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/* |
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* Written by members of JCP JSR-166 Expert Group and released to the |
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* public domain. Use, modify, and redistribute this code in any way |
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* without acknowledgement. Other contributors include Andrew Wright, |
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* Jeffrey Hayes, Pat Fischer, Mike Judd. |
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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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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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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.math.BigInteger; |
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import java.security.AccessControlContext; |
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import java.security.AccessControlException; |
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import java.security.AccessController; |
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import java.security.PrivilegedAction; |
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import java.security.PrivilegedExceptionAction; |
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.concurrent.Callable; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.Executors; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.Future; |
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import java.util.concurrent.ScheduledExecutorService; |
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import java.util.concurrent.ThreadPoolExecutor; |
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|
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public class ExecutorsTest extends JSR166TestCase{ |
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|
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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|
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public class ExecutorsTest 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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main(suite(), args); |
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} |
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|
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|
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public static Test suite() { |
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return new TestSuite(ExecutorsTest.class); |
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return new TestSuite(ExecutorsTest.class); |
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} |
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|
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/** |
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* execute(Executor, Runnable) will throw |
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* RejectedExecutionException Attempting to execute a runnable on |
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* a full ThreadPool will cause such an exception here, up to 5 |
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* runnables are attempted on a pool capable on handling one |
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* until it throws an exception |
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*/ |
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public void testExecute1(){ |
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ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1)); |
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try{ |
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|
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for(int i = 0; i < 5; ++i){ |
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Executors.execute(p, new MediumRunnable(), Boolean.TRUE); |
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} |
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fail("should throw"); |
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} catch(RejectedExecutionException success){} |
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joinPool(p); |
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* A newCachedThreadPool can execute runnables |
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*/ |
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public void testNewCachedThreadPool1() { |
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final ExecutorService e = Executors.newCachedThreadPool(); |
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try (PoolCleaner cleaner = cleaner(e)) { |
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e.execute(new NoOpRunnable()); |
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e.execute(new NoOpRunnable()); |
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e.execute(new NoOpRunnable()); |
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} |
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} |
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|
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/** |
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* execute(Executor, Callable) will throw |
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* RejectedExecutionException Attempting to execute a callable on |
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* a full ThreadPool will cause such an exception here, up to 5 |
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* runnables are attempted on a pool capable on handling one |
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* until it throws an exception |
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*/ |
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public void testExecute2(){ |
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ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1)); |
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try{ |
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for(int i = 0; i < 5; ++i) { |
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Executors.execute(p, new SmallCallable()); |
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} |
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fail("should throw"); |
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}catch(RejectedExecutionException e){} |
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joinPool(p); |
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* A newCachedThreadPool with given ThreadFactory can execute runnables |
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*/ |
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public void testNewCachedThreadPool2() { |
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final ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory()); |
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try (PoolCleaner cleaner = cleaner(e)) { |
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e.execute(new NoOpRunnable()); |
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e.execute(new NoOpRunnable()); |
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e.execute(new NoOpRunnable()); |
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} |
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} |
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/** |
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* invoke(Executor, Runnable) throws InterruptedException |
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* A single use of invoke starts that will wait long enough |
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* for the invoking thread to be interrupted |
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*/ |
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public void testInvoke2(){ |
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final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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Thread t = new Thread(new Runnable() { |
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public void run(){ |
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try{ |
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Executors.invoke(p,new Runnable(){ |
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public void run(){ |
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try{ |
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Thread.sleep(MEDIUM_DELAY_MS); |
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fail("should throw"); |
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}catch(InterruptedException e){ |
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} |
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} |
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}); |
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} catch(InterruptedException success){ |
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} catch(Exception e) { |
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fail("unexpected exception"); |
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} |
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|
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} |
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}); |
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try{ |
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t.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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t.interrupt(); |
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}catch(Exception e){ |
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fail("unexpected exception"); |
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} |
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joinPool(p); |
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* A newCachedThreadPool with null ThreadFactory throws NPE |
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*/ |
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public void testNewCachedThreadPool3() { |
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try { |
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ExecutorService unused = Executors.newCachedThreadPool(null); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
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/** |
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* invoke(Executor, Runnable) will throw |
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* ExecutionException An ExecutionException occurs when the |
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* underlying Runnable throws an exception, here the |
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* DivideByZeroException will cause an ExecutionException |
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*/ |
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public void testInvoke3(){ |
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ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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try{ |
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Runnable r = new Runnable(){ |
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public void run(){ |
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int i = 5/0; |
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} |
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}; |
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|
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for(int i =0; i < 5; i++){ |
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Executors.invoke(p,r); |
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} |
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|
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fail("should throw"); |
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} catch(ExecutionException success){ |
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} catch(Exception e){ |
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fail("should throw EE"); |
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} |
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joinPool(p); |
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* A new SingleThreadExecutor can execute runnables |
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*/ |
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public void testNewSingleThreadExecutor1() { |
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final ExecutorService e = Executors.newSingleThreadExecutor(); |
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try (PoolCleaner cleaner = cleaner(e)) { |
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e.execute(new NoOpRunnable()); |
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e.execute(new NoOpRunnable()); |
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e.execute(new NoOpRunnable()); |
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} |
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} |
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|
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/** |
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* A new SingleThreadExecutor with given ThreadFactory can execute runnables |
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*/ |
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public void testNewSingleThreadExecutor2() { |
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final ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory()); |
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try (PoolCleaner cleaner = cleaner(e)) { |
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e.execute(new NoOpRunnable()); |
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e.execute(new NoOpRunnable()); |
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e.execute(new NoOpRunnable()); |
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} |
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} |
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|
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/** |
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* A new SingleThreadExecutor with null ThreadFactory throws NPE |
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*/ |
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public void testNewSingleThreadExecutor3() { |
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try { |
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ExecutorService unused = Executors.newSingleThreadExecutor(null); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* invoke(Executor, Callable) throws |
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* InterruptedException A single use of invoke starts that will |
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* wait long enough for the invoking thread to be interrupted |
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*/ |
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public void testInvoke5(){ |
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final ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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|
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final Callable c = new Callable(){ |
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public Object call(){ |
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try{ |
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Executors.invoke(p, new SmallCallable()); |
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fail("should throw"); |
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}catch(InterruptedException e){} |
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catch(RejectedExecutionException e2){} |
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catch(ExecutionException e3){} |
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return Boolean.TRUE; |
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} |
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}; |
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* A new SingleThreadExecutor cannot be casted to concrete implementation |
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*/ |
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public void testCastNewSingleThreadExecutor() { |
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final ExecutorService e = Executors.newSingleThreadExecutor(); |
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try (PoolCleaner cleaner = cleaner(e)) { |
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try { |
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ThreadPoolExecutor tpe = (ThreadPoolExecutor)e; |
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shouldThrow(); |
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} catch (ClassCastException success) {} |
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} |
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} |
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|
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/** |
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* A new newFixedThreadPool can execute runnables |
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*/ |
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public void testNewFixedThreadPool1() { |
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final ExecutorService e = Executors.newFixedThreadPool(2); |
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try (PoolCleaner cleaner = cleaner(e)) { |
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e.execute(new NoOpRunnable()); |
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e.execute(new NoOpRunnable()); |
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e.execute(new NoOpRunnable()); |
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} |
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} |
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|
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|
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Thread t = new Thread(new Runnable(){ |
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public void run(){ |
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try{ |
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c.call(); |
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}catch(Exception e){} |
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} |
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}); |
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try{ |
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t.start(); |
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Thread.sleep(SHORT_DELAY_MS); |
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t.interrupt(); |
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t.join(); |
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}catch(InterruptedException e){ |
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fail("unexpected exception"); |
164 |
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} |
165 |
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|
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joinPool(p); |
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/** |
131 |
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* A new newFixedThreadPool with given ThreadFactory can execute runnables |
132 |
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*/ |
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public void testNewFixedThreadPool2() { |
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final ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory()); |
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try (PoolCleaner cleaner = cleaner(e)) { |
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e.execute(new NoOpRunnable()); |
137 |
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e.execute(new NoOpRunnable()); |
138 |
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e.execute(new NoOpRunnable()); |
139 |
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} |
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} |
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|
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/** |
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* invoke(Executor, Callable) will throw ExecutionException |
144 |
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* An ExecutionException occurs when the underlying Runnable throws |
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* an exception, here the DivideByZeroException will cause an ExecutionException |
146 |
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*/ |
147 |
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public void testInvoke6(){ |
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ThreadPoolExecutor p = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
149 |
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|
150 |
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try{ |
178 |
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Callable c = new Callable(){ |
179 |
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public Object call(){ |
180 |
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int i = 5/0; |
181 |
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return Boolean.TRUE; |
182 |
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} |
183 |
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}; |
184 |
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|
185 |
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for(int i =0; i < 5; i++){ |
186 |
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Executors.invoke(p,c); |
187 |
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} |
188 |
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|
189 |
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fail("should throw"); |
190 |
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}catch(RejectedExecutionException e){} |
191 |
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catch(InterruptedException e2){} |
192 |
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catch(ExecutionException e3){} |
193 |
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joinPool(p); |
143 |
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* A new newFixedThreadPool with null ThreadFactory throws |
144 |
> |
* NullPointerException |
145 |
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*/ |
146 |
> |
public void testNewFixedThreadPool3() { |
147 |
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try { |
148 |
> |
ExecutorService unused = Executors.newFixedThreadPool(2, null); |
149 |
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shouldThrow(); |
150 |
> |
} catch (NullPointerException success) {} |
151 |
|
} |
152 |
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|
153 |
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public void testExecuteRunnable () { |
153 |
> |
/** |
154 |
> |
* A new newFixedThreadPool with 0 threads throws IllegalArgumentException |
155 |
> |
*/ |
156 |
> |
public void testNewFixedThreadPool4() { |
157 |
|
try { |
158 |
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Executor e = new DirectExecutor(); |
159 |
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Task task = new Task(); |
158 |
> |
ExecutorService unused = Executors.newFixedThreadPool(0); |
159 |
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shouldThrow(); |
160 |
> |
} catch (IllegalArgumentException success) {} |
161 |
> |
} |
162 |
> |
|
163 |
> |
/** |
164 |
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* An unconfigurable newFixedThreadPool can execute runnables |
165 |
> |
*/ |
166 |
> |
public void testUnconfigurableExecutorService() { |
167 |
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final ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2)); |
168 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
169 |
> |
e.execute(new NoOpRunnable()); |
170 |
> |
e.execute(new NoOpRunnable()); |
171 |
> |
e.execute(new NoOpRunnable()); |
172 |
> |
} |
173 |
> |
} |
174 |
|
|
175 |
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assertFalse("task should not be complete", task.isCompleted()); |
175 |
> |
/** |
176 |
> |
* unconfigurableExecutorService(null) throws NPE |
177 |
> |
*/ |
178 |
> |
public void testUnconfigurableExecutorServiceNPE() { |
179 |
> |
try { |
180 |
> |
ExecutorService unused = |
181 |
> |
Executors.unconfigurableExecutorService(null); |
182 |
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shouldThrow(); |
183 |
> |
} catch (NullPointerException success) {} |
184 |
> |
} |
185 |
|
|
186 |
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Future<String> future = Executors.execute(e, task, TEST_STRING); |
187 |
< |
String result = future.get(); |
186 |
> |
/** |
187 |
> |
* unconfigurableScheduledExecutorService(null) throws NPE |
188 |
> |
*/ |
189 |
> |
public void testUnconfigurableScheduledExecutorServiceNPE() { |
190 |
> |
try { |
191 |
> |
ExecutorService unused = |
192 |
> |
Executors.unconfigurableScheduledExecutorService(null); |
193 |
> |
shouldThrow(); |
194 |
> |
} catch (NullPointerException success) {} |
195 |
> |
} |
196 |
|
|
197 |
< |
assertTrue("task should be complete", task.isCompleted()); |
198 |
< |
assertSame("should return test string", TEST_STRING, result); |
197 |
> |
/** |
198 |
> |
* a newSingleThreadScheduledExecutor successfully runs delayed task |
199 |
> |
*/ |
200 |
> |
public void testNewSingleThreadScheduledExecutor() throws Exception { |
201 |
> |
final ScheduledExecutorService p = Executors.newSingleThreadScheduledExecutor(); |
202 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
203 |
> |
final CountDownLatch proceed = new CountDownLatch(1); |
204 |
> |
final Runnable task = new CheckedRunnable() { |
205 |
> |
public void realRun() { |
206 |
> |
await(proceed); |
207 |
> |
}}; |
208 |
> |
long startTime = System.nanoTime(); |
209 |
> |
Future f = p.schedule(Executors.callable(task, Boolean.TRUE), |
210 |
> |
timeoutMillis(), MILLISECONDS); |
211 |
> |
assertFalse(f.isDone()); |
212 |
> |
proceed.countDown(); |
213 |
> |
assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS)); |
214 |
> |
assertSame(Boolean.TRUE, f.get()); |
215 |
> |
assertTrue(f.isDone()); |
216 |
> |
assertFalse(f.isCancelled()); |
217 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
218 |
|
} |
219 |
< |
catch (ExecutionException ex) { |
220 |
< |
fail("Unexpected exception"); |
219 |
> |
} |
220 |
> |
|
221 |
> |
/** |
222 |
> |
* a newScheduledThreadPool successfully runs delayed task |
223 |
> |
*/ |
224 |
> |
public void testNewScheduledThreadPool() throws Exception { |
225 |
> |
final ScheduledExecutorService p = Executors.newScheduledThreadPool(2); |
226 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
227 |
> |
final CountDownLatch proceed = new CountDownLatch(1); |
228 |
> |
final Runnable task = new CheckedRunnable() { |
229 |
> |
public void realRun() { |
230 |
> |
await(proceed); |
231 |
> |
}}; |
232 |
> |
long startTime = System.nanoTime(); |
233 |
> |
Future f = p.schedule(Executors.callable(task, Boolean.TRUE), |
234 |
> |
timeoutMillis(), MILLISECONDS); |
235 |
> |
assertFalse(f.isDone()); |
236 |
> |
proceed.countDown(); |
237 |
> |
assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS)); |
238 |
> |
assertSame(Boolean.TRUE, f.get()); |
239 |
> |
assertTrue(f.isDone()); |
240 |
> |
assertFalse(f.isCancelled()); |
241 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
242 |
|
} |
243 |
< |
catch (InterruptedException ex) { |
244 |
< |
fail("Unexpected exception"); |
243 |
> |
} |
244 |
> |
|
245 |
> |
/** |
246 |
> |
* an unconfigurable newScheduledThreadPool successfully runs delayed task |
247 |
> |
*/ |
248 |
> |
public void testUnconfigurableScheduledExecutorService() throws Exception { |
249 |
> |
final ScheduledExecutorService p = |
250 |
> |
Executors.unconfigurableScheduledExecutorService |
251 |
> |
(Executors.newScheduledThreadPool(2)); |
252 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
253 |
> |
final CountDownLatch proceed = new CountDownLatch(1); |
254 |
> |
final Runnable task = new CheckedRunnable() { |
255 |
> |
public void realRun() { |
256 |
> |
await(proceed); |
257 |
> |
}}; |
258 |
> |
long startTime = System.nanoTime(); |
259 |
> |
Future f = p.schedule(Executors.callable(task, Boolean.TRUE), |
260 |
> |
timeoutMillis(), MILLISECONDS); |
261 |
> |
assertFalse(f.isDone()); |
262 |
> |
proceed.countDown(); |
263 |
> |
assertSame(Boolean.TRUE, f.get(LONG_DELAY_MS, MILLISECONDS)); |
264 |
> |
assertSame(Boolean.TRUE, f.get()); |
265 |
> |
assertTrue(f.isDone()); |
266 |
> |
assertFalse(f.isCancelled()); |
267 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
268 |
|
} |
269 |
|
} |
270 |
|
|
271 |
< |
public void testInvokeRunnable () { |
272 |
< |
try { |
273 |
< |
Executor e = new DirectExecutor(); |
274 |
< |
Task task = new Task(); |
271 |
> |
/** |
272 |
> |
* Future.get on submitted tasks will time out if they compute too long. |
273 |
> |
*/ |
274 |
> |
public void testTimedCallable() throws Exception { |
275 |
> |
final ExecutorService[] executors = { |
276 |
> |
Executors.newSingleThreadExecutor(), |
277 |
> |
Executors.newCachedThreadPool(), |
278 |
> |
Executors.newFixedThreadPool(2), |
279 |
> |
Executors.newScheduledThreadPool(2), |
280 |
> |
}; |
281 |
|
|
282 |
< |
assertFalse("task should not be complete", task.isCompleted()); |
282 |
> |
final Runnable sleeper = new CheckedRunnable() { |
283 |
> |
public void realRun() throws InterruptedException { |
284 |
> |
try { |
285 |
> |
delay(LONG_DELAY_MS); |
286 |
> |
} catch(InterruptedException OK) { |
287 |
> |
} |
288 |
> |
}}; |
289 |
|
|
290 |
< |
Executors.invoke(e, task); |
290 |
> |
List<Thread> threads = new ArrayList<>(); |
291 |
> |
for (final ExecutorService executor : executors) { |
292 |
> |
threads.add(newStartedThread(new CheckedRunnable() { |
293 |
> |
public void realRun() { |
294 |
> |
Future future = executor.submit(sleeper); |
295 |
> |
assertFutureTimesOut(future); |
296 |
> |
}})); |
297 |
> |
} |
298 |
> |
for (Thread thread : threads) |
299 |
> |
awaitTermination(thread); |
300 |
> |
for (ExecutorService executor : executors) |
301 |
> |
executor.shutdownNow(); // assumes shutdownNow interrupts threads |
302 |
> |
for (ExecutorService executor : executors) |
303 |
> |
joinPool(executor); |
304 |
> |
} |
305 |
|
|
306 |
< |
assertTrue("task should be complete", task.isCompleted()); |
307 |
< |
} |
308 |
< |
catch (ExecutionException ex) { |
309 |
< |
fail("Unexpected exception"); |
310 |
< |
} |
311 |
< |
catch (InterruptedException ex) { |
312 |
< |
fail("Unexpected exception"); |
306 |
> |
/** |
307 |
> |
* ThreadPoolExecutor using defaultThreadFactory has |
308 |
> |
* specified group, priority, daemon status, and name |
309 |
> |
*/ |
310 |
> |
public void testDefaultThreadFactory() throws Exception { |
311 |
> |
final ThreadGroup egroup = Thread.currentThread().getThreadGroup(); |
312 |
> |
final CountDownLatch done = new CountDownLatch(1); |
313 |
> |
Runnable r = new CheckedRunnable() { |
314 |
> |
public void realRun() { |
315 |
> |
try { |
316 |
> |
Thread current = Thread.currentThread(); |
317 |
> |
assertFalse(current.isDaemon()); |
318 |
> |
assertTrue(current.getPriority() <= Thread.NORM_PRIORITY); |
319 |
> |
SecurityManager s = System.getSecurityManager(); |
320 |
> |
assertSame(current.getThreadGroup(), |
321 |
> |
(s == null) ? egroup : s.getThreadGroup()); |
322 |
> |
assertTrue(current.getName().endsWith("thread-1")); |
323 |
> |
} catch (SecurityException ok) { |
324 |
> |
// Also pass if not allowed to change setting |
325 |
> |
} |
326 |
> |
done.countDown(); |
327 |
> |
}}; |
328 |
> |
ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory()); |
329 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
330 |
> |
e.execute(r); |
331 |
> |
await(done); |
332 |
|
} |
333 |
|
} |
334 |
|
|
335 |
< |
public void testExecuteCallable () { |
336 |
< |
try { |
337 |
< |
Executor e = new DirectExecutor(); |
338 |
< |
Future<String> future = Executors.execute(e, new StringTask()); |
339 |
< |
String result = future.get(); |
335 |
> |
/** |
336 |
> |
* ThreadPoolExecutor using privilegedThreadFactory has |
337 |
> |
* specified group, priority, daemon status, name, |
338 |
> |
* access control context and context class loader |
339 |
> |
*/ |
340 |
> |
public void testPrivilegedThreadFactory() throws Exception { |
341 |
> |
final CountDownLatch done = new CountDownLatch(1); |
342 |
> |
Runnable r = new CheckedRunnable() { |
343 |
> |
public void realRun() throws Exception { |
344 |
> |
final ThreadGroup egroup = Thread.currentThread().getThreadGroup(); |
345 |
> |
final ClassLoader thisccl = Thread.currentThread().getContextClassLoader(); |
346 |
> |
final AccessControlContext thisacc = AccessController.getContext(); |
347 |
> |
Runnable r = new CheckedRunnable() { |
348 |
> |
public void realRun() { |
349 |
> |
Thread current = Thread.currentThread(); |
350 |
> |
assertFalse(current.isDaemon()); |
351 |
> |
assertTrue(current.getPriority() <= Thread.NORM_PRIORITY); |
352 |
> |
SecurityManager s = System.getSecurityManager(); |
353 |
> |
assertSame(current.getThreadGroup(), |
354 |
> |
(s == null) ? egroup : s.getThreadGroup()); |
355 |
> |
assertTrue(current.getName().endsWith("thread-1")); |
356 |
> |
assertSame(thisccl, current.getContextClassLoader()); |
357 |
> |
assertEquals(thisacc, AccessController.getContext()); |
358 |
> |
done.countDown(); |
359 |
> |
}}; |
360 |
> |
ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory()); |
361 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
362 |
> |
e.execute(r); |
363 |
> |
await(done); |
364 |
> |
} |
365 |
> |
}}; |
366 |
> |
|
367 |
> |
runWithPermissions(r, |
368 |
> |
new RuntimePermission("getClassLoader"), |
369 |
> |
new RuntimePermission("setContextClassLoader"), |
370 |
> |
new RuntimePermission("modifyThread")); |
371 |
> |
} |
372 |
|
|
373 |
< |
assertSame("should return test string", TEST_STRING, result); |
373 |
> |
boolean haveCCLPermissions() { |
374 |
> |
SecurityManager sm = System.getSecurityManager(); |
375 |
> |
if (sm != null) { |
376 |
> |
try { |
377 |
> |
sm.checkPermission(new RuntimePermission("setContextClassLoader")); |
378 |
> |
sm.checkPermission(new RuntimePermission("getClassLoader")); |
379 |
> |
} catch (AccessControlException e) { |
380 |
> |
return false; |
381 |
> |
} |
382 |
|
} |
383 |
< |
catch (ExecutionException ex) { |
384 |
< |
fail("Unexpected exception"); |
383 |
> |
return true; |
384 |
> |
} |
385 |
> |
|
386 |
> |
void checkCCL() { |
387 |
> |
SecurityManager sm = System.getSecurityManager(); |
388 |
> |
if (sm != null) { |
389 |
> |
sm.checkPermission(new RuntimePermission("setContextClassLoader")); |
390 |
> |
sm.checkPermission(new RuntimePermission("getClassLoader")); |
391 |
|
} |
392 |
< |
catch (InterruptedException ex) { |
393 |
< |
fail("Unexpected exception"); |
392 |
> |
} |
393 |
> |
|
394 |
> |
class CheckCCL implements Callable<Object> { |
395 |
> |
public Object call() { |
396 |
> |
checkCCL(); |
397 |
> |
return null; |
398 |
|
} |
399 |
|
} |
400 |
|
|
401 |
< |
public void testInvokeCallable () { |
402 |
< |
try { |
403 |
< |
Executor e = new DirectExecutor(); |
404 |
< |
String result = Executors.invoke(e, new StringTask()); |
401 |
> |
/** |
402 |
> |
* Without class loader permissions, creating |
403 |
> |
* privilegedCallableUsingCurrentClassLoader throws ACE |
404 |
> |
*/ |
405 |
> |
public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() { |
406 |
> |
Runnable r = new CheckedRunnable() { |
407 |
> |
public void realRun() throws Exception { |
408 |
> |
if (System.getSecurityManager() == null) |
409 |
> |
return; |
410 |
> |
try { |
411 |
> |
Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable()); |
412 |
> |
shouldThrow(); |
413 |
> |
} catch (AccessControlException success) {} |
414 |
> |
}}; |
415 |
|
|
416 |
< |
assertSame("should return test string", TEST_STRING, result); |
258 |
< |
} |
259 |
< |
catch (ExecutionException ex) { |
260 |
< |
fail("Unexpected exception" ); |
261 |
< |
} |
262 |
< |
catch (InterruptedException ex) { |
263 |
< |
fail("Unexpected exception"); |
264 |
< |
} |
416 |
> |
runWithoutPermissions(r); |
417 |
|
} |
418 |
|
|
419 |
< |
private static final String TEST_STRING = "a test string"; |
419 |
> |
/** |
420 |
> |
* With class loader permissions, calling |
421 |
> |
* privilegedCallableUsingCurrentClassLoader does not throw ACE |
422 |
> |
*/ |
423 |
> |
public void testPrivilegedCallableUsingCCLWithPrivs() throws Exception { |
424 |
> |
Runnable r = new CheckedRunnable() { |
425 |
> |
public void realRun() throws Exception { |
426 |
> |
Executors.privilegedCallableUsingCurrentClassLoader |
427 |
> |
(new NoOpCallable()) |
428 |
> |
.call(); |
429 |
> |
}}; |
430 |
> |
|
431 |
> |
runWithPermissions(r, |
432 |
> |
new RuntimePermission("getClassLoader"), |
433 |
> |
new RuntimePermission("setContextClassLoader")); |
434 |
> |
} |
435 |
|
|
436 |
< |
private static class Task implements Runnable { |
437 |
< |
public void run() { completed = true; } |
438 |
< |
public boolean isCompleted() { return completed; } |
439 |
< |
public void reset() { completed = false; } |
440 |
< |
private boolean completed = false; |
436 |
> |
/** |
437 |
> |
* Without permissions, calling privilegedCallable throws ACE |
438 |
> |
*/ |
439 |
> |
public void testPrivilegedCallableWithNoPrivs() throws Exception { |
440 |
> |
// Avoid classloader-related SecurityExceptions in swingui.TestRunner |
441 |
> |
Executors.privilegedCallable(new CheckCCL()); |
442 |
> |
|
443 |
> |
Runnable r = new CheckedRunnable() { |
444 |
> |
public void realRun() throws Exception { |
445 |
> |
if (System.getSecurityManager() == null) |
446 |
> |
return; |
447 |
> |
Callable task = Executors.privilegedCallable(new CheckCCL()); |
448 |
> |
try { |
449 |
> |
task.call(); |
450 |
> |
shouldThrow(); |
451 |
> |
} catch (AccessControlException success) {} |
452 |
> |
}}; |
453 |
> |
|
454 |
> |
runWithoutPermissions(r); |
455 |
> |
|
456 |
> |
// It seems rather difficult to test that the |
457 |
> |
// AccessControlContext of the privilegedCallable is used |
458 |
> |
// instead of its caller. Below is a failed attempt to do |
459 |
> |
// that, which does not work because the AccessController |
460 |
> |
// cannot capture the internal state of the current Policy. |
461 |
> |
// It would be much more work to differentiate based on, |
462 |
> |
// e.g. CodeSource. |
463 |
> |
|
464 |
> |
// final AccessControlContext[] noprivAcc = new AccessControlContext[1]; |
465 |
> |
// final Callable[] task = new Callable[1]; |
466 |
> |
|
467 |
> |
// runWithPermissions |
468 |
> |
// (new CheckedRunnable() { |
469 |
> |
// public void realRun() { |
470 |
> |
// if (System.getSecurityManager() == null) |
471 |
> |
// return; |
472 |
> |
// noprivAcc[0] = AccessController.getContext(); |
473 |
> |
// task[0] = Executors.privilegedCallable(new CheckCCL()); |
474 |
> |
// try { |
475 |
> |
// AccessController.doPrivileged(new PrivilegedAction<Void>() { |
476 |
> |
// public Void run() { |
477 |
> |
// checkCCL(); |
478 |
> |
// return null; |
479 |
> |
// }}, noprivAcc[0]); |
480 |
> |
// shouldThrow(); |
481 |
> |
// } catch (AccessControlException success) {} |
482 |
> |
// }}); |
483 |
> |
|
484 |
> |
// runWithPermissions |
485 |
> |
// (new CheckedRunnable() { |
486 |
> |
// public void realRun() throws Exception { |
487 |
> |
// if (System.getSecurityManager() == null) |
488 |
> |
// return; |
489 |
> |
// // Verify that we have an underprivileged ACC |
490 |
> |
// try { |
491 |
> |
// AccessController.doPrivileged(new PrivilegedAction<Void>() { |
492 |
> |
// public Void run() { |
493 |
> |
// checkCCL(); |
494 |
> |
// return null; |
495 |
> |
// }}, noprivAcc[0]); |
496 |
> |
// shouldThrow(); |
497 |
> |
// } catch (AccessControlException success) {} |
498 |
> |
|
499 |
> |
// try { |
500 |
> |
// task[0].call(); |
501 |
> |
// shouldThrow(); |
502 |
> |
// } catch (AccessControlException success) {} |
503 |
> |
// }}, |
504 |
> |
// new RuntimePermission("getClassLoader"), |
505 |
> |
// new RuntimePermission("setContextClassLoader")); |
506 |
> |
} |
507 |
> |
|
508 |
> |
/** |
509 |
> |
* With permissions, calling privilegedCallable succeeds |
510 |
> |
*/ |
511 |
> |
public void testPrivilegedCallableWithPrivs() throws Exception { |
512 |
> |
Runnable r = new CheckedRunnable() { |
513 |
> |
public void realRun() throws Exception { |
514 |
> |
Executors.privilegedCallable(new CheckCCL()).call(); |
515 |
> |
}}; |
516 |
> |
|
517 |
> |
runWithPermissions(r, |
518 |
> |
new RuntimePermission("getClassLoader"), |
519 |
> |
new RuntimePermission("setContextClassLoader")); |
520 |
|
} |
521 |
|
|
522 |
< |
private static class StringTask implements Callable<String> { |
523 |
< |
public String call() { return TEST_STRING; } |
522 |
> |
/** |
523 |
> |
* callable(Runnable) returns null when called |
524 |
> |
*/ |
525 |
> |
public void testCallable1() throws Exception { |
526 |
> |
Callable c = Executors.callable(new NoOpRunnable()); |
527 |
> |
assertNull(c.call()); |
528 |
|
} |
529 |
|
|
530 |
< |
static class DirectExecutor implements Executor { |
531 |
< |
public void execute(Runnable r) { |
532 |
< |
r.run(); |
533 |
< |
} |
530 |
> |
/** |
531 |
> |
* callable(Runnable, result) returns result when called |
532 |
> |
*/ |
533 |
> |
public void testCallable2() throws Exception { |
534 |
> |
Callable c = Executors.callable(new NoOpRunnable(), one); |
535 |
> |
assertSame(one, c.call()); |
536 |
> |
} |
537 |
> |
|
538 |
> |
/** |
539 |
> |
* callable(PrivilegedAction) returns its result when called |
540 |
> |
*/ |
541 |
> |
public void testCallable3() throws Exception { |
542 |
> |
Callable c = Executors.callable(new PrivilegedAction() { |
543 |
> |
public Object run() { return one; }}); |
544 |
> |
assertSame(one, c.call()); |
545 |
|
} |
546 |
|
|
547 |
|
/** |
548 |
< |
* Check that timeouts from execute will time out if they compute |
288 |
< |
* too long. |
548 |
> |
* callable(PrivilegedExceptionAction) returns its result when called |
549 |
|
*/ |
550 |
+ |
public void testCallable4() throws Exception { |
551 |
+ |
Callable c = Executors.callable(new PrivilegedExceptionAction() { |
552 |
+ |
public Object run() { return one; }}); |
553 |
+ |
assertSame(one, c.call()); |
554 |
+ |
} |
555 |
|
|
556 |
< |
public void testTimedCallable() { |
557 |
< |
int N = 10000; |
558 |
< |
ExecutorService executor = Executors.newSingleThreadExecutor(); |
559 |
< |
List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N); |
556 |
> |
/** |
557 |
> |
* callable(null Runnable) throws NPE |
558 |
> |
*/ |
559 |
> |
public void testCallableNPE1() { |
560 |
|
try { |
561 |
< |
long startTime = System.currentTimeMillis(); |
562 |
< |
|
563 |
< |
long i = 0; |
299 |
< |
while (tasks.size() < N) { |
300 |
< |
tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1)); |
301 |
< |
i += 10; |
302 |
< |
} |
303 |
< |
|
304 |
< |
int iters = 0; |
305 |
< |
BigInteger sum = BigInteger.ZERO; |
306 |
< |
for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) { |
307 |
< |
try { |
308 |
< |
++iters; |
309 |
< |
sum = sum.add(it.next().call()); |
310 |
< |
} |
311 |
< |
catch (TimeoutException success) { |
312 |
< |
assertTrue(iters > 0); |
313 |
< |
return; |
314 |
< |
} |
315 |
< |
catch (Exception e) { |
316 |
< |
fail("unexpected exception: " + e); |
317 |
< |
} |
318 |
< |
} |
319 |
< |
// if by chance we didn't ever time out, total time must be small |
320 |
< |
long elapsed = System.currentTimeMillis() - startTime; |
321 |
< |
assertTrue(elapsed < N); |
322 |
< |
} |
323 |
< |
finally { |
324 |
< |
joinPool(executor); |
325 |
< |
} |
561 |
> |
Callable unused = Executors.callable((Runnable) null); |
562 |
> |
shouldThrow(); |
563 |
> |
} catch (NullPointerException success) {} |
564 |
|
} |
565 |
|
|
566 |
< |
|
567 |
< |
static class TimedCallable<T> implements Callable<T> { |
568 |
< |
private final Executor exec; |
569 |
< |
private final Callable<T> func; |
570 |
< |
private final long msecs; |
571 |
< |
|
572 |
< |
TimedCallable(Executor exec, Callable<T> func, long msecs) { |
573 |
< |
this.exec = exec; |
336 |
< |
this.func = func; |
337 |
< |
this.msecs = msecs; |
338 |
< |
} |
339 |
< |
|
340 |
< |
public T call() throws Exception { |
341 |
< |
Future<T> ftask = Executors.execute(exec, func); |
342 |
< |
try { |
343 |
< |
return ftask.get(msecs, TimeUnit.MILLISECONDS); |
344 |
< |
} finally { |
345 |
< |
ftask.cancel(true); |
346 |
< |
} |
347 |
< |
} |
566 |
> |
/** |
567 |
> |
* callable(null, result) throws NPE |
568 |
> |
*/ |
569 |
> |
public void testCallableNPE2() { |
570 |
> |
try { |
571 |
> |
Callable unused = Executors.callable((Runnable) null, one); |
572 |
> |
shouldThrow(); |
573 |
> |
} catch (NullPointerException success) {} |
574 |
|
} |
575 |
|
|
576 |
+ |
/** |
577 |
+ |
* callable(null PrivilegedAction) throws NPE |
578 |
+ |
*/ |
579 |
+ |
public void testCallableNPE3() { |
580 |
+ |
try { |
581 |
+ |
Callable unused = Executors.callable((PrivilegedAction) null); |
582 |
+ |
shouldThrow(); |
583 |
+ |
} catch (NullPointerException success) {} |
584 |
+ |
} |
585 |
|
|
586 |
< |
private static class Fib implements Callable<BigInteger> { |
587 |
< |
private final BigInteger n; |
588 |
< |
Fib(long n) { |
589 |
< |
if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n); |
590 |
< |
this.n = BigInteger.valueOf(n); |
591 |
< |
} |
592 |
< |
public BigInteger call() { |
593 |
< |
BigInteger f1 = BigInteger.ONE; |
594 |
< |
BigInteger f2 = f1; |
595 |
< |
for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) { |
596 |
< |
BigInteger t = f1.add(f2); |
597 |
< |
f1 = f2; |
598 |
< |
f2 = t; |
599 |
< |
} |
600 |
< |
return f1; |
586 |
> |
/** |
587 |
> |
* callable(null PrivilegedExceptionAction) throws NPE |
588 |
> |
*/ |
589 |
> |
public void testCallableNPE4() { |
590 |
> |
try { |
591 |
> |
Callable unused = Executors.callable((PrivilegedExceptionAction) null); |
592 |
> |
shouldThrow(); |
593 |
> |
} catch (NullPointerException success) {} |
594 |
> |
} |
595 |
> |
|
596 |
> |
/** |
597 |
> |
* callable(runnable, x).toString() contains toString of wrapped task |
598 |
> |
*/ |
599 |
> |
public void testCallable_withResult_toString() { |
600 |
> |
if (testImplementationDetails) { |
601 |
> |
Runnable r = () -> {}; |
602 |
> |
Callable<String> c = Executors.callable(r, ""); |
603 |
> |
assertEquals( |
604 |
> |
identityString(c) + "[Wrapped task = " + r.toString() + "]", |
605 |
> |
c.toString()); |
606 |
|
} |
607 |
< |
}; |
607 |
> |
} |
608 |
|
|
609 |
+ |
/** |
610 |
+ |
* callable(runnable).toString() contains toString of wrapped task |
611 |
+ |
*/ |
612 |
+ |
public void testCallable_toString() { |
613 |
+ |
if (testImplementationDetails) { |
614 |
+ |
Runnable r = () -> {}; |
615 |
+ |
Callable<Object> c = Executors.callable(r); |
616 |
+ |
assertEquals( |
617 |
+ |
identityString(c) + "[Wrapped task = " + r.toString() + "]", |
618 |
+ |
c.toString()); |
619 |
+ |
} |
620 |
+ |
} |
621 |
|
|
622 |
+ |
/** |
623 |
+ |
* privilegedCallable(callable).toString() contains toString of wrapped task |
624 |
+ |
*/ |
625 |
+ |
public void testPrivilegedCallable_toString() { |
626 |
+ |
if (testImplementationDetails) { |
627 |
+ |
Callable<String> c = () -> ""; |
628 |
+ |
Callable<String> priv = Executors.privilegedCallable(c); |
629 |
+ |
assertEquals( |
630 |
+ |
identityString(priv) + "[Wrapped task = " + c.toString() + "]", |
631 |
+ |
priv.toString()); |
632 |
+ |
} |
633 |
+ |
} |
634 |
|
|
635 |
+ |
/** |
636 |
+ |
* privilegedCallableUsingCurrentClassLoader(callable).toString() |
637 |
+ |
* contains toString of wrapped task |
638 |
+ |
*/ |
639 |
+ |
public void testPrivilegedCallableUsingCurrentClassLoader_toString() { |
640 |
+ |
if (testImplementationDetails) { |
641 |
+ |
Callable<String> c = () -> ""; |
642 |
+ |
Callable<String> priv = Executors.privilegedCallableUsingCurrentClassLoader(c); |
643 |
+ |
assertEquals( |
644 |
+ |
identityString(priv) + "[Wrapped task = " + c.toString() + "]", |
645 |
+ |
priv.toString()); |
646 |
+ |
} |
647 |
+ |
} |
648 |
|
} |