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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 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 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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* Succesfully 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() == 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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} |
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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; |
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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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*/ |
279 |
public void testSetMaintainsParallelism() { |
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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.setMaintainsParallelism(false); |
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assertFalse(p.getMaintainsParallelism()); |
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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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* setAsyncMode changes policy reported by |
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* getAsyncMode. |
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*/ |
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public void testSetAsyncMode() { |
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ForkJoinPool p = null; |
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try { |
297 |
p = new ForkJoinPool(1); |
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p.setAsyncMode(true); |
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assertTrue(p.getAsyncMode()); |
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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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/** |
306 |
* setUncaughtExceptionHandler changes handler for uncaught exceptions. |
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* |
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* Additionally tests: Overriding ForkJoinWorkerThread.onStart |
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* performs its defined action |
310 |
*/ |
311 |
public void testSetUncaughtExceptionHandler() { |
312 |
ForkJoinPool p = null; |
313 |
try { |
314 |
p = new ForkJoinPool(1, new FailingThreadFactory()); |
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MyHandler eh = new MyHandler(); |
316 |
p.setUncaughtExceptionHandler(eh); |
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assertEquals(eh, p.getUncaughtExceptionHandler()); |
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p.execute(new FailingTask()); |
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Thread.sleep(MEDIUM_DELAY_MS); |
320 |
assertTrue(eh.catches > 0); |
321 |
} catch(InterruptedException e){ |
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unexpectedException(); |
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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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* setUncaughtExceptionHandler of null removes handler |
330 |
*/ |
331 |
public void testSetUncaughtExceptionHandler2() { |
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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.setUncaughtExceptionHandler(null); |
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assertNull(p.getUncaughtExceptionHandler()); |
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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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/** |
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* After invoking a single task, isQuiescent is true, |
345 |
* queues are empty, threads are not active, and |
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* construction parameters continue to hold |
347 |
*/ |
348 |
public void testisQuiescent() { |
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ForkJoinPool p = null; |
350 |
try { |
351 |
p = new ForkJoinPool(2); |
352 |
p.invoke(new FibTask(20)); |
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assertTrue(p.getFactory() == ForkJoinPool.defaultForkJoinWorkerThreadFactory); |
354 |
Thread.sleep(MEDIUM_DELAY_MS); |
355 |
assertTrue(p.isQuiescent()); |
356 |
assertTrue(p.getMaintainsParallelism()); |
357 |
assertFalse(p.getAsyncMode()); |
358 |
assertTrue(p.getActiveThreadCount() == 0); |
359 |
assertTrue(p.getQueuedTaskCount() == 0); |
360 |
assertTrue(p.getQueuedSubmissionCount() == 0); |
361 |
assertFalse(p.hasQueuedSubmissions()); |
362 |
assertFalse(p.isShutdown()); |
363 |
assertFalse(p.isTerminating()); |
364 |
assertFalse(p.isTerminated()); |
365 |
} catch(InterruptedException e){ |
366 |
unexpectedException(); |
367 |
} finally { |
368 |
joinPool(p); |
369 |
} |
370 |
} |
371 |
|
372 |
/** |
373 |
* Completed submit(ForkJoinTask) returns result |
374 |
*/ |
375 |
public void testSubmitForkJoinTask() { |
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 |
} catch (ExecutionException ex) { |
383 |
unexpectedException(); |
384 |
} catch (InterruptedException ex) { |
385 |
unexpectedException(); |
386 |
} finally { |
387 |
joinPool(p); |
388 |
} |
389 |
} |
390 |
|
391 |
/** |
392 |
* A task submitted after shutdown is rejected |
393 |
*/ |
394 |
public void testSubmitAfterShutdown() { |
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ForkJoinPool p = null; |
396 |
try { |
397 |
p = new ForkJoinPool(1); |
398 |
p.shutdown(); |
399 |
assertTrue(p.isShutdown()); |
400 |
ForkJoinTask<Integer> f = p.submit(new FibTask(8)); |
401 |
shouldThrow(); |
402 |
} catch (RejectedExecutionException success) { |
403 |
} finally { |
404 |
joinPool(p); |
405 |
} |
406 |
} |
407 |
|
408 |
/** |
409 |
* Pool maintains parallelism when using ManagedBlocker |
410 |
*/ |
411 |
public void testBlockingForkJoinTask() { |
412 |
ForkJoinPool p = null; |
413 |
try { |
414 |
p = new ForkJoinPool(4); |
415 |
ReentrantLock lock = new ReentrantLock(); |
416 |
ManagedLocker locker = new ManagedLocker(lock); |
417 |
ForkJoinTask<Integer> f = new LockingFibTask(30, locker, lock); |
418 |
p.execute(f); |
419 |
assertTrue(p.getPoolSize() >= 4); |
420 |
int r = f.get(); |
421 |
assertTrue(r == 832040); |
422 |
} catch (ExecutionException ex) { |
423 |
unexpectedException(); |
424 |
} catch (InterruptedException ex) { |
425 |
unexpectedException(); |
426 |
} finally { |
427 |
joinPool(p); |
428 |
} |
429 |
} |
430 |
|
431 |
/** |
432 |
* pollSubmission returns unexecuted submitted task, if present |
433 |
*/ |
434 |
public void testPollSubmission() { |
435 |
SubFJP p = null; |
436 |
try { |
437 |
p = new SubFJP(); |
438 |
ForkJoinTask a = p.submit(new MediumRunnable()); |
439 |
ForkJoinTask b = p.submit(new MediumRunnable()); |
440 |
ForkJoinTask c = p.submit(new MediumRunnable()); |
441 |
ForkJoinTask r = p.pollSubmission(); |
442 |
assertTrue(r == a || r == b || r == c); |
443 |
assertFalse(r.isDone()); |
444 |
} finally { |
445 |
joinPool(p); |
446 |
} |
447 |
} |
448 |
|
449 |
/** |
450 |
* drainTasksTo transfers unexecuted submitted tasks, if present |
451 |
*/ |
452 |
public void testDrainTasksTo() { |
453 |
SubFJP p = null; |
454 |
try { |
455 |
p = new SubFJP(); |
456 |
ForkJoinTask a = p.submit(new MediumRunnable()); |
457 |
ForkJoinTask b = p.submit(new MediumRunnable()); |
458 |
ForkJoinTask c = p.submit(new MediumRunnable()); |
459 |
ArrayList<ForkJoinTask> al = new ArrayList(); |
460 |
p.drainTasksTo(al); |
461 |
assertTrue(al.size() > 0); |
462 |
for (ForkJoinTask r : al) { |
463 |
assertTrue(r == a || r == b || r == c); |
464 |
assertFalse(r.isDone()); |
465 |
} |
466 |
} finally { |
467 |
joinPool(p); |
468 |
} |
469 |
} |
470 |
|
471 |
|
472 |
// FJ Versions of AbstractExecutorService tests |
473 |
|
474 |
/** |
475 |
* execute(runnable) runs it to completion |
476 |
*/ |
477 |
public void testExecuteRunnable() { |
478 |
try { |
479 |
ExecutorService e = new ForkJoinPool(1); |
480 |
TrackedShortRunnable task = new TrackedShortRunnable(); |
481 |
assertFalse(task.done); |
482 |
Future<?> future = e.submit(task); |
483 |
future.get(); |
484 |
assertTrue(task.done); |
485 |
} |
486 |
catch (ExecutionException ex) { |
487 |
unexpectedException(); |
488 |
} |
489 |
catch (InterruptedException ex) { |
490 |
unexpectedException(); |
491 |
} |
492 |
} |
493 |
|
494 |
|
495 |
/** |
496 |
* Completed submit(callable) returns result |
497 |
*/ |
498 |
public void testSubmitCallable() { |
499 |
try { |
500 |
ExecutorService e = new ForkJoinPool(1); |
501 |
Future<String> future = e.submit(new StringTask()); |
502 |
String result = future.get(); |
503 |
assertSame(TEST_STRING, result); |
504 |
} |
505 |
catch (ExecutionException ex) { |
506 |
unexpectedException(); |
507 |
} |
508 |
catch (InterruptedException ex) { |
509 |
unexpectedException(); |
510 |
} |
511 |
} |
512 |
|
513 |
/** |
514 |
* Completed submit(runnable) returns successfully |
515 |
*/ |
516 |
public void testSubmitRunnable() { |
517 |
try { |
518 |
ExecutorService e = new ForkJoinPool(1); |
519 |
Future<?> future = e.submit(new NoOpRunnable()); |
520 |
future.get(); |
521 |
assertTrue(future.isDone()); |
522 |
} |
523 |
catch (ExecutionException ex) { |
524 |
unexpectedException(); |
525 |
} |
526 |
catch (InterruptedException ex) { |
527 |
unexpectedException(); |
528 |
} |
529 |
} |
530 |
|
531 |
/** |
532 |
* Completed submit(runnable, result) returns result |
533 |
*/ |
534 |
public void testSubmitRunnable2() { |
535 |
try { |
536 |
ExecutorService e = new ForkJoinPool(1); |
537 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
538 |
String result = future.get(); |
539 |
assertSame(TEST_STRING, result); |
540 |
} |
541 |
catch (ExecutionException ex) { |
542 |
unexpectedException(); |
543 |
} |
544 |
catch (InterruptedException ex) { |
545 |
unexpectedException(); |
546 |
} |
547 |
} |
548 |
|
549 |
|
550 |
/** |
551 |
* A submitted privileged action to completion |
552 |
*/ |
553 |
public void testSubmitPrivilegedAction() { |
554 |
Policy savedPolicy = null; |
555 |
try { |
556 |
savedPolicy = Policy.getPolicy(); |
557 |
AdjustablePolicy policy = new AdjustablePolicy(); |
558 |
policy.addPermission(new RuntimePermission("getContextClassLoader")); |
559 |
policy.addPermission(new RuntimePermission("setContextClassLoader")); |
560 |
Policy.setPolicy(policy); |
561 |
} catch(AccessControlException ok) { |
562 |
return; |
563 |
} |
564 |
try { |
565 |
ExecutorService e = new ForkJoinPool(1); |
566 |
Future future = e.submit(Executors.callable(new PrivilegedAction() { |
567 |
public Object run() { |
568 |
return TEST_STRING; |
569 |
}})); |
570 |
|
571 |
Object result = future.get(); |
572 |
assertSame(TEST_STRING, result); |
573 |
} |
574 |
catch (ExecutionException ex) { |
575 |
unexpectedException(); |
576 |
} |
577 |
catch (InterruptedException ex) { |
578 |
unexpectedException(); |
579 |
} |
580 |
finally { |
581 |
try { |
582 |
Policy.setPolicy(savedPolicy); |
583 |
} catch(AccessControlException ok) { |
584 |
return; |
585 |
} |
586 |
} |
587 |
} |
588 |
|
589 |
/** |
590 |
* A submitted a privileged exception action runs to completion |
591 |
*/ |
592 |
public void testSubmitPrivilegedExceptionAction() { |
593 |
Policy savedPolicy = null; |
594 |
try { |
595 |
savedPolicy = Policy.getPolicy(); |
596 |
AdjustablePolicy policy = new AdjustablePolicy(); |
597 |
policy.addPermission(new RuntimePermission("getContextClassLoader")); |
598 |
policy.addPermission(new RuntimePermission("setContextClassLoader")); |
599 |
Policy.setPolicy(policy); |
600 |
} catch(AccessControlException ok) { |
601 |
return; |
602 |
} |
603 |
|
604 |
try { |
605 |
ExecutorService e = new ForkJoinPool(1); |
606 |
Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() { |
607 |
public Object run() { |
608 |
return TEST_STRING; |
609 |
}})); |
610 |
|
611 |
Object result = future.get(); |
612 |
assertSame(TEST_STRING, result); |
613 |
} |
614 |
catch (ExecutionException ex) { |
615 |
unexpectedException(); |
616 |
} |
617 |
catch (InterruptedException ex) { |
618 |
unexpectedException(); |
619 |
} |
620 |
finally { |
621 |
Policy.setPolicy(savedPolicy); |
622 |
} |
623 |
} |
624 |
|
625 |
/** |
626 |
* A submitted failed privileged exception action reports exception |
627 |
*/ |
628 |
public void testSubmitFailedPrivilegedExceptionAction() { |
629 |
Policy savedPolicy = null; |
630 |
try { |
631 |
savedPolicy = Policy.getPolicy(); |
632 |
AdjustablePolicy policy = new AdjustablePolicy(); |
633 |
policy.addPermission(new RuntimePermission("getContextClassLoader")); |
634 |
policy.addPermission(new RuntimePermission("setContextClassLoader")); |
635 |
Policy.setPolicy(policy); |
636 |
} catch(AccessControlException ok) { |
637 |
return; |
638 |
} |
639 |
|
640 |
|
641 |
try { |
642 |
ExecutorService e = new ForkJoinPool(1); |
643 |
Future future = e.submit(Executors.callable(new PrivilegedExceptionAction() { |
644 |
public Object run() throws Exception { |
645 |
throw new IndexOutOfBoundsException(); |
646 |
}})); |
647 |
|
648 |
Object result = future.get(); |
649 |
shouldThrow(); |
650 |
} |
651 |
catch (ExecutionException success) { |
652 |
} catch (CancellationException success) { |
653 |
} catch (InterruptedException ex) { |
654 |
unexpectedException(); |
655 |
} |
656 |
finally { |
657 |
Policy.setPolicy(savedPolicy); |
658 |
} |
659 |
} |
660 |
|
661 |
/** |
662 |
* execute(null runnable) throws NPE |
663 |
*/ |
664 |
public void testExecuteNullRunnable() { |
665 |
try { |
666 |
ExecutorService e = new ForkJoinPool(1); |
667 |
TrackedShortRunnable task = null; |
668 |
Future<?> future = e.submit(task); |
669 |
shouldThrow(); |
670 |
} |
671 |
catch (NullPointerException success) { |
672 |
} |
673 |
catch (Exception ex) { |
674 |
unexpectedException(); |
675 |
} |
676 |
} |
677 |
|
678 |
|
679 |
/** |
680 |
* submit(null callable) throws NPE |
681 |
*/ |
682 |
public void testSubmitNullCallable() { |
683 |
try { |
684 |
ExecutorService e = new ForkJoinPool(1); |
685 |
StringTask t = null; |
686 |
Future<String> future = e.submit(t); |
687 |
shouldThrow(); |
688 |
} |
689 |
catch (NullPointerException success) { |
690 |
} |
691 |
catch (Exception ex) { |
692 |
unexpectedException(); |
693 |
} |
694 |
} |
695 |
|
696 |
|
697 |
/** |
698 |
* Blocking on submit(callable) throws InterruptedException if |
699 |
* caller interrupted. |
700 |
*/ |
701 |
public void testInterruptedSubmit() { |
702 |
final ForkJoinPool p = new ForkJoinPool(1); |
703 |
Thread t = new Thread(new Runnable() { |
704 |
public void run() { |
705 |
try { |
706 |
p.submit(new Callable<Object>() { |
707 |
public Object call() { |
708 |
try { |
709 |
Thread.sleep(MEDIUM_DELAY_MS); |
710 |
shouldThrow(); |
711 |
} catch(InterruptedException e){ |
712 |
} |
713 |
return null; |
714 |
} |
715 |
}).get(); |
716 |
} catch(InterruptedException success){ |
717 |
} catch(Exception e) { |
718 |
unexpectedException(); |
719 |
} |
720 |
|
721 |
} |
722 |
}); |
723 |
try { |
724 |
t.start(); |
725 |
Thread.sleep(SHORT_DELAY_MS); |
726 |
t.interrupt(); |
727 |
} catch(Exception e){ |
728 |
unexpectedException(); |
729 |
} |
730 |
joinPool(p); |
731 |
} |
732 |
|
733 |
/** |
734 |
* get of submit(callable) throws ExecutionException if callable |
735 |
* throws exception |
736 |
*/ |
737 |
public void testSubmitEE() { |
738 |
ForkJoinPool p = new ForkJoinPool(1); |
739 |
|
740 |
try { |
741 |
Callable c = new Callable() { |
742 |
public Object call() { |
743 |
int i = 5/0; |
744 |
return Boolean.TRUE; |
745 |
} |
746 |
}; |
747 |
|
748 |
for(int i =0; i < 5; i++){ |
749 |
p.submit(c).get(); |
750 |
} |
751 |
|
752 |
shouldThrow(); |
753 |
} |
754 |
catch(ExecutionException success){ |
755 |
} catch (CancellationException success) { |
756 |
} catch(Exception e) { |
757 |
unexpectedException(); |
758 |
} |
759 |
joinPool(p); |
760 |
} |
761 |
|
762 |
/** |
763 |
* invokeAny(null) throws NPE |
764 |
*/ |
765 |
public void testInvokeAny1() { |
766 |
ExecutorService e = new ForkJoinPool(1); |
767 |
try { |
768 |
e.invokeAny(null); |
769 |
} catch (NullPointerException success) { |
770 |
} catch(Exception ex) { |
771 |
unexpectedException(); |
772 |
} finally { |
773 |
joinPool(e); |
774 |
} |
775 |
} |
776 |
|
777 |
/** |
778 |
* invokeAny(empty collection) throws IAE |
779 |
*/ |
780 |
public void testInvokeAny2() { |
781 |
ExecutorService e = new ForkJoinPool(1); |
782 |
try { |
783 |
e.invokeAny(new ArrayList<Callable<String>>()); |
784 |
} catch (IllegalArgumentException success) { |
785 |
} catch(Exception ex) { |
786 |
unexpectedException(); |
787 |
} finally { |
788 |
joinPool(e); |
789 |
} |
790 |
} |
791 |
|
792 |
/** |
793 |
* invokeAny(c) throws NPE if c has null elements |
794 |
*/ |
795 |
public void testInvokeAny3() { |
796 |
ExecutorService e = new ForkJoinPool(1); |
797 |
try { |
798 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
799 |
l.add(new StringTask()); |
800 |
l.add(null); |
801 |
e.invokeAny(l); |
802 |
} catch (NullPointerException success) { |
803 |
} catch(Exception ex) { |
804 |
ex.printStackTrace(); |
805 |
unexpectedException(); |
806 |
} finally { |
807 |
joinPool(e); |
808 |
} |
809 |
} |
810 |
|
811 |
/** |
812 |
* invokeAny(c) throws ExecutionException if no task in c completes |
813 |
*/ |
814 |
public void testInvokeAny4() { |
815 |
ExecutorService e = new ForkJoinPool(1); |
816 |
try { |
817 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
818 |
l.add(new NPETask()); |
819 |
e.invokeAny(l); |
820 |
} catch(ExecutionException success) { |
821 |
} catch (CancellationException success) { |
822 |
} catch(Exception ex) { |
823 |
unexpectedException(); |
824 |
} finally { |
825 |
joinPool(e); |
826 |
} |
827 |
} |
828 |
|
829 |
/** |
830 |
* invokeAny(c) returns result of some task in c if at least one completes |
831 |
*/ |
832 |
public void testInvokeAny5() { |
833 |
ExecutorService e = new ForkJoinPool(1); |
834 |
try { |
835 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
836 |
l.add(new StringTask()); |
837 |
l.add(new StringTask()); |
838 |
String result = e.invokeAny(l); |
839 |
assertSame(TEST_STRING, result); |
840 |
} catch (ExecutionException success) { |
841 |
} catch (CancellationException success) { |
842 |
} catch(Exception ex) { |
843 |
unexpectedException(); |
844 |
} finally { |
845 |
joinPool(e); |
846 |
} |
847 |
} |
848 |
|
849 |
/** |
850 |
* invokeAll(null) throws NPE |
851 |
*/ |
852 |
public void testInvokeAll1() { |
853 |
ExecutorService e = new ForkJoinPool(1); |
854 |
try { |
855 |
e.invokeAll(null); |
856 |
} catch (NullPointerException success) { |
857 |
} catch(Exception ex) { |
858 |
unexpectedException(); |
859 |
} finally { |
860 |
joinPool(e); |
861 |
} |
862 |
} |
863 |
|
864 |
/** |
865 |
* invokeAll(empty collection) returns empty collection |
866 |
*/ |
867 |
public void testInvokeAll2() { |
868 |
ExecutorService e = new ForkJoinPool(1); |
869 |
try { |
870 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>()); |
871 |
assertTrue(r.isEmpty()); |
872 |
} catch(Exception ex) { |
873 |
unexpectedException(); |
874 |
} finally { |
875 |
joinPool(e); |
876 |
} |
877 |
} |
878 |
|
879 |
/** |
880 |
* invokeAll(c) throws NPE if c has null elements |
881 |
*/ |
882 |
public void testInvokeAll3() { |
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.invokeAll(l); |
889 |
} catch (NullPointerException success) { |
890 |
} catch(Exception ex) { |
891 |
unexpectedException(); |
892 |
} finally { |
893 |
joinPool(e); |
894 |
} |
895 |
} |
896 |
|
897 |
/** |
898 |
* get of returned element of invokeAll(c) throws exception on failed task |
899 |
*/ |
900 |
public void testInvokeAll4() { |
901 |
ExecutorService e = new ForkJoinPool(1); |
902 |
try { |
903 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
904 |
l.add(new NPETask()); |
905 |
List<Future<String>> result = e.invokeAll(l); |
906 |
assertEquals(1, result.size()); |
907 |
for (Iterator<Future<String>> it = result.iterator(); it.hasNext();) |
908 |
it.next().get(); |
909 |
} catch(ExecutionException success) { |
910 |
} catch (CancellationException success) { |
911 |
} catch(Exception ex) { |
912 |
ex.printStackTrace(); |
913 |
unexpectedException(); |
914 |
} finally { |
915 |
joinPool(e); |
916 |
} |
917 |
} |
918 |
|
919 |
/** |
920 |
* invokeAll(c) returns results of all completed tasks in c |
921 |
*/ |
922 |
public void testInvokeAll5() { |
923 |
ExecutorService e = new ForkJoinPool(1); |
924 |
try { |
925 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
926 |
l.add(new StringTask()); |
927 |
l.add(new StringTask()); |
928 |
List<Future<String>> result = e.invokeAll(l); |
929 |
assertEquals(2, result.size()); |
930 |
for (Iterator<Future<String>> it = result.iterator(); it.hasNext();) |
931 |
assertSame(TEST_STRING, it.next().get()); |
932 |
} catch (ExecutionException success) { |
933 |
} catch (CancellationException success) { |
934 |
} catch(Exception ex) { |
935 |
ex.printStackTrace(); |
936 |
unexpectedException(); |
937 |
} finally { |
938 |
joinPool(e); |
939 |
} |
940 |
} |
941 |
|
942 |
|
943 |
/** |
944 |
* timed invokeAny(null) throws NPE |
945 |
*/ |
946 |
public void testTimedInvokeAny1() { |
947 |
ExecutorService e = new ForkJoinPool(1); |
948 |
try { |
949 |
e.invokeAny(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
950 |
} catch (NullPointerException success) { |
951 |
} catch(Exception ex) { |
952 |
ex.printStackTrace(); |
953 |
unexpectedException(); |
954 |
} finally { |
955 |
joinPool(e); |
956 |
} |
957 |
} |
958 |
|
959 |
/** |
960 |
* timed invokeAny(null time unit) throws NPE |
961 |
*/ |
962 |
public void testTimedInvokeAnyNullTimeUnit() { |
963 |
ExecutorService e = new ForkJoinPool(1); |
964 |
try { |
965 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
966 |
l.add(new StringTask()); |
967 |
e.invokeAny(l, MEDIUM_DELAY_MS, null); |
968 |
} catch (NullPointerException success) { |
969 |
} catch(Exception ex) { |
970 |
ex.printStackTrace(); |
971 |
unexpectedException(); |
972 |
} finally { |
973 |
joinPool(e); |
974 |
} |
975 |
} |
976 |
|
977 |
/** |
978 |
* timed invokeAny(empty collection) throws IAE |
979 |
*/ |
980 |
public void testTimedInvokeAny2() { |
981 |
ExecutorService e = new ForkJoinPool(1); |
982 |
try { |
983 |
e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
984 |
} catch (IllegalArgumentException success) { |
985 |
} catch(Exception ex) { |
986 |
ex.printStackTrace(); |
987 |
unexpectedException(); |
988 |
} finally { |
989 |
joinPool(e); |
990 |
} |
991 |
} |
992 |
|
993 |
/** |
994 |
* timed invokeAny(c) throws NPE if c has null elements |
995 |
*/ |
996 |
public void testTimedInvokeAny3() { |
997 |
ExecutorService e = new ForkJoinPool(1); |
998 |
try { |
999 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
1000 |
l.add(new StringTask()); |
1001 |
l.add(null); |
1002 |
e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
1003 |
} catch (NullPointerException success) { |
1004 |
} catch(Exception ex) { |
1005 |
ex.printStackTrace(); |
1006 |
unexpectedException(); |
1007 |
} finally { |
1008 |
joinPool(e); |
1009 |
} |
1010 |
} |
1011 |
|
1012 |
/** |
1013 |
* timed invokeAny(c) throws ExecutionException if no task completes |
1014 |
*/ |
1015 |
public void testTimedInvokeAny4() { |
1016 |
ExecutorService e = new ForkJoinPool(1); |
1017 |
try { |
1018 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
1019 |
l.add(new NPETask()); |
1020 |
e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
1021 |
} catch(ExecutionException success) { |
1022 |
} catch (CancellationException success) { |
1023 |
} catch(Exception ex) { |
1024 |
ex.printStackTrace(); |
1025 |
unexpectedException(); |
1026 |
} finally { |
1027 |
joinPool(e); |
1028 |
} |
1029 |
} |
1030 |
|
1031 |
/** |
1032 |
* timed invokeAny(c) returns result of some task in c |
1033 |
*/ |
1034 |
public void testTimedInvokeAny5() { |
1035 |
ExecutorService e = new ForkJoinPool(1); |
1036 |
try { |
1037 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
1038 |
l.add(new StringTask()); |
1039 |
l.add(new StringTask()); |
1040 |
String result = e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
1041 |
assertSame(TEST_STRING, result); |
1042 |
} catch (ExecutionException success) { |
1043 |
} catch (CancellationException success) { |
1044 |
} catch(Exception ex) { |
1045 |
ex.printStackTrace(); |
1046 |
unexpectedException(); |
1047 |
} finally { |
1048 |
joinPool(e); |
1049 |
} |
1050 |
} |
1051 |
|
1052 |
/** |
1053 |
* timed invokeAll(null) throws NPE |
1054 |
*/ |
1055 |
public void testTimedInvokeAll1() { |
1056 |
ExecutorService e = new ForkJoinPool(1); |
1057 |
try { |
1058 |
e.invokeAll(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
1059 |
} catch (NullPointerException success) { |
1060 |
} catch(Exception ex) { |
1061 |
ex.printStackTrace(); |
1062 |
unexpectedException(); |
1063 |
} finally { |
1064 |
joinPool(e); |
1065 |
} |
1066 |
} |
1067 |
|
1068 |
/** |
1069 |
* timed invokeAll(null time unit) throws NPE |
1070 |
*/ |
1071 |
public void testTimedInvokeAllNullTimeUnit() { |
1072 |
ExecutorService e = new ForkJoinPool(1); |
1073 |
try { |
1074 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
1075 |
l.add(new StringTask()); |
1076 |
e.invokeAll(l, MEDIUM_DELAY_MS, null); |
1077 |
} catch (NullPointerException success) { |
1078 |
} catch(Exception ex) { |
1079 |
ex.printStackTrace(); |
1080 |
unexpectedException(); |
1081 |
} finally { |
1082 |
joinPool(e); |
1083 |
} |
1084 |
} |
1085 |
|
1086 |
/** |
1087 |
* timed invokeAll(empty collection) returns empty collection |
1088 |
*/ |
1089 |
public void testTimedInvokeAll2() { |
1090 |
ExecutorService e = new ForkJoinPool(1); |
1091 |
try { |
1092 |
List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
1093 |
assertTrue(r.isEmpty()); |
1094 |
} catch(Exception ex) { |
1095 |
ex.printStackTrace(); |
1096 |
unexpectedException(); |
1097 |
} finally { |
1098 |
joinPool(e); |
1099 |
} |
1100 |
} |
1101 |
|
1102 |
/** |
1103 |
* timed invokeAll(c) throws NPE if c has null elements |
1104 |
*/ |
1105 |
public void testTimedInvokeAll3() { |
1106 |
ExecutorService e = new ForkJoinPool(1); |
1107 |
try { |
1108 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
1109 |
l.add(new StringTask()); |
1110 |
l.add(null); |
1111 |
e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
1112 |
} catch (NullPointerException success) { |
1113 |
} catch(Exception ex) { |
1114 |
ex.printStackTrace(); |
1115 |
unexpectedException(); |
1116 |
} finally { |
1117 |
joinPool(e); |
1118 |
} |
1119 |
} |
1120 |
|
1121 |
/** |
1122 |
* get of returned element of invokeAll(c) throws exception on failed task |
1123 |
*/ |
1124 |
public void testTimedInvokeAll4() { |
1125 |
ExecutorService e = new ForkJoinPool(1); |
1126 |
try { |
1127 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
1128 |
l.add(new NPETask()); |
1129 |
List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
1130 |
assertEquals(1, result.size()); |
1131 |
for (Iterator<Future<String>> it = result.iterator(); it.hasNext();) |
1132 |
it.next().get(); |
1133 |
} catch(ExecutionException success) { |
1134 |
} catch (CancellationException success) { |
1135 |
} catch(Exception ex) { |
1136 |
ex.printStackTrace(); |
1137 |
unexpectedException(); |
1138 |
} finally { |
1139 |
joinPool(e); |
1140 |
} |
1141 |
} |
1142 |
|
1143 |
/** |
1144 |
* timed invokeAll(c) returns results of all completed tasks in c |
1145 |
*/ |
1146 |
public void testTimedInvokeAll5() { |
1147 |
ExecutorService e = new ForkJoinPool(1); |
1148 |
try { |
1149 |
ArrayList<Callable<String>> l = new ArrayList<Callable<String>>(); |
1150 |
l.add(new StringTask()); |
1151 |
l.add(new StringTask()); |
1152 |
List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS); |
1153 |
assertEquals(2, result.size()); |
1154 |
for (Iterator<Future<String>> it = result.iterator(); it.hasNext();) |
1155 |
assertSame(TEST_STRING, it.next().get()); |
1156 |
} catch (ExecutionException success) { |
1157 |
} catch (CancellationException success) { |
1158 |
} catch(Exception ex) { |
1159 |
ex.printStackTrace(); |
1160 |
unexpectedException(); |
1161 |
} finally { |
1162 |
joinPool(e); |
1163 |
} |
1164 |
} |
1165 |
|
1166 |
} |