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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/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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|
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
10 |
import static java.util.concurrent.TimeUnit.SECONDS; |
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|
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import java.util.ArrayList; |
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import java.util.Collection; |
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import java.util.Collections; |
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import java.util.List; |
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import java.util.concurrent.ArrayBlockingQueue; |
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import java.util.concurrent.BlockingQueue; |
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import java.util.concurrent.Callable; |
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import java.util.concurrent.CancellationException; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.ExecutionException; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.Future; |
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import java.util.concurrent.FutureTask; |
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import java.util.concurrent.LinkedBlockingQueue; |
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import java.util.concurrent.RejectedExecutionHandler; |
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import java.util.concurrent.RunnableFuture; |
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import java.util.concurrent.SynchronousQueue; |
29 |
import java.util.concurrent.ThreadFactory; |
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import java.util.concurrent.ThreadLocalRandom; |
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import java.util.concurrent.ThreadPoolExecutor; |
32 |
import java.util.concurrent.TimeoutException; |
33 |
import java.util.concurrent.TimeUnit; |
34 |
import java.util.concurrent.atomic.AtomicInteger; |
35 |
import java.util.concurrent.locks.Condition; |
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import java.util.concurrent.locks.ReentrantLock; |
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|
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import junit.framework.Test; |
39 |
import junit.framework.TestSuite; |
40 |
|
41 |
public class ThreadPoolExecutorSubclassTest extends JSR166TestCase { |
42 |
public static void main(String[] args) { |
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main(suite(), args); |
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} |
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public static Test suite() { |
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return new TestSuite(ThreadPoolExecutorSubclassTest.class); |
47 |
} |
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|
49 |
static class CustomTask<V> implements RunnableFuture<V> { |
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final Callable<V> callable; |
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final ReentrantLock lock = new ReentrantLock(); |
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final Condition cond = lock.newCondition(); |
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boolean done; |
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boolean cancelled; |
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V result; |
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Thread thread; |
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Exception exception; |
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CustomTask(Callable<V> c) { |
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if (c == null) throw new NullPointerException(); |
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callable = c; |
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} |
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CustomTask(final Runnable r, final V res) { |
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if (r == null) throw new NullPointerException(); |
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callable = new Callable<V>() { |
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public V call() throws Exception { r.run(); return res; }}; |
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} |
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public boolean isDone() { |
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lock.lock(); try { return done; } finally { lock.unlock() ; } |
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} |
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public boolean isCancelled() { |
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lock.lock(); try { return cancelled; } finally { lock.unlock() ; } |
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} |
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public boolean cancel(boolean mayInterrupt) { |
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lock.lock(); |
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try { |
76 |
if (!done) { |
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cancelled = true; |
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done = true; |
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if (mayInterrupt && thread != null) |
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thread.interrupt(); |
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return true; |
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} |
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return false; |
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} |
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finally { lock.unlock() ; } |
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} |
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public void run() { |
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lock.lock(); |
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try { |
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if (done) |
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return; |
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thread = Thread.currentThread(); |
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} |
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finally { lock.unlock() ; } |
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V v = null; |
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Exception e = null; |
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try { |
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v = callable.call(); |
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} |
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catch (Exception ex) { |
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e = ex; |
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} |
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lock.lock(); |
104 |
try { |
105 |
if (!done) { |
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result = v; |
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exception = e; |
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done = true; |
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thread = null; |
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cond.signalAll(); |
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} |
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} |
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finally { lock.unlock(); } |
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} |
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public V get() throws InterruptedException, ExecutionException { |
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lock.lock(); |
117 |
try { |
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while (!done) |
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cond.await(); |
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if (cancelled) |
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throw new CancellationException(); |
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if (exception != null) |
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throw new ExecutionException(exception); |
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return result; |
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} |
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finally { lock.unlock(); } |
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} |
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public V get(long timeout, TimeUnit unit) |
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throws InterruptedException, ExecutionException, TimeoutException { |
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long nanos = unit.toNanos(timeout); |
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lock.lock(); |
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try { |
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while (!done) { |
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if (nanos <= 0L) |
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throw new TimeoutException(); |
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nanos = cond.awaitNanos(nanos); |
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} |
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if (cancelled) |
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throw new CancellationException(); |
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if (exception != null) |
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throw new ExecutionException(exception); |
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return result; |
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} |
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finally { lock.unlock(); } |
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} |
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} |
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|
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static class CustomTPE extends ThreadPoolExecutor { |
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protected <V> RunnableFuture<V> newTaskFor(Callable<V> c) { |
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return new CustomTask<V>(c); |
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} |
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protected <V> RunnableFuture<V> newTaskFor(Runnable r, V v) { |
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return new CustomTask<V>(r, v); |
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} |
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|
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CustomTPE(int corePoolSize, |
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int maximumPoolSize, |
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long keepAliveTime, |
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TimeUnit unit, |
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BlockingQueue<Runnable> workQueue) { |
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super(corePoolSize, maximumPoolSize, keepAliveTime, unit, |
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workQueue); |
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} |
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CustomTPE(int corePoolSize, |
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int maximumPoolSize, |
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long keepAliveTime, |
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TimeUnit unit, |
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BlockingQueue<Runnable> workQueue, |
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ThreadFactory threadFactory) { |
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super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, |
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threadFactory); |
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} |
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|
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CustomTPE(int corePoolSize, |
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int maximumPoolSize, |
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long keepAliveTime, |
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TimeUnit unit, |
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BlockingQueue<Runnable> workQueue, |
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RejectedExecutionHandler handler) { |
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super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, |
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handler); |
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} |
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CustomTPE(int corePoolSize, |
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int maximumPoolSize, |
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long keepAliveTime, |
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TimeUnit unit, |
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BlockingQueue<Runnable> workQueue, |
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ThreadFactory threadFactory, |
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RejectedExecutionHandler handler) { |
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super(corePoolSize, maximumPoolSize, keepAliveTime, unit, |
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workQueue, threadFactory, handler); |
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} |
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|
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final CountDownLatch beforeCalled = new CountDownLatch(1); |
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final CountDownLatch afterCalled = new CountDownLatch(1); |
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final CountDownLatch terminatedCalled = new CountDownLatch(1); |
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|
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public CustomTPE() { |
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super(1, 1, LONG_DELAY_MS, MILLISECONDS, new SynchronousQueue<Runnable>()); |
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} |
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protected void beforeExecute(Thread t, Runnable r) { |
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beforeCalled.countDown(); |
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} |
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protected void afterExecute(Runnable r, Throwable t) { |
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afterCalled.countDown(); |
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} |
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protected void terminated() { |
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terminatedCalled.countDown(); |
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} |
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|
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public boolean beforeCalled() { |
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return beforeCalled.getCount() == 0; |
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} |
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public boolean afterCalled() { |
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return afterCalled.getCount() == 0; |
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} |
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public boolean terminatedCalled() { |
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return terminatedCalled.getCount() == 0; |
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} |
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} |
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|
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static class FailingThreadFactory implements ThreadFactory { |
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int calls = 0; |
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public Thread newThread(Runnable r) { |
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if (++calls > 1) return null; |
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return new Thread(r); |
227 |
} |
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} |
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|
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/** |
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* execute successfully executes a runnable |
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*/ |
233 |
public void testExecute() throws InterruptedException { |
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final ThreadPoolExecutor p = |
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new CustomTPE(1, 1, |
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2 * LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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final CountDownLatch done = new CountDownLatch(1); |
240 |
final Runnable task = new CheckedRunnable() { |
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public void realRun() { done.countDown(); }}; |
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p.execute(task); |
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await(done); |
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} |
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} |
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|
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/** |
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* getActiveCount increases but doesn't overestimate, when a |
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* thread becomes active |
250 |
*/ |
251 |
public void testGetActiveCount() throws InterruptedException { |
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final CountDownLatch done = new CountDownLatch(1); |
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final ThreadPoolExecutor p = |
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new CustomTPE(2, 2, |
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LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
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try (PoolCleaner cleaner = cleaner(p, done)) { |
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final CountDownLatch threadStarted = new CountDownLatch(1); |
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assertEquals(0, p.getActiveCount()); |
260 |
p.execute(new CheckedRunnable() { |
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public void realRun() throws InterruptedException { |
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threadStarted.countDown(); |
263 |
assertEquals(1, p.getActiveCount()); |
264 |
await(done); |
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}}); |
266 |
await(threadStarted); |
267 |
assertEquals(1, p.getActiveCount()); |
268 |
} |
269 |
} |
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|
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/** |
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* prestartCoreThread starts a thread if under corePoolSize, else doesn't |
273 |
*/ |
274 |
public void testPrestartCoreThread() { |
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final ThreadPoolExecutor p = |
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new CustomTPE(2, 6, |
277 |
LONG_DELAY_MS, MILLISECONDS, |
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new ArrayBlockingQueue<Runnable>(10)); |
279 |
try (PoolCleaner cleaner = cleaner(p)) { |
280 |
assertEquals(0, p.getPoolSize()); |
281 |
assertTrue(p.prestartCoreThread()); |
282 |
assertEquals(1, p.getPoolSize()); |
283 |
assertTrue(p.prestartCoreThread()); |
284 |
assertEquals(2, p.getPoolSize()); |
285 |
assertFalse(p.prestartCoreThread()); |
286 |
assertEquals(2, p.getPoolSize()); |
287 |
p.setCorePoolSize(4); |
288 |
assertTrue(p.prestartCoreThread()); |
289 |
assertEquals(3, p.getPoolSize()); |
290 |
assertTrue(p.prestartCoreThread()); |
291 |
assertEquals(4, p.getPoolSize()); |
292 |
assertFalse(p.prestartCoreThread()); |
293 |
assertEquals(4, p.getPoolSize()); |
294 |
} |
295 |
} |
296 |
|
297 |
/** |
298 |
* prestartAllCoreThreads starts all corePoolSize threads |
299 |
*/ |
300 |
public void testPrestartAllCoreThreads() { |
301 |
final ThreadPoolExecutor p = |
302 |
new CustomTPE(2, 6, |
303 |
LONG_DELAY_MS, MILLISECONDS, |
304 |
new ArrayBlockingQueue<Runnable>(10)); |
305 |
try (PoolCleaner cleaner = cleaner(p)) { |
306 |
assertEquals(0, p.getPoolSize()); |
307 |
p.prestartAllCoreThreads(); |
308 |
assertEquals(2, p.getPoolSize()); |
309 |
p.prestartAllCoreThreads(); |
310 |
assertEquals(2, p.getPoolSize()); |
311 |
p.setCorePoolSize(4); |
312 |
p.prestartAllCoreThreads(); |
313 |
assertEquals(4, p.getPoolSize()); |
314 |
p.prestartAllCoreThreads(); |
315 |
assertEquals(4, p.getPoolSize()); |
316 |
} |
317 |
} |
318 |
|
319 |
/** |
320 |
* getCompletedTaskCount increases, but doesn't overestimate, |
321 |
* when tasks complete |
322 |
*/ |
323 |
public void testGetCompletedTaskCount() throws InterruptedException { |
324 |
final ThreadPoolExecutor p = |
325 |
new CustomTPE(2, 2, |
326 |
LONG_DELAY_MS, MILLISECONDS, |
327 |
new ArrayBlockingQueue<Runnable>(10)); |
328 |
try (PoolCleaner cleaner = cleaner(p)) { |
329 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
330 |
final CountDownLatch threadProceed = new CountDownLatch(1); |
331 |
final CountDownLatch threadDone = new CountDownLatch(1); |
332 |
assertEquals(0, p.getCompletedTaskCount()); |
333 |
p.execute(new CheckedRunnable() { |
334 |
public void realRun() throws InterruptedException { |
335 |
threadStarted.countDown(); |
336 |
assertEquals(0, p.getCompletedTaskCount()); |
337 |
await(threadProceed); |
338 |
threadDone.countDown(); |
339 |
}}); |
340 |
await(threadStarted); |
341 |
assertEquals(0, p.getCompletedTaskCount()); |
342 |
threadProceed.countDown(); |
343 |
await(threadDone); |
344 |
long startTime = System.nanoTime(); |
345 |
while (p.getCompletedTaskCount() != 1) { |
346 |
if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
347 |
fail("timed out"); |
348 |
Thread.yield(); |
349 |
} |
350 |
} |
351 |
} |
352 |
|
353 |
/** |
354 |
* getCorePoolSize returns size given in constructor if not otherwise set |
355 |
*/ |
356 |
public void testGetCorePoolSize() { |
357 |
final ThreadPoolExecutor p = |
358 |
new CustomTPE(1, 1, |
359 |
LONG_DELAY_MS, MILLISECONDS, |
360 |
new ArrayBlockingQueue<Runnable>(10)); |
361 |
try (PoolCleaner cleaner = cleaner(p)) { |
362 |
assertEquals(1, p.getCorePoolSize()); |
363 |
} |
364 |
} |
365 |
|
366 |
/** |
367 |
* getKeepAliveTime returns value given in constructor if not otherwise set |
368 |
*/ |
369 |
public void testGetKeepAliveTime() { |
370 |
final ThreadPoolExecutor p = |
371 |
new CustomTPE(2, 2, |
372 |
1000, MILLISECONDS, |
373 |
new ArrayBlockingQueue<Runnable>(10)); |
374 |
try (PoolCleaner cleaner = cleaner(p)) { |
375 |
assertEquals(1, p.getKeepAliveTime(SECONDS)); |
376 |
} |
377 |
} |
378 |
|
379 |
/** |
380 |
* getThreadFactory returns factory in constructor if not set |
381 |
*/ |
382 |
public void testGetThreadFactory() { |
383 |
final ThreadFactory threadFactory = new SimpleThreadFactory(); |
384 |
final ThreadPoolExecutor p = |
385 |
new CustomTPE(1, 2, |
386 |
LONG_DELAY_MS, MILLISECONDS, |
387 |
new ArrayBlockingQueue<Runnable>(10), |
388 |
threadFactory, |
389 |
new NoOpREHandler()); |
390 |
try (PoolCleaner cleaner = cleaner(p)) { |
391 |
assertSame(threadFactory, p.getThreadFactory()); |
392 |
} |
393 |
} |
394 |
|
395 |
/** |
396 |
* setThreadFactory sets the thread factory returned by getThreadFactory |
397 |
*/ |
398 |
public void testSetThreadFactory() { |
399 |
final ThreadPoolExecutor p = |
400 |
new CustomTPE(1, 2, |
401 |
LONG_DELAY_MS, MILLISECONDS, |
402 |
new ArrayBlockingQueue<Runnable>(10)); |
403 |
try (PoolCleaner cleaner = cleaner(p)) { |
404 |
ThreadFactory threadFactory = new SimpleThreadFactory(); |
405 |
p.setThreadFactory(threadFactory); |
406 |
assertSame(threadFactory, p.getThreadFactory()); |
407 |
} |
408 |
} |
409 |
|
410 |
/** |
411 |
* setThreadFactory(null) throws NPE |
412 |
*/ |
413 |
public void testSetThreadFactoryNull() { |
414 |
final ThreadPoolExecutor p = |
415 |
new CustomTPE(1, 2, |
416 |
LONG_DELAY_MS, MILLISECONDS, |
417 |
new ArrayBlockingQueue<Runnable>(10)); |
418 |
try (PoolCleaner cleaner = cleaner(p)) { |
419 |
try { |
420 |
p.setThreadFactory(null); |
421 |
shouldThrow(); |
422 |
} catch (NullPointerException success) {} |
423 |
} |
424 |
} |
425 |
|
426 |
/** |
427 |
* getRejectedExecutionHandler returns handler in constructor if not set |
428 |
*/ |
429 |
public void testGetRejectedExecutionHandler() { |
430 |
final RejectedExecutionHandler handler = new NoOpREHandler(); |
431 |
final ThreadPoolExecutor p = |
432 |
new CustomTPE(1, 2, |
433 |
LONG_DELAY_MS, MILLISECONDS, |
434 |
new ArrayBlockingQueue<Runnable>(10), |
435 |
handler); |
436 |
try (PoolCleaner cleaner = cleaner(p)) { |
437 |
assertSame(handler, p.getRejectedExecutionHandler()); |
438 |
} |
439 |
} |
440 |
|
441 |
/** |
442 |
* setRejectedExecutionHandler sets the handler returned by |
443 |
* getRejectedExecutionHandler |
444 |
*/ |
445 |
public void testSetRejectedExecutionHandler() { |
446 |
final ThreadPoolExecutor p = |
447 |
new CustomTPE(1, 2, |
448 |
LONG_DELAY_MS, MILLISECONDS, |
449 |
new ArrayBlockingQueue<Runnable>(10)); |
450 |
try (PoolCleaner cleaner = cleaner(p)) { |
451 |
RejectedExecutionHandler handler = new NoOpREHandler(); |
452 |
p.setRejectedExecutionHandler(handler); |
453 |
assertSame(handler, p.getRejectedExecutionHandler()); |
454 |
} |
455 |
} |
456 |
|
457 |
/** |
458 |
* setRejectedExecutionHandler(null) throws NPE |
459 |
*/ |
460 |
public void testSetRejectedExecutionHandlerNull() { |
461 |
final ThreadPoolExecutor p = |
462 |
new CustomTPE(1, 2, |
463 |
LONG_DELAY_MS, MILLISECONDS, |
464 |
new ArrayBlockingQueue<Runnable>(10)); |
465 |
try (PoolCleaner cleaner = cleaner(p)) { |
466 |
try { |
467 |
p.setRejectedExecutionHandler(null); |
468 |
shouldThrow(); |
469 |
} catch (NullPointerException success) {} |
470 |
} |
471 |
} |
472 |
|
473 |
/** |
474 |
* getLargestPoolSize increases, but doesn't overestimate, when |
475 |
* multiple threads active |
476 |
*/ |
477 |
public void testGetLargestPoolSize() throws InterruptedException { |
478 |
final int THREADS = 3; |
479 |
final CountDownLatch done = new CountDownLatch(1); |
480 |
final ThreadPoolExecutor p = |
481 |
new CustomTPE(THREADS, THREADS, |
482 |
LONG_DELAY_MS, MILLISECONDS, |
483 |
new ArrayBlockingQueue<Runnable>(10)); |
484 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
485 |
assertEquals(0, p.getLargestPoolSize()); |
486 |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
487 |
for (int i = 0; i < THREADS; i++) |
488 |
p.execute(new CheckedRunnable() { |
489 |
public void realRun() throws InterruptedException { |
490 |
threadsStarted.countDown(); |
491 |
await(done); |
492 |
assertEquals(THREADS, p.getLargestPoolSize()); |
493 |
}}); |
494 |
await(threadsStarted); |
495 |
assertEquals(THREADS, p.getLargestPoolSize()); |
496 |
} |
497 |
assertEquals(THREADS, p.getLargestPoolSize()); |
498 |
} |
499 |
|
500 |
/** |
501 |
* getMaximumPoolSize returns value given in constructor if not |
502 |
* otherwise set |
503 |
*/ |
504 |
public void testGetMaximumPoolSize() { |
505 |
final ThreadPoolExecutor p = |
506 |
new CustomTPE(2, 3, |
507 |
LONG_DELAY_MS, MILLISECONDS, |
508 |
new ArrayBlockingQueue<Runnable>(10)); |
509 |
try (PoolCleaner cleaner = cleaner(p)) { |
510 |
assertEquals(3, p.getMaximumPoolSize()); |
511 |
p.setMaximumPoolSize(5); |
512 |
assertEquals(5, p.getMaximumPoolSize()); |
513 |
p.setMaximumPoolSize(4); |
514 |
assertEquals(4, p.getMaximumPoolSize()); |
515 |
} |
516 |
} |
517 |
|
518 |
/** |
519 |
* getPoolSize increases, but doesn't overestimate, when threads |
520 |
* become active |
521 |
*/ |
522 |
public void testGetPoolSize() throws InterruptedException { |
523 |
final CountDownLatch done = new CountDownLatch(1); |
524 |
final ThreadPoolExecutor p = |
525 |
new CustomTPE(1, 1, |
526 |
LONG_DELAY_MS, MILLISECONDS, |
527 |
new ArrayBlockingQueue<Runnable>(10)); |
528 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
529 |
assertEquals(0, p.getPoolSize()); |
530 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
531 |
p.execute(new CheckedRunnable() { |
532 |
public void realRun() throws InterruptedException { |
533 |
threadStarted.countDown(); |
534 |
assertEquals(1, p.getPoolSize()); |
535 |
await(done); |
536 |
}}); |
537 |
await(threadStarted); |
538 |
assertEquals(1, p.getPoolSize()); |
539 |
} |
540 |
} |
541 |
|
542 |
/** |
543 |
* getTaskCount increases, but doesn't overestimate, when tasks submitted |
544 |
*/ |
545 |
public void testGetTaskCount() throws InterruptedException { |
546 |
final int TASKS = 3; |
547 |
final CountDownLatch done = new CountDownLatch(1); |
548 |
final ThreadPoolExecutor p = |
549 |
new CustomTPE(1, 1, |
550 |
LONG_DELAY_MS, MILLISECONDS, |
551 |
new ArrayBlockingQueue<Runnable>(10)); |
552 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
553 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
554 |
assertEquals(0, p.getTaskCount()); |
555 |
assertEquals(0, p.getCompletedTaskCount()); |
556 |
p.execute(new CheckedRunnable() { |
557 |
public void realRun() throws InterruptedException { |
558 |
threadStarted.countDown(); |
559 |
await(done); |
560 |
}}); |
561 |
await(threadStarted); |
562 |
assertEquals(1, p.getTaskCount()); |
563 |
assertEquals(0, p.getCompletedTaskCount()); |
564 |
for (int i = 0; i < TASKS; i++) { |
565 |
assertEquals(1 + i, p.getTaskCount()); |
566 |
p.execute(new CheckedRunnable() { |
567 |
public void realRun() throws InterruptedException { |
568 |
threadStarted.countDown(); |
569 |
assertEquals(1 + TASKS, p.getTaskCount()); |
570 |
await(done); |
571 |
}}); |
572 |
} |
573 |
assertEquals(1 + TASKS, p.getTaskCount()); |
574 |
assertEquals(0, p.getCompletedTaskCount()); |
575 |
} |
576 |
assertEquals(1 + TASKS, p.getTaskCount()); |
577 |
assertEquals(1 + TASKS, p.getCompletedTaskCount()); |
578 |
} |
579 |
|
580 |
/** |
581 |
* isShutdown is false before shutdown, true after |
582 |
*/ |
583 |
public void testIsShutdown() { |
584 |
final ThreadPoolExecutor p = |
585 |
new CustomTPE(1, 1, |
586 |
LONG_DELAY_MS, MILLISECONDS, |
587 |
new ArrayBlockingQueue<Runnable>(10)); |
588 |
try (PoolCleaner cleaner = cleaner(p)) { |
589 |
assertFalse(p.isShutdown()); |
590 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
591 |
assertTrue(p.isShutdown()); |
592 |
} |
593 |
} |
594 |
|
595 |
/** |
596 |
* isTerminated is false before termination, true after |
597 |
*/ |
598 |
public void testIsTerminated() throws InterruptedException { |
599 |
final ThreadPoolExecutor p = |
600 |
new CustomTPE(1, 1, |
601 |
LONG_DELAY_MS, MILLISECONDS, |
602 |
new ArrayBlockingQueue<Runnable>(10)); |
603 |
try (PoolCleaner cleaner = cleaner(p)) { |
604 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
605 |
final CountDownLatch done = new CountDownLatch(1); |
606 |
assertFalse(p.isTerminating()); |
607 |
p.execute(new CheckedRunnable() { |
608 |
public void realRun() throws InterruptedException { |
609 |
assertFalse(p.isTerminating()); |
610 |
threadStarted.countDown(); |
611 |
await(done); |
612 |
}}); |
613 |
await(threadStarted); |
614 |
assertFalse(p.isTerminating()); |
615 |
done.countDown(); |
616 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
617 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
618 |
assertTrue(p.isTerminated()); |
619 |
assertFalse(p.isTerminating()); |
620 |
} |
621 |
} |
622 |
|
623 |
/** |
624 |
* isTerminating is not true when running or when terminated |
625 |
*/ |
626 |
public void testIsTerminating() throws InterruptedException { |
627 |
final ThreadPoolExecutor p = |
628 |
new CustomTPE(1, 1, |
629 |
LONG_DELAY_MS, MILLISECONDS, |
630 |
new ArrayBlockingQueue<Runnable>(10)); |
631 |
try (PoolCleaner cleaner = cleaner(p)) { |
632 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
633 |
final CountDownLatch done = new CountDownLatch(1); |
634 |
assertFalse(p.isTerminating()); |
635 |
p.execute(new CheckedRunnable() { |
636 |
public void realRun() throws InterruptedException { |
637 |
assertFalse(p.isTerminating()); |
638 |
threadStarted.countDown(); |
639 |
await(done); |
640 |
}}); |
641 |
await(threadStarted); |
642 |
assertFalse(p.isTerminating()); |
643 |
done.countDown(); |
644 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
645 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
646 |
assertTrue(p.isTerminated()); |
647 |
assertFalse(p.isTerminating()); |
648 |
} |
649 |
} |
650 |
|
651 |
/** |
652 |
* getQueue returns the work queue, which contains queued tasks |
653 |
*/ |
654 |
public void testGetQueue() throws InterruptedException { |
655 |
final CountDownLatch done = new CountDownLatch(1); |
656 |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<>(10); |
657 |
final ThreadPoolExecutor p = |
658 |
new CustomTPE(1, 1, |
659 |
LONG_DELAY_MS, MILLISECONDS, |
660 |
q); |
661 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
662 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
663 |
FutureTask[] tasks = new FutureTask[5]; |
664 |
for (int i = 0; i < tasks.length; i++) { |
665 |
Callable<Boolean> task = new CheckedCallable<Boolean>() { |
666 |
public Boolean realCall() throws InterruptedException { |
667 |
threadStarted.countDown(); |
668 |
assertSame(q, p.getQueue()); |
669 |
await(done); |
670 |
return Boolean.TRUE; |
671 |
}}; |
672 |
tasks[i] = new FutureTask(task); |
673 |
p.execute(tasks[i]); |
674 |
} |
675 |
await(threadStarted); |
676 |
assertSame(q, p.getQueue()); |
677 |
assertFalse(q.contains(tasks[0])); |
678 |
assertTrue(q.contains(tasks[tasks.length - 1])); |
679 |
assertEquals(tasks.length - 1, q.size()); |
680 |
} |
681 |
} |
682 |
|
683 |
/** |
684 |
* remove(task) removes queued task, and fails to remove active task |
685 |
*/ |
686 |
public void testRemove() throws InterruptedException { |
687 |
final CountDownLatch done = new CountDownLatch(1); |
688 |
BlockingQueue<Runnable> q = new ArrayBlockingQueue<>(10); |
689 |
final ThreadPoolExecutor p = |
690 |
new CustomTPE(1, 1, |
691 |
LONG_DELAY_MS, MILLISECONDS, |
692 |
q); |
693 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
694 |
Runnable[] tasks = new Runnable[6]; |
695 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
696 |
for (int i = 0; i < tasks.length; i++) { |
697 |
tasks[i] = new CheckedRunnable() { |
698 |
public void realRun() throws InterruptedException { |
699 |
threadStarted.countDown(); |
700 |
await(done); |
701 |
}}; |
702 |
p.execute(tasks[i]); |
703 |
} |
704 |
await(threadStarted); |
705 |
assertFalse(p.remove(tasks[0])); |
706 |
assertTrue(q.contains(tasks[4])); |
707 |
assertTrue(q.contains(tasks[3])); |
708 |
assertTrue(p.remove(tasks[4])); |
709 |
assertFalse(p.remove(tasks[4])); |
710 |
assertFalse(q.contains(tasks[4])); |
711 |
assertTrue(q.contains(tasks[3])); |
712 |
assertTrue(p.remove(tasks[3])); |
713 |
assertFalse(q.contains(tasks[3])); |
714 |
} |
715 |
} |
716 |
|
717 |
/** |
718 |
* purge removes cancelled tasks from the queue |
719 |
*/ |
720 |
public void testPurge() throws InterruptedException { |
721 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
722 |
final CountDownLatch done = new CountDownLatch(1); |
723 |
final BlockingQueue<Runnable> q = new ArrayBlockingQueue<>(10); |
724 |
final ThreadPoolExecutor p = |
725 |
new CustomTPE(1, 1, |
726 |
LONG_DELAY_MS, MILLISECONDS, |
727 |
q); |
728 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
729 |
FutureTask[] tasks = new FutureTask[5]; |
730 |
for (int i = 0; i < tasks.length; i++) { |
731 |
Callable<Boolean> task = new CheckedCallable<Boolean>() { |
732 |
public Boolean realCall() throws InterruptedException { |
733 |
threadStarted.countDown(); |
734 |
await(done); |
735 |
return Boolean.TRUE; |
736 |
}}; |
737 |
tasks[i] = new FutureTask(task); |
738 |
p.execute(tasks[i]); |
739 |
} |
740 |
await(threadStarted); |
741 |
assertEquals(tasks.length, p.getTaskCount()); |
742 |
assertEquals(tasks.length - 1, q.size()); |
743 |
assertEquals(1L, p.getActiveCount()); |
744 |
assertEquals(0L, p.getCompletedTaskCount()); |
745 |
tasks[4].cancel(true); |
746 |
tasks[3].cancel(false); |
747 |
p.purge(); |
748 |
assertEquals(tasks.length - 3, q.size()); |
749 |
assertEquals(tasks.length - 2, p.getTaskCount()); |
750 |
p.purge(); // Nothing to do |
751 |
assertEquals(tasks.length - 3, q.size()); |
752 |
assertEquals(tasks.length - 2, p.getTaskCount()); |
753 |
} |
754 |
} |
755 |
|
756 |
/** |
757 |
* shutdownNow returns a list containing tasks that were not run, |
758 |
* and those tasks are drained from the queue |
759 |
*/ |
760 |
public void testShutdownNow() throws InterruptedException { |
761 |
final int poolSize = 2; |
762 |
final int count = 5; |
763 |
final AtomicInteger ran = new AtomicInteger(0); |
764 |
final ThreadPoolExecutor p = |
765 |
new CustomTPE(poolSize, poolSize, |
766 |
LONG_DELAY_MS, MILLISECONDS, |
767 |
new ArrayBlockingQueue<Runnable>(10)); |
768 |
final CountDownLatch threadsStarted = new CountDownLatch(poolSize); |
769 |
Runnable waiter = new CheckedRunnable() { public void realRun() { |
770 |
threadsStarted.countDown(); |
771 |
try { |
772 |
MILLISECONDS.sleep(2 * LONG_DELAY_MS); |
773 |
} catch (InterruptedException success) {} |
774 |
ran.getAndIncrement(); |
775 |
}}; |
776 |
for (int i = 0; i < count; i++) |
777 |
p.execute(waiter); |
778 |
await(threadsStarted); |
779 |
assertEquals(poolSize, p.getActiveCount()); |
780 |
assertEquals(0, p.getCompletedTaskCount()); |
781 |
final List<Runnable> queuedTasks; |
782 |
try { |
783 |
queuedTasks = p.shutdownNow(); |
784 |
} catch (SecurityException ok) { |
785 |
return; // Allowed in case test doesn't have privs |
786 |
} |
787 |
assertTrue(p.isShutdown()); |
788 |
assertTrue(p.getQueue().isEmpty()); |
789 |
assertEquals(count - poolSize, queuedTasks.size()); |
790 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
791 |
assertTrue(p.isTerminated()); |
792 |
assertEquals(poolSize, ran.get()); |
793 |
assertEquals(poolSize, p.getCompletedTaskCount()); |
794 |
} |
795 |
|
796 |
// Exception Tests |
797 |
|
798 |
/** |
799 |
* Constructor throws if corePoolSize argument is less than zero |
800 |
*/ |
801 |
public void testConstructor1() { |
802 |
try { |
803 |
new CustomTPE(-1, 1, 1L, SECONDS, |
804 |
new ArrayBlockingQueue<Runnable>(10)); |
805 |
shouldThrow(); |
806 |
} catch (IllegalArgumentException success) {} |
807 |
} |
808 |
|
809 |
/** |
810 |
* Constructor throws if maximumPoolSize is less than zero |
811 |
*/ |
812 |
public void testConstructor2() { |
813 |
try { |
814 |
new CustomTPE(1, -1, 1L, SECONDS, |
815 |
new ArrayBlockingQueue<Runnable>(10)); |
816 |
shouldThrow(); |
817 |
} catch (IllegalArgumentException success) {} |
818 |
} |
819 |
|
820 |
/** |
821 |
* Constructor throws if maximumPoolSize is equal to zero |
822 |
*/ |
823 |
public void testConstructor3() { |
824 |
try { |
825 |
new CustomTPE(1, 0, 1L, SECONDS, |
826 |
new ArrayBlockingQueue<Runnable>(10)); |
827 |
shouldThrow(); |
828 |
} catch (IllegalArgumentException success) {} |
829 |
} |
830 |
|
831 |
/** |
832 |
* Constructor throws if keepAliveTime is less than zero |
833 |
*/ |
834 |
public void testConstructor4() { |
835 |
try { |
836 |
new CustomTPE(1, 2, -1L, SECONDS, |
837 |
new ArrayBlockingQueue<Runnable>(10)); |
838 |
shouldThrow(); |
839 |
} catch (IllegalArgumentException success) {} |
840 |
} |
841 |
|
842 |
/** |
843 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
844 |
*/ |
845 |
public void testConstructor5() { |
846 |
try { |
847 |
new CustomTPE(2, 1, 1L, SECONDS, |
848 |
new ArrayBlockingQueue<Runnable>(10)); |
849 |
shouldThrow(); |
850 |
} catch (IllegalArgumentException success) {} |
851 |
} |
852 |
|
853 |
/** |
854 |
* Constructor throws if workQueue is set to null |
855 |
*/ |
856 |
public void testConstructorNullPointerException() { |
857 |
try { |
858 |
new CustomTPE(1, 2, 1L, SECONDS, null); |
859 |
shouldThrow(); |
860 |
} catch (NullPointerException success) {} |
861 |
} |
862 |
|
863 |
/** |
864 |
* Constructor throws if corePoolSize argument is less than zero |
865 |
*/ |
866 |
public void testConstructor6() { |
867 |
try { |
868 |
new CustomTPE(-1, 1, 1L, SECONDS, |
869 |
new ArrayBlockingQueue<Runnable>(10), |
870 |
new SimpleThreadFactory()); |
871 |
shouldThrow(); |
872 |
} catch (IllegalArgumentException success) {} |
873 |
} |
874 |
|
875 |
/** |
876 |
* Constructor throws if maximumPoolSize is less than zero |
877 |
*/ |
878 |
public void testConstructor7() { |
879 |
try { |
880 |
new CustomTPE(1,-1, 1L, SECONDS, |
881 |
new ArrayBlockingQueue<Runnable>(10), |
882 |
new SimpleThreadFactory()); |
883 |
shouldThrow(); |
884 |
} catch (IllegalArgumentException success) {} |
885 |
} |
886 |
|
887 |
/** |
888 |
* Constructor throws if maximumPoolSize is equal to zero |
889 |
*/ |
890 |
public void testConstructor8() { |
891 |
try { |
892 |
new CustomTPE(1, 0, 1L, SECONDS, |
893 |
new ArrayBlockingQueue<Runnable>(10), |
894 |
new SimpleThreadFactory()); |
895 |
shouldThrow(); |
896 |
} catch (IllegalArgumentException success) {} |
897 |
} |
898 |
|
899 |
/** |
900 |
* Constructor throws if keepAliveTime is less than zero |
901 |
*/ |
902 |
public void testConstructor9() { |
903 |
try { |
904 |
new CustomTPE(1, 2, -1L, SECONDS, |
905 |
new ArrayBlockingQueue<Runnable>(10), |
906 |
new SimpleThreadFactory()); |
907 |
shouldThrow(); |
908 |
} catch (IllegalArgumentException success) {} |
909 |
} |
910 |
|
911 |
/** |
912 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
913 |
*/ |
914 |
public void testConstructor10() { |
915 |
try { |
916 |
new CustomTPE(2, 1, 1L, SECONDS, |
917 |
new ArrayBlockingQueue<Runnable>(10), |
918 |
new SimpleThreadFactory()); |
919 |
shouldThrow(); |
920 |
} catch (IllegalArgumentException success) {} |
921 |
} |
922 |
|
923 |
/** |
924 |
* Constructor throws if workQueue is set to null |
925 |
*/ |
926 |
public void testConstructorNullPointerException2() { |
927 |
try { |
928 |
new CustomTPE(1, 2, 1L, SECONDS, null, new SimpleThreadFactory()); |
929 |
shouldThrow(); |
930 |
} catch (NullPointerException success) {} |
931 |
} |
932 |
|
933 |
/** |
934 |
* Constructor throws if threadFactory is set to null |
935 |
*/ |
936 |
public void testConstructorNullPointerException3() { |
937 |
try { |
938 |
new CustomTPE(1, 2, 1L, SECONDS, |
939 |
new ArrayBlockingQueue<Runnable>(10), |
940 |
(ThreadFactory) null); |
941 |
shouldThrow(); |
942 |
} catch (NullPointerException success) {} |
943 |
} |
944 |
|
945 |
/** |
946 |
* Constructor throws if corePoolSize argument is less than zero |
947 |
*/ |
948 |
public void testConstructor11() { |
949 |
try { |
950 |
new CustomTPE(-1, 1, 1L, SECONDS, |
951 |
new ArrayBlockingQueue<Runnable>(10), |
952 |
new NoOpREHandler()); |
953 |
shouldThrow(); |
954 |
} catch (IllegalArgumentException success) {} |
955 |
} |
956 |
|
957 |
/** |
958 |
* Constructor throws if maximumPoolSize is less than zero |
959 |
*/ |
960 |
public void testConstructor12() { |
961 |
try { |
962 |
new CustomTPE(1, -1, 1L, SECONDS, |
963 |
new ArrayBlockingQueue<Runnable>(10), |
964 |
new NoOpREHandler()); |
965 |
shouldThrow(); |
966 |
} catch (IllegalArgumentException success) {} |
967 |
} |
968 |
|
969 |
/** |
970 |
* Constructor throws if maximumPoolSize is equal to zero |
971 |
*/ |
972 |
public void testConstructor13() { |
973 |
try { |
974 |
new CustomTPE(1, 0, 1L, SECONDS, |
975 |
new ArrayBlockingQueue<Runnable>(10), |
976 |
new NoOpREHandler()); |
977 |
shouldThrow(); |
978 |
} catch (IllegalArgumentException success) {} |
979 |
} |
980 |
|
981 |
/** |
982 |
* Constructor throws if keepAliveTime is less than zero |
983 |
*/ |
984 |
public void testConstructor14() { |
985 |
try { |
986 |
new CustomTPE(1, 2, -1L, SECONDS, |
987 |
new ArrayBlockingQueue<Runnable>(10), |
988 |
new NoOpREHandler()); |
989 |
shouldThrow(); |
990 |
} catch (IllegalArgumentException success) {} |
991 |
} |
992 |
|
993 |
/** |
994 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
995 |
*/ |
996 |
public void testConstructor15() { |
997 |
try { |
998 |
new CustomTPE(2, 1, 1L, SECONDS, |
999 |
new ArrayBlockingQueue<Runnable>(10), |
1000 |
new NoOpREHandler()); |
1001 |
shouldThrow(); |
1002 |
} catch (IllegalArgumentException success) {} |
1003 |
} |
1004 |
|
1005 |
/** |
1006 |
* Constructor throws if workQueue is set to null |
1007 |
*/ |
1008 |
public void testConstructorNullPointerException4() { |
1009 |
try { |
1010 |
new CustomTPE(1, 2, 1L, SECONDS, |
1011 |
null, |
1012 |
new NoOpREHandler()); |
1013 |
shouldThrow(); |
1014 |
} catch (NullPointerException success) {} |
1015 |
} |
1016 |
|
1017 |
/** |
1018 |
* Constructor throws if handler is set to null |
1019 |
*/ |
1020 |
public void testConstructorNullPointerException5() { |
1021 |
try { |
1022 |
new CustomTPE(1, 2, 1L, SECONDS, |
1023 |
new ArrayBlockingQueue<Runnable>(10), |
1024 |
(RejectedExecutionHandler) null); |
1025 |
shouldThrow(); |
1026 |
} catch (NullPointerException success) {} |
1027 |
} |
1028 |
|
1029 |
/** |
1030 |
* Constructor throws if corePoolSize argument is less than zero |
1031 |
*/ |
1032 |
public void testConstructor16() { |
1033 |
try { |
1034 |
new CustomTPE(-1, 1, 1L, SECONDS, |
1035 |
new ArrayBlockingQueue<Runnable>(10), |
1036 |
new SimpleThreadFactory(), |
1037 |
new NoOpREHandler()); |
1038 |
shouldThrow(); |
1039 |
} catch (IllegalArgumentException success) {} |
1040 |
} |
1041 |
|
1042 |
/** |
1043 |
* Constructor throws if maximumPoolSize is less than zero |
1044 |
*/ |
1045 |
public void testConstructor17() { |
1046 |
try { |
1047 |
new CustomTPE(1, -1, 1L, SECONDS, |
1048 |
new ArrayBlockingQueue<Runnable>(10), |
1049 |
new SimpleThreadFactory(), |
1050 |
new NoOpREHandler()); |
1051 |
shouldThrow(); |
1052 |
} catch (IllegalArgumentException success) {} |
1053 |
} |
1054 |
|
1055 |
/** |
1056 |
* Constructor throws if maximumPoolSize is equal to zero |
1057 |
*/ |
1058 |
public void testConstructor18() { |
1059 |
try { |
1060 |
new CustomTPE(1, 0, 1L, SECONDS, |
1061 |
new ArrayBlockingQueue<Runnable>(10), |
1062 |
new SimpleThreadFactory(), |
1063 |
new NoOpREHandler()); |
1064 |
shouldThrow(); |
1065 |
} catch (IllegalArgumentException success) {} |
1066 |
} |
1067 |
|
1068 |
/** |
1069 |
* Constructor throws if keepAliveTime is less than zero |
1070 |
*/ |
1071 |
public void testConstructor19() { |
1072 |
try { |
1073 |
new CustomTPE(1, 2, -1L, SECONDS, |
1074 |
new ArrayBlockingQueue<Runnable>(10), |
1075 |
new SimpleThreadFactory(), |
1076 |
new NoOpREHandler()); |
1077 |
shouldThrow(); |
1078 |
} catch (IllegalArgumentException success) {} |
1079 |
} |
1080 |
|
1081 |
/** |
1082 |
* Constructor throws if corePoolSize is greater than the maximumPoolSize |
1083 |
*/ |
1084 |
public void testConstructor20() { |
1085 |
try { |
1086 |
new CustomTPE(2, 1, 1L, SECONDS, |
1087 |
new ArrayBlockingQueue<Runnable>(10), |
1088 |
new SimpleThreadFactory(), |
1089 |
new NoOpREHandler()); |
1090 |
shouldThrow(); |
1091 |
} catch (IllegalArgumentException success) {} |
1092 |
} |
1093 |
|
1094 |
/** |
1095 |
* Constructor throws if workQueue is null |
1096 |
*/ |
1097 |
public void testConstructorNullPointerException6() { |
1098 |
try { |
1099 |
new CustomTPE(1, 2, 1L, SECONDS, |
1100 |
null, |
1101 |
new SimpleThreadFactory(), |
1102 |
new NoOpREHandler()); |
1103 |
shouldThrow(); |
1104 |
} catch (NullPointerException success) {} |
1105 |
} |
1106 |
|
1107 |
/** |
1108 |
* Constructor throws if handler is null |
1109 |
*/ |
1110 |
public void testConstructorNullPointerException7() { |
1111 |
try { |
1112 |
new CustomTPE(1, 2, 1L, SECONDS, |
1113 |
new ArrayBlockingQueue<Runnable>(10), |
1114 |
new SimpleThreadFactory(), |
1115 |
(RejectedExecutionHandler) null); |
1116 |
shouldThrow(); |
1117 |
} catch (NullPointerException success) {} |
1118 |
} |
1119 |
|
1120 |
/** |
1121 |
* Constructor throws if ThreadFactory is null |
1122 |
*/ |
1123 |
public void testConstructorNullPointerException8() { |
1124 |
try { |
1125 |
new CustomTPE(1, 2, 1L, SECONDS, |
1126 |
new ArrayBlockingQueue<Runnable>(10), |
1127 |
(ThreadFactory) null, |
1128 |
new NoOpREHandler()); |
1129 |
shouldThrow(); |
1130 |
} catch (NullPointerException success) {} |
1131 |
} |
1132 |
|
1133 |
/** |
1134 |
* Submitted tasks are rejected when saturated or shutdown |
1135 |
*/ |
1136 |
public void testSubmittedTasksRejectedWhenSaturatedOrShutdown() throws InterruptedException { |
1137 |
final ThreadPoolExecutor p = |
1138 |
new CustomTPE(1, 1, |
1139 |
LONG_DELAY_MS, MILLISECONDS, |
1140 |
new ArrayBlockingQueue<Runnable>(1)); |
1141 |
final int saturatedSize = saturatedSize(p); |
1142 |
final ThreadLocalRandom rnd = ThreadLocalRandom.current(); |
1143 |
final CountDownLatch threadsStarted = new CountDownLatch(p.getMaximumPoolSize()); |
1144 |
final CountDownLatch done = new CountDownLatch(1); |
1145 |
final Runnable r = () -> { |
1146 |
threadsStarted.countDown(); |
1147 |
for (;;) { |
1148 |
try { |
1149 |
done.await(); |
1150 |
return; |
1151 |
} catch (InterruptedException shutdownNowDeliberatelyIgnored) {} |
1152 |
}}; |
1153 |
final Callable<Boolean> c = () -> { |
1154 |
threadsStarted.countDown(); |
1155 |
for (;;) { |
1156 |
try { |
1157 |
done.await(); |
1158 |
return Boolean.TRUE; |
1159 |
} catch (InterruptedException shutdownNowDeliberatelyIgnored) {} |
1160 |
}}; |
1161 |
final boolean shutdownNow = rnd.nextBoolean(); |
1162 |
|
1163 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1164 |
// saturate |
1165 |
for (int i = saturatedSize; i--> 0; ) { |
1166 |
switch (rnd.nextInt(4)) { |
1167 |
case 0: p.execute(r); break; |
1168 |
case 1: assertFalse(p.submit(r).isDone()); break; |
1169 |
case 2: assertFalse(p.submit(r, Boolean.TRUE).isDone()); break; |
1170 |
case 3: assertFalse(p.submit(c).isDone()); break; |
1171 |
} |
1172 |
} |
1173 |
|
1174 |
await(threadsStarted); |
1175 |
assertTaskSubmissionsAreRejected(p); |
1176 |
|
1177 |
if (shutdownNow) |
1178 |
p.shutdownNow(); |
1179 |
else |
1180 |
p.shutdown(); |
1181 |
// Pool is shutdown, but not yet terminated |
1182 |
assertTaskSubmissionsAreRejected(p); |
1183 |
assertFalse(p.isTerminated()); |
1184 |
|
1185 |
done.countDown(); // release blocking tasks |
1186 |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
1187 |
|
1188 |
assertTaskSubmissionsAreRejected(p); |
1189 |
} |
1190 |
assertEquals(saturatedSize(p) |
1191 |
- (shutdownNow ? p.getQueue().remainingCapacity() : 0), |
1192 |
p.getCompletedTaskCount()); |
1193 |
} |
1194 |
|
1195 |
/** |
1196 |
* executor using DiscardOldestPolicy drops oldest task if saturated. |
1197 |
*/ |
1198 |
public void testSaturatedExecute_DiscardOldestPolicy() { |
1199 |
final CountDownLatch done = new CountDownLatch(1); |
1200 |
LatchAwaiter r1 = awaiter(done); |
1201 |
LatchAwaiter r2 = awaiter(done); |
1202 |
LatchAwaiter r3 = awaiter(done); |
1203 |
final ThreadPoolExecutor p = |
1204 |
new CustomTPE(1, 1, |
1205 |
LONG_DELAY_MS, MILLISECONDS, |
1206 |
new ArrayBlockingQueue<Runnable>(1), |
1207 |
new ThreadPoolExecutor.DiscardOldestPolicy()); |
1208 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1209 |
assertEquals(LatchAwaiter.NEW, r1.state); |
1210 |
assertEquals(LatchAwaiter.NEW, r2.state); |
1211 |
assertEquals(LatchAwaiter.NEW, r3.state); |
1212 |
p.execute(r1); |
1213 |
p.execute(r2); |
1214 |
assertTrue(p.getQueue().contains(r2)); |
1215 |
p.execute(r3); |
1216 |
assertFalse(p.getQueue().contains(r2)); |
1217 |
assertTrue(p.getQueue().contains(r3)); |
1218 |
} |
1219 |
assertEquals(LatchAwaiter.DONE, r1.state); |
1220 |
assertEquals(LatchAwaiter.NEW, r2.state); |
1221 |
assertEquals(LatchAwaiter.DONE, r3.state); |
1222 |
} |
1223 |
|
1224 |
/** |
1225 |
* execute using DiscardOldestPolicy drops task on shutdown |
1226 |
*/ |
1227 |
public void testDiscardOldestOnShutdown() { |
1228 |
final ThreadPoolExecutor p = |
1229 |
new CustomTPE(1, 1, |
1230 |
LONG_DELAY_MS, MILLISECONDS, |
1231 |
new ArrayBlockingQueue<Runnable>(1), |
1232 |
new ThreadPoolExecutor.DiscardOldestPolicy()); |
1233 |
|
1234 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1235 |
try (PoolCleaner cleaner = cleaner(p)) { |
1236 |
TrackedNoOpRunnable r = new TrackedNoOpRunnable(); |
1237 |
p.execute(r); |
1238 |
assertFalse(r.done); |
1239 |
} |
1240 |
} |
1241 |
|
1242 |
/** |
1243 |
* Submitting null tasks throws NullPointerException |
1244 |
*/ |
1245 |
public void testNullTaskSubmission() { |
1246 |
final ThreadPoolExecutor p = |
1247 |
new CustomTPE(1, 2, |
1248 |
1L, SECONDS, |
1249 |
new ArrayBlockingQueue<Runnable>(10)); |
1250 |
try (PoolCleaner cleaner = cleaner(p)) { |
1251 |
assertNullTaskSubmissionThrowsNullPointerException(p); |
1252 |
} |
1253 |
} |
1254 |
|
1255 |
/** |
1256 |
* setCorePoolSize of negative value throws IllegalArgumentException |
1257 |
*/ |
1258 |
public void testCorePoolSizeIllegalArgumentException() { |
1259 |
final ThreadPoolExecutor p = |
1260 |
new CustomTPE(1, 2, |
1261 |
LONG_DELAY_MS, MILLISECONDS, |
1262 |
new ArrayBlockingQueue<Runnable>(10)); |
1263 |
try (PoolCleaner cleaner = cleaner(p)) { |
1264 |
try { |
1265 |
p.setCorePoolSize(-1); |
1266 |
shouldThrow(); |
1267 |
} catch (IllegalArgumentException success) {} |
1268 |
} |
1269 |
} |
1270 |
|
1271 |
/** |
1272 |
* setMaximumPoolSize(int) throws IllegalArgumentException |
1273 |
* if given a value less the core pool size |
1274 |
*/ |
1275 |
public void testMaximumPoolSizeIllegalArgumentException() { |
1276 |
final ThreadPoolExecutor p = |
1277 |
new CustomTPE(2, 3, |
1278 |
LONG_DELAY_MS, MILLISECONDS, |
1279 |
new ArrayBlockingQueue<Runnable>(10)); |
1280 |
try (PoolCleaner cleaner = cleaner(p)) { |
1281 |
try { |
1282 |
p.setMaximumPoolSize(1); |
1283 |
shouldThrow(); |
1284 |
} catch (IllegalArgumentException success) {} |
1285 |
} |
1286 |
} |
1287 |
|
1288 |
/** |
1289 |
* setMaximumPoolSize throws IllegalArgumentException |
1290 |
* if given a negative value |
1291 |
*/ |
1292 |
public void testMaximumPoolSizeIllegalArgumentException2() { |
1293 |
final ThreadPoolExecutor p = |
1294 |
new CustomTPE(2, 3, |
1295 |
LONG_DELAY_MS, MILLISECONDS, |
1296 |
new ArrayBlockingQueue<Runnable>(10)); |
1297 |
try (PoolCleaner cleaner = cleaner(p)) { |
1298 |
try { |
1299 |
p.setMaximumPoolSize(-1); |
1300 |
shouldThrow(); |
1301 |
} catch (IllegalArgumentException success) {} |
1302 |
} |
1303 |
} |
1304 |
|
1305 |
/** |
1306 |
* setKeepAliveTime throws IllegalArgumentException |
1307 |
* when given a negative value |
1308 |
*/ |
1309 |
public void testKeepAliveTimeIllegalArgumentException() { |
1310 |
final ThreadPoolExecutor p = |
1311 |
new CustomTPE(2, 3, |
1312 |
LONG_DELAY_MS, MILLISECONDS, |
1313 |
new ArrayBlockingQueue<Runnable>(10)); |
1314 |
try (PoolCleaner cleaner = cleaner(p)) { |
1315 |
try { |
1316 |
p.setKeepAliveTime(-1, MILLISECONDS); |
1317 |
shouldThrow(); |
1318 |
} catch (IllegalArgumentException success) {} |
1319 |
} |
1320 |
} |
1321 |
|
1322 |
/** |
1323 |
* terminated() is called on termination |
1324 |
*/ |
1325 |
public void testTerminated() { |
1326 |
CustomTPE p = new CustomTPE(); |
1327 |
try (PoolCleaner cleaner = cleaner(p)) { |
1328 |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
1329 |
assertTrue(p.terminatedCalled()); |
1330 |
assertTrue(p.isShutdown()); |
1331 |
} |
1332 |
} |
1333 |
|
1334 |
/** |
1335 |
* beforeExecute and afterExecute are called when executing task |
1336 |
*/ |
1337 |
public void testBeforeAfter() throws InterruptedException { |
1338 |
CustomTPE p = new CustomTPE(); |
1339 |
try (PoolCleaner cleaner = cleaner(p)) { |
1340 |
final CountDownLatch done = new CountDownLatch(1); |
1341 |
p.execute(new CheckedRunnable() { |
1342 |
public void realRun() { |
1343 |
done.countDown(); |
1344 |
}}); |
1345 |
await(p.afterCalled); |
1346 |
assertEquals(0, done.getCount()); |
1347 |
assertTrue(p.afterCalled()); |
1348 |
assertTrue(p.beforeCalled()); |
1349 |
} |
1350 |
} |
1351 |
|
1352 |
/** |
1353 |
* completed submit of callable returns result |
1354 |
*/ |
1355 |
public void testSubmitCallable() throws Exception { |
1356 |
final ExecutorService e = |
1357 |
new CustomTPE(2, 2, |
1358 |
LONG_DELAY_MS, MILLISECONDS, |
1359 |
new ArrayBlockingQueue<Runnable>(10)); |
1360 |
try (PoolCleaner cleaner = cleaner(e)) { |
1361 |
Future<String> future = e.submit(new StringTask()); |
1362 |
String result = future.get(); |
1363 |
assertSame(TEST_STRING, result); |
1364 |
} |
1365 |
} |
1366 |
|
1367 |
/** |
1368 |
* completed submit of runnable returns successfully |
1369 |
*/ |
1370 |
public void testSubmitRunnable() throws Exception { |
1371 |
final ExecutorService e = |
1372 |
new CustomTPE(2, 2, |
1373 |
LONG_DELAY_MS, MILLISECONDS, |
1374 |
new ArrayBlockingQueue<Runnable>(10)); |
1375 |
try (PoolCleaner cleaner = cleaner(e)) { |
1376 |
Future<?> future = e.submit(new NoOpRunnable()); |
1377 |
future.get(); |
1378 |
assertTrue(future.isDone()); |
1379 |
} |
1380 |
} |
1381 |
|
1382 |
/** |
1383 |
* completed submit of (runnable, result) returns result |
1384 |
*/ |
1385 |
public void testSubmitRunnable2() throws Exception { |
1386 |
final ExecutorService e = |
1387 |
new CustomTPE(2, 2, |
1388 |
LONG_DELAY_MS, MILLISECONDS, |
1389 |
new ArrayBlockingQueue<Runnable>(10)); |
1390 |
try (PoolCleaner cleaner = cleaner(e)) { |
1391 |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
1392 |
String result = future.get(); |
1393 |
assertSame(TEST_STRING, result); |
1394 |
} |
1395 |
} |
1396 |
|
1397 |
/** |
1398 |
* invokeAny(null) throws NullPointerException |
1399 |
*/ |
1400 |
public void testInvokeAny1() throws Exception { |
1401 |
final ExecutorService e = |
1402 |
new CustomTPE(2, 2, |
1403 |
LONG_DELAY_MS, MILLISECONDS, |
1404 |
new ArrayBlockingQueue<Runnable>(10)); |
1405 |
try (PoolCleaner cleaner = cleaner(e)) { |
1406 |
try { |
1407 |
e.invokeAny(null); |
1408 |
shouldThrow(); |
1409 |
} catch (NullPointerException success) {} |
1410 |
} |
1411 |
} |
1412 |
|
1413 |
/** |
1414 |
* invokeAny(empty collection) throws IllegalArgumentException |
1415 |
*/ |
1416 |
public void testInvokeAny2() throws Exception { |
1417 |
final ExecutorService e = |
1418 |
new CustomTPE(2, 2, |
1419 |
LONG_DELAY_MS, MILLISECONDS, |
1420 |
new ArrayBlockingQueue<Runnable>(10)); |
1421 |
try (PoolCleaner cleaner = cleaner(e)) { |
1422 |
try { |
1423 |
e.invokeAny(new ArrayList<Callable<String>>()); |
1424 |
shouldThrow(); |
1425 |
} catch (IllegalArgumentException success) {} |
1426 |
} |
1427 |
} |
1428 |
|
1429 |
/** |
1430 |
* invokeAny(c) throws NPE if c has null elements |
1431 |
*/ |
1432 |
public void testInvokeAny3() throws Exception { |
1433 |
CountDownLatch latch = new CountDownLatch(1); |
1434 |
final ExecutorService e = |
1435 |
new CustomTPE(2, 2, |
1436 |
LONG_DELAY_MS, MILLISECONDS, |
1437 |
new ArrayBlockingQueue<Runnable>(10)); |
1438 |
try (PoolCleaner cleaner = cleaner(e)) { |
1439 |
List<Callable<String>> l = new ArrayList<>(); |
1440 |
l.add(latchAwaitingStringTask(latch)); |
1441 |
l.add(null); |
1442 |
try { |
1443 |
e.invokeAny(l); |
1444 |
shouldThrow(); |
1445 |
} catch (NullPointerException success) {} |
1446 |
latch.countDown(); |
1447 |
} |
1448 |
} |
1449 |
|
1450 |
/** |
1451 |
* invokeAny(c) throws ExecutionException if no task completes |
1452 |
*/ |
1453 |
public void testInvokeAny4() throws Exception { |
1454 |
final ExecutorService e = |
1455 |
new CustomTPE(2, 2, |
1456 |
LONG_DELAY_MS, MILLISECONDS, |
1457 |
new ArrayBlockingQueue<Runnable>(10)); |
1458 |
try (PoolCleaner cleaner = cleaner(e)) { |
1459 |
List<Callable<String>> l = new ArrayList<>(); |
1460 |
l.add(new NPETask()); |
1461 |
try { |
1462 |
e.invokeAny(l); |
1463 |
shouldThrow(); |
1464 |
} catch (ExecutionException success) { |
1465 |
assertTrue(success.getCause() instanceof NullPointerException); |
1466 |
} |
1467 |
} |
1468 |
} |
1469 |
|
1470 |
/** |
1471 |
* invokeAny(c) returns result of some task |
1472 |
*/ |
1473 |
public void testInvokeAny5() throws Exception { |
1474 |
final ExecutorService e = |
1475 |
new CustomTPE(2, 2, |
1476 |
LONG_DELAY_MS, MILLISECONDS, |
1477 |
new ArrayBlockingQueue<Runnable>(10)); |
1478 |
try (PoolCleaner cleaner = cleaner(e)) { |
1479 |
List<Callable<String>> l = new ArrayList<>(); |
1480 |
l.add(new StringTask()); |
1481 |
l.add(new StringTask()); |
1482 |
String result = e.invokeAny(l); |
1483 |
assertSame(TEST_STRING, result); |
1484 |
} |
1485 |
} |
1486 |
|
1487 |
/** |
1488 |
* invokeAll(null) throws NPE |
1489 |
*/ |
1490 |
public void testInvokeAll1() throws Exception { |
1491 |
final ExecutorService e = |
1492 |
new CustomTPE(2, 2, |
1493 |
LONG_DELAY_MS, MILLISECONDS, |
1494 |
new ArrayBlockingQueue<Runnable>(10)); |
1495 |
try (PoolCleaner cleaner = cleaner(e)) { |
1496 |
try { |
1497 |
e.invokeAll(null); |
1498 |
shouldThrow(); |
1499 |
} catch (NullPointerException success) {} |
1500 |
} |
1501 |
} |
1502 |
|
1503 |
/** |
1504 |
* invokeAll(empty collection) returns empty list |
1505 |
*/ |
1506 |
public void testInvokeAll2() throws Exception { |
1507 |
final ExecutorService e = |
1508 |
new CustomTPE(2, 2, |
1509 |
LONG_DELAY_MS, MILLISECONDS, |
1510 |
new ArrayBlockingQueue<Runnable>(10)); |
1511 |
final Collection<Callable<String>> emptyCollection |
1512 |
= Collections.emptyList(); |
1513 |
try (PoolCleaner cleaner = cleaner(e)) { |
1514 |
List<Future<String>> r = e.invokeAll(emptyCollection); |
1515 |
assertTrue(r.isEmpty()); |
1516 |
} |
1517 |
} |
1518 |
|
1519 |
/** |
1520 |
* invokeAll(c) throws NPE if c has null elements |
1521 |
*/ |
1522 |
public void testInvokeAll3() throws Exception { |
1523 |
final ExecutorService e = |
1524 |
new CustomTPE(2, 2, |
1525 |
LONG_DELAY_MS, MILLISECONDS, |
1526 |
new ArrayBlockingQueue<Runnable>(10)); |
1527 |
try (PoolCleaner cleaner = cleaner(e)) { |
1528 |
List<Callable<String>> l = new ArrayList<>(); |
1529 |
l.add(new StringTask()); |
1530 |
l.add(null); |
1531 |
try { |
1532 |
e.invokeAll(l); |
1533 |
shouldThrow(); |
1534 |
} catch (NullPointerException success) {} |
1535 |
} |
1536 |
} |
1537 |
|
1538 |
/** |
1539 |
* get of element of invokeAll(c) throws exception on failed task |
1540 |
*/ |
1541 |
public void testInvokeAll4() throws Exception { |
1542 |
final ExecutorService e = |
1543 |
new CustomTPE(2, 2, |
1544 |
LONG_DELAY_MS, MILLISECONDS, |
1545 |
new ArrayBlockingQueue<Runnable>(10)); |
1546 |
try (PoolCleaner cleaner = cleaner(e)) { |
1547 |
List<Callable<String>> l = new ArrayList<>(); |
1548 |
l.add(new NPETask()); |
1549 |
List<Future<String>> futures = e.invokeAll(l); |
1550 |
assertEquals(1, futures.size()); |
1551 |
try { |
1552 |
futures.get(0).get(); |
1553 |
shouldThrow(); |
1554 |
} catch (ExecutionException success) { |
1555 |
assertTrue(success.getCause() instanceof NullPointerException); |
1556 |
} |
1557 |
} |
1558 |
} |
1559 |
|
1560 |
/** |
1561 |
* invokeAll(c) returns results of all completed tasks |
1562 |
*/ |
1563 |
public void testInvokeAll5() throws Exception { |
1564 |
final ExecutorService e = |
1565 |
new CustomTPE(2, 2, |
1566 |
LONG_DELAY_MS, MILLISECONDS, |
1567 |
new ArrayBlockingQueue<Runnable>(10)); |
1568 |
try (PoolCleaner cleaner = cleaner(e)) { |
1569 |
List<Callable<String>> l = new ArrayList<>(); |
1570 |
l.add(new StringTask()); |
1571 |
l.add(new StringTask()); |
1572 |
List<Future<String>> futures = e.invokeAll(l); |
1573 |
assertEquals(2, futures.size()); |
1574 |
for (Future<String> future : futures) |
1575 |
assertSame(TEST_STRING, future.get()); |
1576 |
} |
1577 |
} |
1578 |
|
1579 |
/** |
1580 |
* timed invokeAny(null) throws NPE |
1581 |
*/ |
1582 |
public void testTimedInvokeAny1() throws Exception { |
1583 |
final ExecutorService e = |
1584 |
new CustomTPE(2, 2, |
1585 |
LONG_DELAY_MS, MILLISECONDS, |
1586 |
new ArrayBlockingQueue<Runnable>(10)); |
1587 |
try (PoolCleaner cleaner = cleaner(e)) { |
1588 |
try { |
1589 |
e.invokeAny(null, randomTimeout(), randomTimeUnit()); |
1590 |
shouldThrow(); |
1591 |
} catch (NullPointerException success) {} |
1592 |
} |
1593 |
} |
1594 |
|
1595 |
/** |
1596 |
* timed invokeAny(,,null) throws NPE |
1597 |
*/ |
1598 |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
1599 |
final ExecutorService e = |
1600 |
new CustomTPE(2, 2, |
1601 |
LONG_DELAY_MS, MILLISECONDS, |
1602 |
new ArrayBlockingQueue<Runnable>(10)); |
1603 |
try (PoolCleaner cleaner = cleaner(e)) { |
1604 |
List<Callable<String>> l = new ArrayList<>(); |
1605 |
l.add(new StringTask()); |
1606 |
try { |
1607 |
e.invokeAny(l, randomTimeout(), null); |
1608 |
shouldThrow(); |
1609 |
} catch (NullPointerException success) {} |
1610 |
} |
1611 |
} |
1612 |
|
1613 |
/** |
1614 |
* timed invokeAny(empty collection) throws IllegalArgumentException |
1615 |
*/ |
1616 |
public void testTimedInvokeAny2() throws Exception { |
1617 |
final ExecutorService e = |
1618 |
new CustomTPE(2, 2, |
1619 |
LONG_DELAY_MS, MILLISECONDS, |
1620 |
new ArrayBlockingQueue<Runnable>(10)); |
1621 |
final Collection<Callable<String>> emptyCollection |
1622 |
= Collections.emptyList(); |
1623 |
try (PoolCleaner cleaner = cleaner(e)) { |
1624 |
try { |
1625 |
e.invokeAny(emptyCollection, randomTimeout(), randomTimeUnit()); |
1626 |
shouldThrow(); |
1627 |
} catch (IllegalArgumentException success) {} |
1628 |
} |
1629 |
} |
1630 |
|
1631 |
/** |
1632 |
* timed invokeAny(c) throws NPE if c has null elements |
1633 |
*/ |
1634 |
public void testTimedInvokeAny3() throws Exception { |
1635 |
CountDownLatch latch = new CountDownLatch(1); |
1636 |
final ExecutorService e = |
1637 |
new CustomTPE(2, 2, |
1638 |
LONG_DELAY_MS, MILLISECONDS, |
1639 |
new ArrayBlockingQueue<Runnable>(10)); |
1640 |
try (PoolCleaner cleaner = cleaner(e)) { |
1641 |
List<Callable<String>> l = new ArrayList<>(); |
1642 |
l.add(latchAwaitingStringTask(latch)); |
1643 |
l.add(null); |
1644 |
try { |
1645 |
e.invokeAny(l, randomTimeout(), MILLISECONDS); |
1646 |
shouldThrow(); |
1647 |
} catch (NullPointerException success) {} |
1648 |
latch.countDown(); |
1649 |
} |
1650 |
} |
1651 |
|
1652 |
/** |
1653 |
* timed invokeAny(c) throws ExecutionException if no task completes |
1654 |
*/ |
1655 |
public void testTimedInvokeAny4() throws Exception { |
1656 |
final ExecutorService e = |
1657 |
new CustomTPE(2, 2, |
1658 |
LONG_DELAY_MS, MILLISECONDS, |
1659 |
new ArrayBlockingQueue<Runnable>(10)); |
1660 |
try (PoolCleaner cleaner = cleaner(e)) { |
1661 |
long startTime = System.nanoTime(); |
1662 |
List<Callable<String>> l = new ArrayList<>(); |
1663 |
l.add(new NPETask()); |
1664 |
try { |
1665 |
e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS); |
1666 |
shouldThrow(); |
1667 |
} catch (ExecutionException success) { |
1668 |
assertTrue(success.getCause() instanceof NullPointerException); |
1669 |
} |
1670 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1671 |
} |
1672 |
} |
1673 |
|
1674 |
/** |
1675 |
* timed invokeAny(c) returns result of some task |
1676 |
*/ |
1677 |
public void testTimedInvokeAny5() throws Exception { |
1678 |
final ExecutorService e = |
1679 |
new CustomTPE(2, 2, |
1680 |
LONG_DELAY_MS, MILLISECONDS, |
1681 |
new ArrayBlockingQueue<Runnable>(10)); |
1682 |
try (PoolCleaner cleaner = cleaner(e)) { |
1683 |
long startTime = System.nanoTime(); |
1684 |
List<Callable<String>> l = new ArrayList<>(); |
1685 |
l.add(new StringTask()); |
1686 |
l.add(new StringTask()); |
1687 |
String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS); |
1688 |
assertSame(TEST_STRING, result); |
1689 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1690 |
} |
1691 |
} |
1692 |
|
1693 |
/** |
1694 |
* timed invokeAll(null) throws NPE |
1695 |
*/ |
1696 |
public void testTimedInvokeAll1() throws Exception { |
1697 |
final ExecutorService e = |
1698 |
new CustomTPE(2, 2, |
1699 |
LONG_DELAY_MS, MILLISECONDS, |
1700 |
new ArrayBlockingQueue<Runnable>(10)); |
1701 |
try (PoolCleaner cleaner = cleaner(e)) { |
1702 |
try { |
1703 |
e.invokeAll(null, randomTimeout(), randomTimeUnit()); |
1704 |
shouldThrow(); |
1705 |
} catch (NullPointerException success) {} |
1706 |
} |
1707 |
} |
1708 |
|
1709 |
/** |
1710 |
* timed invokeAll(,,null) throws NPE |
1711 |
*/ |
1712 |
public void testTimedInvokeAllNullTimeUnit() throws Exception { |
1713 |
final ExecutorService e = |
1714 |
new CustomTPE(2, 2, |
1715 |
LONG_DELAY_MS, MILLISECONDS, |
1716 |
new ArrayBlockingQueue<Runnable>(10)); |
1717 |
try (PoolCleaner cleaner = cleaner(e)) { |
1718 |
List<Callable<String>> l = new ArrayList<>(); |
1719 |
l.add(new StringTask()); |
1720 |
try { |
1721 |
e.invokeAll(l, randomTimeout(), null); |
1722 |
shouldThrow(); |
1723 |
} catch (NullPointerException success) {} |
1724 |
} |
1725 |
} |
1726 |
|
1727 |
/** |
1728 |
* timed invokeAll(empty collection) returns empty list |
1729 |
*/ |
1730 |
public void testTimedInvokeAll2() throws Exception { |
1731 |
final ExecutorService e = |
1732 |
new CustomTPE(2, 2, |
1733 |
LONG_DELAY_MS, MILLISECONDS, |
1734 |
new ArrayBlockingQueue<Runnable>(10)); |
1735 |
final Collection<Callable<String>> emptyCollection |
1736 |
= Collections.emptyList(); |
1737 |
try (PoolCleaner cleaner = cleaner(e)) { |
1738 |
List<Future<String>> r = |
1739 |
e.invokeAll(emptyCollection, randomTimeout(), randomTimeUnit()); |
1740 |
assertTrue(r.isEmpty()); |
1741 |
} |
1742 |
} |
1743 |
|
1744 |
/** |
1745 |
* timed invokeAll(c) throws NPE if c has null elements |
1746 |
*/ |
1747 |
public void testTimedInvokeAll3() throws Exception { |
1748 |
final ExecutorService e = |
1749 |
new CustomTPE(2, 2, |
1750 |
LONG_DELAY_MS, MILLISECONDS, |
1751 |
new ArrayBlockingQueue<Runnable>(10)); |
1752 |
try (PoolCleaner cleaner = cleaner(e)) { |
1753 |
List<Callable<String>> l = new ArrayList<>(); |
1754 |
l.add(new StringTask()); |
1755 |
l.add(null); |
1756 |
try { |
1757 |
e.invokeAll(l, randomTimeout(), randomTimeUnit()); |
1758 |
shouldThrow(); |
1759 |
} catch (NullPointerException success) {} |
1760 |
} |
1761 |
} |
1762 |
|
1763 |
/** |
1764 |
* get of element of invokeAll(c) throws exception on failed task |
1765 |
*/ |
1766 |
public void testTimedInvokeAll4() throws Exception { |
1767 |
final ExecutorService e = |
1768 |
new CustomTPE(2, 2, |
1769 |
LONG_DELAY_MS, MILLISECONDS, |
1770 |
new ArrayBlockingQueue<Runnable>(10)); |
1771 |
try (PoolCleaner cleaner = cleaner(e)) { |
1772 |
List<Callable<String>> l = new ArrayList<>(); |
1773 |
l.add(new NPETask()); |
1774 |
List<Future<String>> futures = |
1775 |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1776 |
assertEquals(1, futures.size()); |
1777 |
try { |
1778 |
futures.get(0).get(); |
1779 |
shouldThrow(); |
1780 |
} catch (ExecutionException success) { |
1781 |
assertTrue(success.getCause() instanceof NullPointerException); |
1782 |
} |
1783 |
} |
1784 |
} |
1785 |
|
1786 |
/** |
1787 |
* timed invokeAll(c) returns results of all completed tasks |
1788 |
*/ |
1789 |
public void testTimedInvokeAll5() throws Exception { |
1790 |
final ExecutorService e = |
1791 |
new CustomTPE(2, 2, |
1792 |
LONG_DELAY_MS, MILLISECONDS, |
1793 |
new ArrayBlockingQueue<Runnable>(10)); |
1794 |
try (PoolCleaner cleaner = cleaner(e)) { |
1795 |
List<Callable<String>> l = new ArrayList<>(); |
1796 |
l.add(new StringTask()); |
1797 |
l.add(new StringTask()); |
1798 |
List<Future<String>> futures = |
1799 |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1800 |
assertEquals(2, futures.size()); |
1801 |
for (Future<String> future : futures) |
1802 |
assertSame(TEST_STRING, future.get()); |
1803 |
} |
1804 |
} |
1805 |
|
1806 |
/** |
1807 |
* timed invokeAll(c) cancels tasks not completed by timeout |
1808 |
*/ |
1809 |
public void testTimedInvokeAll6() throws Exception { |
1810 |
for (long timeout = timeoutMillis();;) { |
1811 |
final CountDownLatch done = new CountDownLatch(1); |
1812 |
final Callable<String> waiter = new CheckedCallable<String>() { |
1813 |
public String realCall() { |
1814 |
try { done.await(LONG_DELAY_MS, MILLISECONDS); } |
1815 |
catch (InterruptedException ok) {} |
1816 |
return "1"; }}; |
1817 |
final ExecutorService p = |
1818 |
new CustomTPE(2, 2, |
1819 |
LONG_DELAY_MS, MILLISECONDS, |
1820 |
new ArrayBlockingQueue<Runnable>(10)); |
1821 |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1822 |
List<Callable<String>> tasks = new ArrayList<>(); |
1823 |
tasks.add(new StringTask("0")); |
1824 |
tasks.add(waiter); |
1825 |
tasks.add(new StringTask("2")); |
1826 |
long startTime = System.nanoTime(); |
1827 |
List<Future<String>> futures = |
1828 |
p.invokeAll(tasks, timeout, MILLISECONDS); |
1829 |
assertEquals(tasks.size(), futures.size()); |
1830 |
assertTrue(millisElapsedSince(startTime) >= timeout); |
1831 |
for (Future future : futures) |
1832 |
assertTrue(future.isDone()); |
1833 |
assertTrue(futures.get(1).isCancelled()); |
1834 |
try { |
1835 |
assertEquals("0", futures.get(0).get()); |
1836 |
assertEquals("2", futures.get(2).get()); |
1837 |
break; |
1838 |
} catch (CancellationException retryWithLongerTimeout) { |
1839 |
timeout *= 2; |
1840 |
if (timeout >= LONG_DELAY_MS / 2) |
1841 |
fail("expected exactly one task to be cancelled"); |
1842 |
} |
1843 |
} |
1844 |
} |
1845 |
} |
1846 |
|
1847 |
/** |
1848 |
* Execution continues if there is at least one thread even if |
1849 |
* thread factory fails to create more |
1850 |
*/ |
1851 |
public void testFailingThreadFactory() throws InterruptedException { |
1852 |
final ExecutorService e = |
1853 |
new CustomTPE(100, 100, |
1854 |
LONG_DELAY_MS, MILLISECONDS, |
1855 |
new LinkedBlockingQueue<Runnable>(), |
1856 |
new FailingThreadFactory()); |
1857 |
try (PoolCleaner cleaner = cleaner(e)) { |
1858 |
final int TASKS = 100; |
1859 |
final CountDownLatch done = new CountDownLatch(TASKS); |
1860 |
for (int k = 0; k < TASKS; ++k) |
1861 |
e.execute(new CheckedRunnable() { |
1862 |
public void realRun() { |
1863 |
done.countDown(); |
1864 |
}}); |
1865 |
await(done); |
1866 |
} |
1867 |
} |
1868 |
|
1869 |
/** |
1870 |
* allowsCoreThreadTimeOut is by default false. |
1871 |
*/ |
1872 |
public void testAllowsCoreThreadTimeOut() { |
1873 |
final ThreadPoolExecutor p = |
1874 |
new CustomTPE(2, 2, |
1875 |
1000, MILLISECONDS, |
1876 |
new ArrayBlockingQueue<Runnable>(10)); |
1877 |
try (PoolCleaner cleaner = cleaner(p)) { |
1878 |
assertFalse(p.allowsCoreThreadTimeOut()); |
1879 |
} |
1880 |
} |
1881 |
|
1882 |
/** |
1883 |
* allowCoreThreadTimeOut(true) causes idle threads to time out |
1884 |
*/ |
1885 |
public void testAllowCoreThreadTimeOut_true() throws Exception { |
1886 |
long keepAliveTime = timeoutMillis(); |
1887 |
final ThreadPoolExecutor p = |
1888 |
new CustomTPE(2, 10, |
1889 |
keepAliveTime, MILLISECONDS, |
1890 |
new ArrayBlockingQueue<Runnable>(10)); |
1891 |
try (PoolCleaner cleaner = cleaner(p)) { |
1892 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
1893 |
p.allowCoreThreadTimeOut(true); |
1894 |
p.execute(new CheckedRunnable() { |
1895 |
public void realRun() { |
1896 |
threadStarted.countDown(); |
1897 |
assertEquals(1, p.getPoolSize()); |
1898 |
}}); |
1899 |
await(threadStarted); |
1900 |
delay(keepAliveTime); |
1901 |
long startTime = System.nanoTime(); |
1902 |
while (p.getPoolSize() > 0 |
1903 |
&& millisElapsedSince(startTime) < LONG_DELAY_MS) |
1904 |
Thread.yield(); |
1905 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1906 |
assertEquals(0, p.getPoolSize()); |
1907 |
} |
1908 |
} |
1909 |
|
1910 |
/** |
1911 |
* allowCoreThreadTimeOut(false) causes idle threads not to time out |
1912 |
*/ |
1913 |
public void testAllowCoreThreadTimeOut_false() throws Exception { |
1914 |
long keepAliveTime = timeoutMillis(); |
1915 |
final ThreadPoolExecutor p = |
1916 |
new CustomTPE(2, 10, |
1917 |
keepAliveTime, MILLISECONDS, |
1918 |
new ArrayBlockingQueue<Runnable>(10)); |
1919 |
try (PoolCleaner cleaner = cleaner(p)) { |
1920 |
final CountDownLatch threadStarted = new CountDownLatch(1); |
1921 |
p.allowCoreThreadTimeOut(false); |
1922 |
p.execute(new CheckedRunnable() { |
1923 |
public void realRun() throws InterruptedException { |
1924 |
threadStarted.countDown(); |
1925 |
assertTrue(p.getPoolSize() >= 1); |
1926 |
}}); |
1927 |
delay(2 * keepAliveTime); |
1928 |
assertTrue(p.getPoolSize() >= 1); |
1929 |
} |
1930 |
} |
1931 |
|
1932 |
/** |
1933 |
* get(cancelled task) throws CancellationException |
1934 |
* (in part, a test of CustomTPE itself) |
1935 |
*/ |
1936 |
public void testGet_cancelled() throws Exception { |
1937 |
final CountDownLatch done = new CountDownLatch(1); |
1938 |
final ExecutorService e = |
1939 |
new CustomTPE(1, 1, |
1940 |
LONG_DELAY_MS, MILLISECONDS, |
1941 |
new LinkedBlockingQueue<Runnable>()); |
1942 |
try (PoolCleaner cleaner = cleaner(e, done)) { |
1943 |
final CountDownLatch blockerStarted = new CountDownLatch(1); |
1944 |
final List<Future<?>> futures = new ArrayList<>(); |
1945 |
for (int i = 0; i < 2; i++) { |
1946 |
Runnable r = new CheckedRunnable() { public void realRun() |
1947 |
throws Throwable { |
1948 |
blockerStarted.countDown(); |
1949 |
assertTrue(done.await(2 * LONG_DELAY_MS, MILLISECONDS)); |
1950 |
}}; |
1951 |
futures.add(e.submit(r)); |
1952 |
} |
1953 |
await(blockerStarted); |
1954 |
for (Future<?> future : futures) future.cancel(false); |
1955 |
for (Future<?> future : futures) { |
1956 |
try { |
1957 |
future.get(); |
1958 |
shouldThrow(); |
1959 |
} catch (CancellationException success) {} |
1960 |
try { |
1961 |
future.get(LONG_DELAY_MS, MILLISECONDS); |
1962 |
shouldThrow(); |
1963 |
} catch (CancellationException success) {} |
1964 |
assertTrue(future.isCancelled()); |
1965 |
assertTrue(future.isDone()); |
1966 |
} |
1967 |
} |
1968 |
} |
1969 |
|
1970 |
} |