool p = null; |
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try { |
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p = new ForkJoinPool(1); |
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p.setMaximumPoolSize(2); |
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assertTrue(p.getMaximumPoolSize() == 2); |
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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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* setMaximumPoolSize with argument <= 0 throws exception |
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*/ |
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public void testSetMaximumPoolSize2() { |
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ForkJoinPool p = null; |
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try { |
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p = new ForkJoinPool(1); |
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p.setMaximumPoolSize(-2); |
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shouldThrow(); |
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} catch (IllegalArgumentException success) { |
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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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* setMaintainsParallelism changes policy reported by |
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* getMaintainsParallelism. |
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*/ |
282 |
public void testSetMaintainsParallelism() { |
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ForkJoinPool p = null; |
284 |
try { |
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p = new ForkJoinPool(1); |
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p.setMaintainsParallelism(false); |
287 |
assertFalse(p.getMaintainsParallelism()); |
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} finally { |
289 |
joinPool(p); |
290 |
} |
291 |
} |
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|
293 |
/** |
294 |
* setAsyncMode changes policy reported by |
295 |
* getAsyncMode. |
296 |
*/ |
297 |
public void testSetAsyncMode() { |
298 |
ForkJoinPool p = null; |
299 |
try { |
300 |
p = new ForkJoinPool(1); |
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p.setAsyncMode(true); |
302 |
assertTrue(p.getAsyncMode()); |
303 |
} finally { |
304 |
joinPool(p); |
305 |
} |
306 |
} |
307 |
|
308 |
/** |
309 |
* setUncaughtExceptionHandler changes handler for uncaught exceptions. |
310 |
* |
311 |
* Additionally tests: Overriding ForkJoinWorkerThread.onStart |
312 |
* performs its defined action |
313 |
*/ |
314 |
public void testSetUncaughtExceptionHandler() throws InterruptedException { |
315 |
ForkJoinPool p = null; |
316 |
try { |
317 |
p = new ForkJoinPool(1, new FailingThreadFactory()); |
318 |
MyHandler eh = new MyHandler(); |
319 |
p.setUncaughtExceptionHandler(eh); |
320 |
assertEquals(eh, p.getUncaughtExceptionHandler()); |
321 |
p.execute(new FailingTask()); |
322 |
Thread.sleep(MEDIUM_DELAY_MS); |
323 |
assertTrue(eh.catches > 0); |
324 |
} finally { |
325 |
joinPool(p); |
326 |
} |
327 |
} |
328 |
|
329 |
/** |
330 |
* setUncaughtExceptionHandler of null removes handler |
331 |
*/ |
332 |
public void testSetUncaughtExceptionHandler2() { |
333 |
ForkJoinPool p = null; |
334 |
try { |
335 |
p = new ForkJoinPool(1); |
336 |
p.setUncaughtExceptionHandler(null); |
337 |
assertNull(p.getUncaughtExceptionHandler()); |
338 |
} finally { |
339 |
joinPool(p); |
340 |
} |
341 |
} |
342 |
|
343 |
|
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); |
357 |
assertTrue(p.isQuiescent()); |
358 |
assertTrue(p.getMaintainsParallelism()); |
359 |
assertFalse(p.getAsyncMode()); |
360 |
assertTrue(p.getActiveThreadCount() == 0); |
361 |
assertTrue(p.getQueuedTaskCount() == 0); |
362 |
assertTrue(p.getQueuedSubmissionCount() == 0); |
363 |
assertFalse(p.hasQueuedSubmissions()); |
364 |
assertFalse(p.isShutdown()); |
365 |
assertFalse(p.isTerminating()); |
366 |
assertFalse(p.isTerminated()); |
367 |
} finally { |
368 |
joinPool(p); |
369 |
} |
370 |
} |
371 |
|
372 |
/** |
373 |
* Completed submit(ForkJoinTask) returns result |
374 |
*/ |
375 |
public void testSubmitForkJoinTask() throws Throwable { |
376 |
ForkJoinPool p = null; |
377 |
try { |
378 |
p = new ForkJoinPool(1); |
379 |
ForkJoinTask<Integer> f = p.submit(new FibTask(8)); |
380 |
int r = f.get(); |
381 |
assertTrue(r == 21); |
382 |
} finally { |
383 |
joinPool(p); |
384 |
} |
385 |
} |
386 |
|
387 |
/** |
388 |
* A task submitted after shutdown is rejected |
389 |
*/ |
390 |
public void testSubmitAfterShutdown() { |
391 |
ForkJoinPool p = null; |
392 |
try { |
393 |
p = new ForkJoinPool(1); |
394 |
p.shutdown(); |
395 |
assertTrue(p.isShutdown()); |
396 |
ForkJoinTask<Integer> f = p.submit(new FibTask(8)); |
397 |
shouldThrow(); |
398 |
} catch (RejectedExecutionException success) { |
399 |
} finally { |
400 |
joinPool(p); |
401 |
} |
402 |
} |
403 |
|
404 |
/** |
405 |
* Pool maintains parallelism when using ManagedBlocker |
406 |
*/ |
407 |
public void testBlockingForkJoinTask() throws Throwable { |
408 |
ForkJoinPool p = null; |
409 |
try { |
410 |
p = new ForkJoinPool(4); |
411 |
ReentrantLock lock = new ReentrantLock(); |
412 |
ManagedLocker locker = new ManagedLocker(lock); |
413 |
ForkJoinTask<Integer> f = new LockingFibTask(30, locker, lock); |
414 |
p.execute(f); |
415 |
assertTrue(p.getPoolSize() >= 4); |
416 |
int r = f.get(); |
417 |
assertTrue(r == 832040); |
418 |
} finally { |
419 |
p.shutdownNow(); // don't wait out shutdown |
420 |
} |
421 |
} |
422 |
|
423 |
/** |
424 |
* pollSubmission returns unexecuted submitted task, if present |
425 |
*/ |
426 |
public void testPollSubmission() { |
427 |
SubFJP p = null; |
428 |
try { |
429 |
p = new SubFJP(); |
430 |
ForkJoinTask a = p.submit(new MediumRunnable()); |
431 |
ForkJoinTask b = p.submit(new MediumRunnable()); |
432 |
ForkJoinTask c = p.submit(new MediumRunnable()); |
433 |
ForkJoinTask r = p.pollSubmission(); |
434 |
assertTrue(r == a || r == b || r == c); |
435 |
assertFalse(r.isDone()); |
436 |
} finally { |
437 |
joinPool(p); |
438 |
} |
439 |
} |
440 |
|
441 |
/** |
442 |
* drainTasksTo transfers unexecuted submitted tasks, if present |
443 |
*/ |
444 |
public void testDrainTasksTo() { |
445 |
SubFJP p = null; |
446 |
try { |
447 |
p = new SubFJP(); |
448 |
ForkJoinTask a = p.submit(new MediumRunnable()); |
449 |
ForkJoinTask b = p.submit(new MediumRunnable()); |
450 |
ForkJoinTask c = p.submit(new MediumRunnable()); |
451 |
ArrayList<ForkJoinTask> al = new ArrayList(); |
452 |
p.drainTasksTo(al); |
453 |
assertTrue(al.size() > 0); |
454 |
for (ForkJoinTask r : al) { |
455 |
assertTrue(r == a || r == b || r == c); |
456 |
assertFalse(r.isDone()); |
457 |
} |
458 |
} finally { |
459 |
joinPool(p); |
460 |
} |
461 |
} |
462 |
|
463 |
|
464 |
// FJ Versions of AbstractExecutorService tests |
465 |
|
466 |
/** |
467 |
* execute(runnable) runs it to completion |
468 |
*/ |
469 |
public void testExecuteRunnable() throws Throwable { |
470 |
ExecutorService e = new ForkJoinPool(1); |
471 |
TrackedShortRunnable task = new TrackedShortRunnable(); |
472 |
assertFalse(task.done); |
473 |
Future<?> future = e.submit(task); |
474 |
future.get(); |
475 |
assertTrue(task.done); |
476 |
} |
477 |
|
478 |
|
479 |
/** |
480 |
* Completed submit(callable) returns result |
481 |
*/ |
482 |
public void testSubmitCallable() throws Throwable { |
483 |
ExecutorService e = new ForkJoinPool(1); |
484 |
Future<String> future = e.submit(new StringTask()); |
485 |
String result = future.get(); |
486 |
assertSame(TEST_STRING, result); |
487 |
} |
488 |
|
489 |
/** |
490 |
* Completed submit(runnable) returns successfully |
491 |
*/ |
492 |
public void testSubmitRunnable() throws Throwable { |
493 |
ExecutorService e = new ForkJoinPool(1); |
494 |
Future<?> future = e.submit(new NoOpRunnable()); |
495 |
future.get(); |
496 |
assertTrue(future.isDone()); |
497 |
} |
498 |
|
499 |
/** |
500 |
* Completed submit(runnable, result) returns result |
501 |
*/ |
502 |
public void testSubmitRunnable2() throws Throwable { |
503 |
ExecutorService e = new ForkJoinPool(1); |
504 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
505 |
String result = future.get(); |
506 |
assertSame(TEST_STRING, result); |
507 |
} |
508 |
|
509 |
|
510 |
/** |
511 |
* A submitted privileged action to completion |
512 |
*/ |
513 |
public void testSubmitPrivilegedAction() throws Throwable { |
514 |
Policy savedPolicy = null; |
515 |
try { |
516 |
savedPolicy = Policy.getPolicy(); |
517 |
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 { |
525 |
ExecutorService e = new ForkJoinPool(1); |
526 |
Future future = e.submit(Executors.callable(new PrivilegedAction() { |
527 |
public Object run() { |
528 |
return TEST_STRING; |
529 |
}})); |
530 |
|
531 |
Object result = future.get(); |
532 |
assertSame(TEST_STRING, result); |
533 |
} |
534 |
finally { |
535 |
Policy.setPolicy(savedPolicy); |
536 |
} |
537 |
} |
538 |
|
539 |
/** |
540 |
* A submitted a privileged exception action runs to completion |
541 |
*/ |
542 |
public void testSubmitPrivilegedExceptionAction() throws Throwable { |
543 |
Policy savedPolicy = null; |
544 |
try { |
545 |
savedPolicy = Policy.getPolicy(); |
546 |
AdjustablePolicy policy = new AdjustablePolicy(); |
547 |
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 { |
555 |
ExecutorService e = new ForkJoinPool(1); |
556 |
Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() { |
557 |
public Object run() { |
558 |
return TEST_STRING; |
559 |
}})); |
560 |
|
561 |
Object result = future.get(); |
562 |
assertSame(TEST_STRING, result); |
563 |
} |
564 |
finally { |
565 |
Policy.setPolicy(savedPolicy); |
566 |
} |
567 |
} |
568 |
|
569 |
/** |
570 |
* A submitted failed privileged exception action reports exception |
571 |
*/ |
572 |
public void testSubmitFailedPrivilegedExceptionAction() throws Throwable { |
573 |
Policy savedPolicy = null; |
574 |
try { |
575 |
savedPolicy = Policy.getPolicy(); |
576 |
AdjustablePolicy policy = new AdjustablePolicy(); |
577 |
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 { |
586 |
ExecutorService e = new ForkJoinPool(1); |
587 |
Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() { |
588 |
public Object run() throws Exception { |
589 |
throw new IndexOutOfBoundsException(); |
590 |
}})); |
591 |
|
592 |
Object result = future.get(); |
593 |
shouldThrow(); |
594 |
} catch (ExecutionException success) { |
595 |
} finally { |
596 |
Policy.setPolicy(savedPolicy); |
597 |
} |
598 |
} |
599 |
|
600 |
/** |
601 |
* execute(null runnable) throws NullPointerException |
602 |
*/ |
603 |
public void testExecuteNullRunnable() { |
604 |
try { |
605 |
ExecutorService e = new ForkJoinPool(1); |
606 |
TrackedShortRunnable task = null; |
607 |
Future<?> future = e.submit(task); |
608 |
shouldThrow(); |
609 |
} catch (NullPointerException success) { |
610 |
} |
611 |
} |
612 |
|
613 |
|
614 |
/** |
615 |
* submit(null callable) throws NullPointerException |
616 |
*/ |
617 |
public void testSubmitNullCallable() { |
618 |
try { |
619 |
ExecutorService e = new ForkJoinPool(1); |
620 |
StringTask t = null; |
621 |
Future<String> future = e.submit(t); |
622 |
shouldThrow(); |
623 |
} catch (NullPointerException success) { |
624 |
} |
625 |
} |
626 |
|
627 |
|
628 |
/** |
629 |
* Blocking on submit(callable) throws InterruptedException if |
630 |
* caller interrupted. |
631 |
*/ |
632 |
public void testInterruptedSubmit() throws InterruptedException { |
633 |
final ForkJoinPool p = new ForkJoinPool(1); |
634 |
|
635 |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
636 |
void realRun() throws Throwable { |
637 |
p.submit(new CheckedCallable<Object>() { |
638 |
public Object realCall() throws Throwable { |
639 |
Thread.sleep(MEDIUM_DELAY_MS); |
640 |
return null; |
641 |
}}).get(); |
642 |
}}); |
643 |
|
644 |
t.start(); |
645 |
t.interrupt(); |
646 |
p.shutdownNow(); |
647 |
} |
648 |
|
649 |
/** |
650 |
* get of submit(callable) throws ExecutionException if callable |
651 |
* throws exception |
652 |
*/ |
653 |
public void testSubmitEE() throws Throwable { |
654 |
ForkJoinPool p = new ForkJoinPool(1); |
655 |
|
656 |
try { |
657 |
Callable c = new Callable() { |
658 |
public Object call() { |
659 |
int i = 5/0; |
660 |
return Boolean.TRUE; |
661 |
} |
662 |
}; |
663 |
|
664 |
for (int i = 0; i < 5; i++) { |
665 |
p.submit(c).get(); |
666 |
} |
667 |
shouldThrow(); |
668 |
} catch (ExecutionException success) { |
669 |
} |
670 |
joinPool(p); |
671 |
} |
672 |
|
673 |
/** |
674 |
* invokeAny(null) throws NullPointerException |
675 |
*/ |
676 |
public void testInvokeAny1() throws Throwable { |
677 |
ExecutorService e = new ForkJoinPool(1); |
678 |
try { |
679 |
e.invokeAny(null); |
680 |
shouldThrow(); |
681 |
} catch (NullPointerException success) { |
682 |
} finally { |
683 |
joinPool(e); |
684 |
} |
685 |
} |
686 |
|
687 |
/** |
688 |
* invokeAny(empty collection) throws IllegalArgumentException |
689 |
*/ |
690 |
public void testInvokeAny2() throws Throwable { |
691 |
ExecutorService e = new ForkJoinPool(1); |
692 |
try { |
693 |
e.invokeAny(new ArrayList<Callable<String>>()); |
694 |
shouldThrow(); |
695 |
} catch (IllegalArgumentException success) { |
696 |
} finally { |
697 |
joinPool(e); |
698 |
} |
699 |
} |
700 |
|
701 |
/** |
702 |
* invokeAny(c) throws NullPointerException if c has null elements |
703 |
*/ |
704 |
public void testInvokeAny3() throws Throwable { |
705 |
ExecutorService e = new ForkJoinPool(1); |
706 |
try { |
707 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
708 |
l.add(new StringTask()); |
709 |
l.add(null); |
710 |
e.invokeAny(l); |
711 |
shouldThrow(); |
712 |
} catch (NullPointerException success) { |
713 |
} finally { |
714 |
joinPool(e); |
715 |
} |
716 |
} |
717 |
|
718 |
/** |
719 |
* invokeAny(c) throws ExecutionException if no task in c completes |
720 |
*/ |
721 |
public void testInvokeAny4() throws Throwable { |
722 |
ExecutorService e = new ForkJoinPool(1); |
723 |
try { |
724 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
725 |
l.add(new NPETask()); |
726 |
e.invokeAny(l); |
727 |
shouldThrow(); |
728 |
} catch (ExecutionException success) { |
729 |
} finally { |
730 |
joinPool(e); |
731 |
} |
732 |
} |
733 |
|
734 |
/** |
735 |
* invokeAny(c) returns result of some task in c if at least one completes |
736 |
*/ |
737 |
public void testInvokeAny5() throws Throwable { |
738 |
ExecutorService e = new ForkJoinPool(1); |
739 |
try { |
740 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
741 |
l.add(new StringTask()); |
742 |
l.add(new StringTask()); |
743 |
String result = e.invokeAny(l); |
744 |
assertSame(TEST_STRING, result); |
745 |
} finally { |
746 |
joinPool(e); |
747 |
} |
748 |
} |
749 |
|
750 |
/** |
751 |
* invokeAll(null) throws NullPointerException |
752 |
*/ |
753 |
public void testInvokeAll1() throws Throwable { |
754 |
ExecutorService e = new ForkJoinPool(1); |
755 |
try { |
756 |
e.invokeAll(null); |
757 |
shouldThrow(); |
758 |
} catch (NullPointerException success) { |
759 |
} finally { |
760 |
joinPool(e); |
761 |
} |
762 |
} |
763 |
|
764 |
/** |
765 |
* invokeAll(empty collection) returns empty collection |
766 |
*/ |
767 |
public void testInvokeAll2() throws InterruptedException { |
768 |
ExecutorService e = new ForkJoinPool(1); |
769 |
try { |
770 |
List<Future<String>> r |
771 |
= e.invokeAll(new ArrayList<Callable<String>>()); |
772 |
assertTrue(r.isEmpty()); |
773 |
} finally { |
774 |
joinPool(e); |
775 |
} |
776 |
} |
777 |
|
778 |
/** |
779 |
* invokeAll(c) throws NullPointerException if c has null elements |
780 |
*/ |
781 |
public void testInvokeAll3() throws InterruptedException { |
782 |
ExecutorService e = new ForkJoinPool(1); |
783 |
try { |
784 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
785 |
l.add(new StringTask()); |
786 |
l.add(null); |
787 |
e.invokeAll(l); |
788 |
shouldThrow(); |
789 |
} catch (NullPointerException success) { |
790 |
} finally { |
791 |
joinPool(e); |
792 |
} |
793 |
} |
794 |
|
795 |
/** |
796 |
* get of returned element of invokeAll(c) throws |
797 |
* ExecutionException on failed task |
798 |
*/ |
799 |
public void testInvokeAll4() throws Throwable { |
800 |
ExecutorService e = new ForkJoinPool(1); |
801 |
try { |
802 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
803 |
l.add(new NPETask()); |
804 |
List<Future<String>> result = e.invokeAll(l); |
805 |
assertEquals(1, result.size()); |
806 |
for (Future<String> future : result) |
807 |
future.get(); |
808 |
shouldThrow(); |
809 |
} catch (ExecutionException success) { |
810 |
} finally { |
811 |
joinPool(e); |
812 |
} |
813 |
} |
814 |
|
815 |
/** |
816 |
* invokeAll(c) returns results of all completed tasks in c |
817 |
*/ |
818 |
public void testInvokeAll5() throws Throwable { |
819 |
ExecutorService e = new ForkJoinPool(1); |
820 |
try { |
821 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
822 |
l.add(new StringTask()); |
823 |
l.add(new StringTask()); |
824 |
List<Future<String>> result = e.invokeAll(l); |
825 |
assertEquals(2, result.size()); |
826 |
for (Future<String> future : result) |
827 |
assertSame(TEST_STRING, future.get()); |
828 |
} finally { |
829 |
joinPool(e); |
830 |
} |
831 |
} |
832 |
|
833 |
|
834 |
/** |
835 |
* timed invokeAny(null) throws NullPointerException |
836 |
*/ |
837 |
public void testTimedInvokeAny1() throws Throwable { |
838 |
ExecutorService e = new ForkJoinPool(1); |
839 |
try { |
840 |
e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS); |
841 |
shouldThrow(); |
842 |
} catch (NullPointerException success) { |
843 |
} finally { |
844 |
joinPool(e); |
845 |
} |
846 |
} |
847 |
|
848 |
/** |
849 |
* timed invokeAny(null time unit) throws NullPointerException |
850 |
*/ |
851 |
public void testTimedInvokeAnyNullTimeUnit() throws Throwable { |
852 |
ExecutorService e = new ForkJoinPool(1); |
853 |
try { |
854 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
855 |
l.add(new StringTask()); |
856 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
857 |
shouldThrow(); |
858 |
} catch (NullPointerException success) { |
859 |
} finally { |
860 |
joinPool(e); |
861 |
} |
862 |
} |
863 |
|
864 |
/** |
865 |
* timed invokeAny(empty collection) throws IllegalArgumentException |
866 |
*/ |
867 |
public void testTimedInvokeAny2() throws Throwable { |
868 |
ExecutorService e = new ForkJoinPool(1); |
869 |
try { |
870 |
e.invokeAny(new ArrayList<Callable<String>>(), |
871 |
MEDIUM_DELAY_MS, MILLISECONDS); |
872 |
shouldThrow(); |
873 |
} catch (IllegalArgumentException success) { |
874 |
} finally { |
875 |
joinPool(e); |
876 |
} |
877 |
} |
878 |
|
879 |
/** |
880 |
* timed invokeAny(c) throws NullPointerException if c has null elements |
881 |
*/ |
882 |
public void testTimedInvokeAny3() throws Throwable { |
883 |
ExecutorService e = new ForkJoinPool(1); |
884 |
try { |
885 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
886 |
l.add(new StringTask()); |
887 |
l.add(null); |
888 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
889 |
shouldThrow(); |
890 |
} catch (NullPointerException success) { |
891 |
} finally { |
892 |
joinPool(e); |
893 |
} |
894 |
} |
895 |
|
896 |
/** |
897 |
* timed invokeAny(c) throws ExecutionException if no task completes |
898 |
*/ |
899 |
public void testTimedInvokeAny4() throws Throwable { |
900 |
ExecutorService e = new ForkJoinPool(1); |
901 |
try { |
902 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
903 |
l.add(new NPETask()); |
904 |
e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
905 |
shouldThrow(); |
906 |
} catch (ExecutionException success) { |
907 |
} finally { |
908 |
joinPool(e); |
909 |
} |
910 |
} |
911 |
|
912 |
/** |
913 |
* timed invokeAny(c) returns result of some task in c |
914 |
*/ |
915 |
public void testTimedInvokeAny5() throws Throwable { |
916 |
ExecutorService e = new ForkJoinPool(1); |
917 |
try { |
918 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
919 |
l.add(new StringTask()); |
920 |
l.add(new StringTask()); |
921 |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS); |
922 |
assertSame(TEST_STRING, result); |
923 |
} finally { |
924 |
joinPool(e); |
925 |
} |
926 |
} |
927 |
|
928 |
/** |
929 |
* timed invokeAll(null) throws NullPointerException |
930 |
*/ |
931 |
public void testTimedInvokeAll1() throws Throwable { |
932 |
ExecutorService e = new ForkJoinPool(1); |
933 |
try { |
934 |
e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS); |
935 |
shouldThrow(); |
936 |
} catch (NullPointerException success) { |
937 |
} finally { |
938 |
joinPool(e); |
939 |
} |
940 |
} |
941 |
|
942 |
/** |
943 |
* timed invokeAll(null time unit) throws NullPointerException |
944 |
*/ |
945 |
public void testTimedInvokeAllNullTimeUnit() throws Throwable { |
946 |
ExecutorService e = new ForkJoinPool(1); |
947 |
try { |
948 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
949 |
l.add(new StringTask()); |
950 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
951 |
shouldThrow(); |
952 |
} catch (NullPointerException success) { |
953 |
} finally { |
954 |
joinPool(e); |
955 |
} |
956 |
} |
957 |
|
958 |
/** |
959 |
* timed invokeAll(empty collection) returns empty collection |
960 |
*/ |
961 |
public void testTimedInvokeAll2() throws InterruptedException { |
962 |
ExecutorService e = new ForkJoinPool(1); |
963 |
try { |
964 |
List<Future<String>> r |
965 |
= e.invokeAll(new ArrayList<Callable<String>>(), |
966 |
MEDIUM_DELAY_MS, MILLISECONDS); |
967 |
assertTrue(r.isEmpty()); |
968 |
} finally { |
969 |
joinPool(e); |
970 |
} |
971 |
} |
972 |
|
973 |
/** |
974 |
* timed invokeAll(c) throws NullPointerException if c has null elements |
975 |
*/ |
976 |
public void testTimedInvokeAll3() throws InterruptedException { |
977 |
ExecutorService e = new ForkJoinPool(1); |
978 |
try { |
979 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
980 |
l.add(new StringTask()); |
981 |
l.add(null); |
982 |
e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
983 |
shouldThrow(); |
984 |
} catch (NullPointerException success) { |
985 |
} finally { |
986 |
joinPool(e); |
987 |
} |
988 |
} |
989 |
|
990 |
/** |
991 |
* get of returned element of invokeAll(c) throws exception on failed task |
992 |
*/ |
993 |
public void testTimedInvokeAll4() throws Throwable { |
994 |
ExecutorService e = new ForkJoinPool(1); |
995 |
try { |
996 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
997 |
l.add(new NPETask()); |
998 |
List<Future<String>> result |
999 |
= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1000 |
assertEquals(1, result.size()); |
1001 |
for (Future<String> future : result) |
1002 |
future.get(); |
1003 |
shouldThrow(); |
1004 |
} catch (ExecutionException success) { |
1005 |
} finally { |
1006 |
joinPool(e); |
1007 |
} |
1008 |
} |
1009 |
|
1010 |
/** |
1011 |
* timed invokeAll(c) returns results of all completed tasks in c |
1012 |
*/ |
1013 |
public void testTimedInvokeAll5() throws Throwable { |
1014 |
ExecutorService e = new ForkJoinPool(1); |
1015 |
try { |
1016 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
1017 |
l.add(new StringTask()); |
1018 |
l.add(new StringTask()); |
1019 |
List<Future<String>> result |
1020 |
= e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS); |
1021 |
assertEquals(2, result.size()); |
1022 |
for (Future<String> future : result) |
1023 |
assertSame(TEST_STRING, future.get()); |
1024 |
} finally { |
1025 |
joinPool(e); |
1026 |
} |
1027 |
} |
1028 |
|
1029 |
} |