--- jsr166/src/test/tck/ThreadPoolExecutorTest.java	2003/09/25 11:02:41	1.6
+++ jsr166/src/test/tck/ThreadPoolExecutorTest.java	2010/10/09 19:30:35	1.35
@@ -1,230 +1,366 @@
 /*
- * Written by members of JCP JSR-166 Expert Group and released to the
- * public domain. Use, modify, and redistribute this code in any way
- * without acknowledgement. Other contributors include Andrew Wright,
- * Jeffrey Hayes, Pat Fischer, Mike Judd.
+ * Written by Doug Lea with assistance from members of JCP JSR-166
+ * Expert Group and released to the public domain, as explained at
+ * http://creativecommons.org/licenses/publicdomain
+ * Other contributors include Andrew Wright, Jeffrey Hayes,
+ * Pat Fisher, Mike Judd.
  */
 
 import java.util.concurrent.*;
+import static java.util.concurrent.TimeUnit.MILLISECONDS;
+import java.util.concurrent.atomic.*;
 import junit.framework.*;
-import java.util.List;
+import java.util.*;
 
 public class ThreadPoolExecutorTest extends JSR166TestCase {
     public static void main(String[] args) {
-	junit.textui.TestRunner.run (suite());	
+        junit.textui.TestRunner.run(suite());
     }
     public static Test suite() {
         return new TestSuite(ThreadPoolExecutorTest.class);
     }
-    
-    /**
-     * For use as ThreadFactory in constructors
-     */
-    static class MyThreadFactory implements ThreadFactory{
-        public Thread newThread(Runnable r){
-            return new Thread(r);
-        }   
+
+    static class ExtendedTPE extends ThreadPoolExecutor {
+        volatile boolean beforeCalled = false;
+        volatile boolean afterCalled = false;
+        volatile boolean terminatedCalled = false;
+        public ExtendedTPE() {
+            super(1, 1, LONG_DELAY_MS, MILLISECONDS, new SynchronousQueue<Runnable>());
+        }
+        protected void beforeExecute(Thread t, Runnable r) {
+            beforeCalled = true;
+        }
+        protected void afterExecute(Runnable r, Throwable t) {
+            afterCalled = true;
+        }
+        protected void terminated() {
+            terminatedCalled = true;
+        }
     }
 
-    /**
-     * For use as RejectedExecutionHandler in constructors
-     */
-    static class MyREHandler implements RejectedExecutionHandler{
-        public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){} 
+    static class FailingThreadFactory implements ThreadFactory {
+        int calls = 0;
+        public Thread newThread(Runnable r) {
+            if (++calls > 1) return null;
+            return new Thread(r);
+        }
     }
- 
+
+
     /**
-     *   execute successfully executes a runnable
+     * execute successfully executes a runnable
      */
-    public void testExecute() {
-        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+    public void testExecute() throws InterruptedException {
+        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
         try {
-            p1.execute(new Runnable() {
-                    public void run() {
-                        try {
-                            Thread.sleep(SHORT_DELAY_MS);
-                        } catch(InterruptedException e){
-                            threadUnexpectedException();
-                        }
-                    }
-                });
-	    Thread.sleep(SMALL_DELAY_MS);
-        } catch(InterruptedException e){
-            unexpectedException();
-        } 
-        joinPool(p1);
+            p1.execute(new ShortRunnable());
+            Thread.sleep(SMALL_DELAY_MS);
+        } finally {
+            joinPool(p1);
+        }
     }
 
     /**
-     *  getActiveCount increases but doesn't overestimate, when a
-     *  thread becomes active
+     * getActiveCount increases but doesn't overestimate, when a
+     * thread becomes active
      */
-    public void testGetActiveCount() {
-        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+    public void testGetActiveCount() throws InterruptedException {
+        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
         assertEquals(0, p2.getActiveCount());
         p2.execute(new MediumRunnable());
-        try {
-            Thread.sleep(SHORT_DELAY_MS);
-        } catch(Exception e){
-            unexpectedException();
-        }
+        Thread.sleep(SHORT_DELAY_MS);
         assertEquals(1, p2.getActiveCount());
         joinPool(p2);
     }
-    
+
+    /**
+     * prestartCoreThread starts a thread if under corePoolSize, else doesn't
+     */
+    public void testPrestartCoreThread() {
+        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        assertEquals(0, p2.getPoolSize());
+        assertTrue(p2.prestartCoreThread());
+        assertEquals(1, p2.getPoolSize());
+        assertTrue(p2.prestartCoreThread());
+        assertEquals(2, p2.getPoolSize());
+        assertFalse(p2.prestartCoreThread());
+        assertEquals(2, p2.getPoolSize());
+        joinPool(p2);
+    }
+
+    /**
+     * prestartAllCoreThreads starts all corePoolSize threads
+     */
+    public void testPrestartAllCoreThreads() {
+        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        assertEquals(0, p2.getPoolSize());
+        p2.prestartAllCoreThreads();
+        assertEquals(2, p2.getPoolSize());
+        p2.prestartAllCoreThreads();
+        assertEquals(2, p2.getPoolSize());
+        joinPool(p2);
+    }
+
     /**
-     *   getCompletedTaskCount increases, but doesn't overestimate,
-     *   when tasks complete
+     * getCompletedTaskCount increases, but doesn't overestimate,
+     * when tasks complete
      */
-    public void testGetCompletedTaskCount() {
-        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+    public void testGetCompletedTaskCount() throws InterruptedException {
+        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
         assertEquals(0, p2.getCompletedTaskCount());
         p2.execute(new ShortRunnable());
-        try {
-            Thread.sleep(MEDIUM_DELAY_MS);
-        } catch(Exception e){
-            unexpectedException();
-        }
+        Thread.sleep(SMALL_DELAY_MS);
         assertEquals(1, p2.getCompletedTaskCount());
-        p2.shutdown();
+        try { p2.shutdown(); } catch (SecurityException ok) { return; }
         joinPool(p2);
     }
-    
+
     /**
-     *   getCorePoolSize returns size given in constructor if not otherwise set
+     * getCorePoolSize returns size given in constructor if not otherwise set
      */
     public void testGetCorePoolSize() {
-        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
         assertEquals(1, p1.getCorePoolSize());
         joinPool(p1);
     }
-    
+
     /**
-     *   getKeepAliveTime returns value given in constructor if not otherwise set
+     * getKeepAliveTime returns value given in constructor if not otherwise set
      */
     public void testGetKeepAliveTime() {
-        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, 1000, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, 1000, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
         assertEquals(1, p2.getKeepAliveTime(TimeUnit.SECONDS));
         joinPool(p2);
     }
-    
+
+
+    /**
+     * getThreadFactory returns factory in constructor if not set
+     */
+    public void testGetThreadFactory() {
+        ThreadFactory tf = new SimpleThreadFactory();
+        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10), tf, new NoOpREHandler());
+        assertSame(tf, p.getThreadFactory());
+        joinPool(p);
+    }
+
     /**
-     *   getLargestPoolSize increases, but doesn't overestimate, when
-     *   multiple threads active
+     * setThreadFactory sets the thread factory returned by getThreadFactory
      */
-    public void testGetLargestPoolSize() {
-        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+    public void testSetThreadFactory() {
+        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        ThreadFactory tf = new SimpleThreadFactory();
+        p.setThreadFactory(tf);
+        assertSame(tf, p.getThreadFactory());
+        joinPool(p);
+    }
+
+
+    /**
+     * setThreadFactory(null) throws NPE
+     */
+    public void testSetThreadFactoryNull() {
+        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
         try {
-            assertEquals(0, p2.getLargestPoolSize());
-            p2.execute(new MediumRunnable());
-            p2.execute(new MediumRunnable());
-            Thread.sleep(SHORT_DELAY_MS);
-            assertEquals(2, p2.getLargestPoolSize());
-        } catch(Exception e){
-            unexpectedException();
-        } 
+            p.setThreadFactory(null);
+            shouldThrow();
+        } catch (NullPointerException success) {
+        } finally {
+            joinPool(p);
+        }
+    }
+
+    /**
+     * getRejectedExecutionHandler returns handler in constructor if not set
+     */
+    public void testGetRejectedExecutionHandler() {
+        RejectedExecutionHandler h = new NoOpREHandler();
+        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10), h);
+        assertSame(h, p.getRejectedExecutionHandler());
+        joinPool(p);
+    }
+
+    /**
+     * setRejectedExecutionHandler sets the handler returned by
+     * getRejectedExecutionHandler
+     */
+    public void testSetRejectedExecutionHandler() {
+        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        RejectedExecutionHandler h = new NoOpREHandler();
+        p.setRejectedExecutionHandler(h);
+        assertSame(h, p.getRejectedExecutionHandler());
+        joinPool(p);
+    }
+
+
+    /**
+     * setRejectedExecutionHandler(null) throws NPE
+     */
+    public void testSetRejectedExecutionHandlerNull() {
+        ThreadPoolExecutor p = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            p.setRejectedExecutionHandler(null);
+            shouldThrow();
+        } catch (NullPointerException success) {
+        } finally {
+            joinPool(p);
+        }
+    }
+
+
+    /**
+     * getLargestPoolSize increases, but doesn't overestimate, when
+     * multiple threads active
+     */
+    public void testGetLargestPoolSize() throws InterruptedException {
+        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        assertEquals(0, p2.getLargestPoolSize());
+        p2.execute(new MediumRunnable());
+        p2.execute(new MediumRunnable());
+        Thread.sleep(SHORT_DELAY_MS);
+        assertEquals(2, p2.getLargestPoolSize());
         joinPool(p2);
     }
-    
+
     /**
-     *   getMaximumPoolSize returns value given in constructor if not
-     *   otherwise set
+     * getMaximumPoolSize returns value given in constructor if not
+     * otherwise set
      */
     public void testGetMaximumPoolSize() {
-        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
         assertEquals(2, p2.getMaximumPoolSize());
         joinPool(p2);
     }
-    
+
     /**
-     *   getPoolSize increases, but doesn't overestimate, when threads
-     *   become active
+     * getPoolSize increases, but doesn't overestimate, when threads
+     * become active
      */
     public void testGetPoolSize() {
-        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
         assertEquals(0, p1.getPoolSize());
         p1.execute(new MediumRunnable());
         assertEquals(1, p1.getPoolSize());
         joinPool(p1);
     }
-    
+
     /**
-     *   getTaskCount increases, but doesn't overestimate, when tasks submitted
+     * getTaskCount increases, but doesn't overestimate, when tasks submitted
      */
-    public void testGetTaskCount() {
-        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
-        try {
-            assertEquals(0, p1.getTaskCount());
-            p1.execute(new MediumRunnable());
-            Thread.sleep(SHORT_DELAY_MS);
-            assertEquals(1, p1.getTaskCount());
-        } catch(Exception e){
-            unexpectedException();
-        } 
+    public void testGetTaskCount() throws InterruptedException {
+        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        assertEquals(0, p1.getTaskCount());
+        p1.execute(new MediumRunnable());
+        Thread.sleep(SHORT_DELAY_MS);
+        assertEquals(1, p1.getTaskCount());
         joinPool(p1);
     }
-    
+
     /**
-     *   isShutDown is false before shutdown, true after
+     * isShutDown is false before shutdown, true after
      */
     public void testIsShutdown() {
-        
-	ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+
+        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
         assertFalse(p1.isShutdown());
-        p1.shutdown();
-	assertTrue(p1.isShutdown());
+        try { p1.shutdown(); } catch (SecurityException ok) { return; }
+        assertTrue(p1.isShutdown());
         joinPool(p1);
     }
 
-        
+
     /**
-     *  isTerminated is false before termination, true after
+     * isTerminated is false before termination, true after
      */
-    public void testIsTerminated() {
-	ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+    public void testIsTerminated() throws InterruptedException {
+        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
         assertFalse(p1.isTerminated());
         try {
             p1.execute(new MediumRunnable());
         } finally {
-            p1.shutdown();
+            try { p1.shutdown(); } catch (SecurityException ok) { return; }
         }
-	try {
-	    assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
-            assertTrue(p1.isTerminated());
-	} catch(Exception e){
-            unexpectedException();
-        }	
+        assertTrue(p1.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
+        assertTrue(p1.isTerminated());
     }
 
     /**
-     *  isTerminating is not true when running or when terminated
+     * isTerminating is not true when running or when terminated
      */
-    public void testIsTerminating() {
-	ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+    public void testIsTerminating() throws InterruptedException {
+        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
         assertFalse(p1.isTerminating());
         try {
             p1.execute(new SmallRunnable());
             assertFalse(p1.isTerminating());
         } finally {
-            p1.shutdown();
+            try { p1.shutdown(); } catch (SecurityException ok) { return; }
+        }
+        assertTrue(p1.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
+        assertTrue(p1.isTerminated());
+        assertFalse(p1.isTerminating());
+    }
+
+    /**
+     * getQueue returns the work queue, which contains queued tasks
+     */
+    public void testGetQueue() throws InterruptedException {
+        BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
+        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, q);
+        FutureTask[] tasks = new FutureTask[5];
+        for (int i = 0; i < 5; i++) {
+            tasks[i] = new FutureTask(new MediumPossiblyInterruptedRunnable(), Boolean.TRUE);
+            p1.execute(tasks[i]);
         }
         try {
-	    assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
-            assertTrue(p1.isTerminated());
-            assertFalse(p1.isTerminating());
-	} catch(Exception e){
-            unexpectedException();
-        }	
+            Thread.sleep(SHORT_DELAY_MS);
+            BlockingQueue<Runnable> wq = p1.getQueue();
+            assertSame(q, wq);
+            assertFalse(wq.contains(tasks[0]));
+            assertTrue(wq.contains(tasks[4]));
+            for (int i = 1; i < 5; ++i)
+                tasks[i].cancel(true);
+            p1.shutdownNow();
+        } finally {
+            joinPool(p1);
+        }
+    }
+
+    /**
+     * remove(task) removes queued task, and fails to remove active task
+     */
+    public void testRemove() throws InterruptedException {
+        BlockingQueue<Runnable> q = new ArrayBlockingQueue<Runnable>(10);
+        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, q);
+        FutureTask[] tasks = new FutureTask[5];
+        for (int i = 0; i < 5; i++) {
+            tasks[i] = new FutureTask(new MediumPossiblyInterruptedRunnable(), Boolean.TRUE);
+            p1.execute(tasks[i]);
+        }
+        try {
+            Thread.sleep(SHORT_DELAY_MS);
+            assertFalse(p1.remove(tasks[0]));
+            assertTrue(q.contains(tasks[4]));
+            assertTrue(q.contains(tasks[3]));
+            assertTrue(p1.remove(tasks[4]));
+            assertFalse(p1.remove(tasks[4]));
+            assertFalse(q.contains(tasks[4]));
+            assertTrue(q.contains(tasks[3]));
+            assertTrue(p1.remove(tasks[3]));
+            assertFalse(q.contains(tasks[3]));
+        } finally {
+            joinPool(p1);
+        }
     }
 
     /**
-     *   purge removes cancelled tasks from the queue
+     * purge removes cancelled tasks from the queue
      */
     public void testPurge() {
-        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
-        CancellableTask[] tasks = new CancellableTask[5];
-        for(int i = 0; i < 5; i++){
-            tasks[i] = new CancellableTask(new MediumPossiblyInterruptedRunnable());
+        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        FutureTask[] tasks = new FutureTask[5];
+        for (int i = 0; i < 5; i++) {
+            tasks[i] = new FutureTask(new MediumPossiblyInterruptedRunnable(), Boolean.TRUE);
             p1.execute(tasks[i]);
         }
         tasks[4].cancel(true);
@@ -236,463 +372,1111 @@ public class ThreadPoolExecutorTest exte
     }
 
     /**
-     *  shutDownNow returns a list containing tasks that were not run
+     * shutDownNow returns a list containing tasks that were not run
      */
     public void testShutDownNow() {
-	ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
         List l;
         try {
-            for(int i = 0; i < 5; i++)
+            for (int i = 0; i < 5; i++)
                 p1.execute(new MediumPossiblyInterruptedRunnable());
         }
         finally {
-            l = p1.shutdownNow();
+            try {
+                l = p1.shutdownNow();
+            } catch (SecurityException ok) { return; }
         }
-	assertTrue(p1.isShutdown());
-	assertTrue(l.size() <= 4);
+        assertTrue(p1.isShutdown());
+        assertTrue(l.size() <= 4);
     }
 
     // Exception Tests
-    
 
-    /** 
-     * Constructor throws if corePoolSize argument is less than zero 
+
+    /**
+     * Constructor throws if corePoolSize argument is less than zero
      */
     public void testConstructor1() {
         try {
-            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
-    
-    /** 
-     * Constructor throws if maximumPoolSize is less than zero 
+
+    /**
+     * Constructor throws if maximumPoolSize is less than zero
      */
     public void testConstructor2() {
         try {
-            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
-    
-    /** 
-     * Constructor throws if maximumPoolSize is equal to zero 
+
+    /**
+     * Constructor throws if maximumPoolSize is equal to zero
      */
     public void testConstructor3() {
         try {
-            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if keepAliveTime is less than zero 
+    /**
+     * Constructor throws if keepAliveTime is less than zero
      */
     public void testConstructor4() {
         try {
-            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+            new ThreadPoolExecutor(1,2,-1L,MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if corePoolSize is greater than the maximumPoolSize 
+    /**
+     * Constructor throws if corePoolSize is greater than the maximumPoolSize
      */
     public void testConstructor5() {
         try {
-            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
-	
-    /** 
-     * Constructor throws if workQueue is set to null 
+
+    /**
+     * Constructor throws if workQueue is set to null
      */
-    public void testNullPointerException() {
+    public void testConstructorNullPointerException() {
         try {
-            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null);
+            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,null);
             shouldThrow();
-        }
-        catch (NullPointerException success){}  
+        } catch (NullPointerException success) {}
     }
-    
 
-    
-    /** 
-     * Constructor throws if corePoolSize argument is less than zero 
+
+
+    /**
+     * Constructor throws if corePoolSize argument is less than zero
      */
     public void testConstructor6() {
         try {
-            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
+            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
             shouldThrow();
-        } catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
-    
-    /** 
-     * Constructor throws if maximumPoolSize is less than zero 
+
+    /**
+     * Constructor throws if maximumPoolSize is less than zero
      */
     public void testConstructor7() {
         try {
-            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
+            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if maximumPoolSize is equal to zero 
+    /**
+     * Constructor throws if maximumPoolSize is equal to zero
      */
     public void testConstructor8() {
         try {
-            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
+            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if keepAliveTime is less than zero 
+    /**
+     * Constructor throws if keepAliveTime is less than zero
      */
     public void testConstructor9() {
         try {
-            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
+            new ThreadPoolExecutor(1,2,-1L,MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if corePoolSize is greater than the maximumPoolSize 
+    /**
+     * Constructor throws if corePoolSize is greater than the maximumPoolSize
      */
     public void testConstructor10() {
         try {
-            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory());
+            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory());
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if workQueue is set to null 
+    /**
+     * Constructor throws if workQueue is set to null
      */
-    public void testNullPointerException2() {
+    public void testConstructorNullPointerException2() {
         try {
-            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyThreadFactory());
+            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,null,new SimpleThreadFactory());
             shouldThrow();
-        }
-        catch (NullPointerException success){}  
+        } catch (NullPointerException success) {}
     }
 
-    /** 
-     * Constructor throws if threadFactory is set to null 
+    /**
+     * Constructor throws if threadFactory is set to null
      */
-    public void testNullPointerException3() {
+    public void testConstructorNullPointerException3() {
         try {
             ThreadFactory f = null;
-            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f);
+            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f);
             shouldThrow();
-        }
-        catch (NullPointerException success){}  
+        } catch (NullPointerException success) {}
     }
- 
-    
-    /** 
-     * Constructor throws if corePoolSize argument is less than zero 
+
+
+    /**
+     * Constructor throws if corePoolSize argument is less than zero
      */
     public void testConstructor11() {
         try {
-            new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
+            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if maximumPoolSize is less than zero 
+    /**
+     * Constructor throws if maximumPoolSize is less than zero
      */
     public void testConstructor12() {
         try {
-            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
+            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if maximumPoolSize is equal to zero 
+    /**
+     * Constructor throws if maximumPoolSize is equal to zero
      */
     public void testConstructor13() {
         try {
-            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
+            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if keepAliveTime is less than zero 
+    /**
+     * Constructor throws if keepAliveTime is less than zero
      */
     public void testConstructor14() {
         try {
-            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
+            new ThreadPoolExecutor(1,2,-1L,MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if corePoolSize is greater than the maximumPoolSize 
+    /**
+     * Constructor throws if corePoolSize is greater than the maximumPoolSize
      */
     public void testConstructor15() {
         try {
-            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler());
+            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new NoOpREHandler());
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if workQueue is set to null 
+    /**
+     * Constructor throws if workQueue is set to null
      */
-    public void testNullPointerException4() {
+    public void testConstructorNullPointerException4() {
         try {
-            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyREHandler());
+            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,null,new NoOpREHandler());
             shouldThrow();
-        }
-        catch (NullPointerException success){}  
+        } catch (NullPointerException success) {}
     }
 
-    /** 
-     * Constructor throws if handler is set to null 
+    /**
+     * Constructor throws if handler is set to null
      */
-    public void testNullPointerException5() {
+    public void testConstructorNullPointerException5() {
         try {
             RejectedExecutionHandler r = null;
-            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),r);
+            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),r);
             shouldThrow();
-        }
-        catch (NullPointerException success){}  
+        } catch (NullPointerException success) {}
     }
 
-    
-    /** 
-     * Constructor throws if corePoolSize argument is less than zero 
+
+    /**
+     * Constructor throws if corePoolSize argument is less than zero
      */
     public void testConstructor16() {
         try {
-            new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
+            new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if maximumPoolSize is less than zero 
+    /**
+     * Constructor throws if maximumPoolSize is less than zero
      */
     public void testConstructor17() {
         try {
-            new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
+            new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if maximumPoolSize is equal to zero 
+    /**
+     * Constructor throws if maximumPoolSize is equal to zero
      */
     public void testConstructor18() {
         try {
-            new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
+            new ThreadPoolExecutor(1,0,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if keepAliveTime is less than zero 
+    /**
+     * Constructor throws if keepAliveTime is less than zero
      */
     public void testConstructor19() {
         try {
-            new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
+            new ThreadPoolExecutor(1,2,-1L,MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if corePoolSize is greater than the maximumPoolSize 
+    /**
+     * Constructor throws if corePoolSize is greater than the maximumPoolSize
      */
     public void testConstructor20() {
         try {
-            new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler());
+            new ThreadPoolExecutor(2,1,LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),new NoOpREHandler());
             shouldThrow();
-        }
-        catch (IllegalArgumentException success){}
+        } catch (IllegalArgumentException success) {}
     }
 
-    /** 
-     * Constructor throws if workQueue is set to null 
+    /**
+     * Constructor throws if workQueue is set to null
      */
-    public void testNullPointerException6() {
+    public void testConstructorNullPointerException6() {
         try {
-            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyThreadFactory(),new MyREHandler());
+            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,null,new SimpleThreadFactory(),new NoOpREHandler());
             shouldThrow();
-        }
-        catch (NullPointerException success){}  
+        } catch (NullPointerException success) {}
     }
 
-    /** 
-     * Constructor throws if handler is set to null 
+    /**
+     * Constructor throws if handler is set to null
      */
-    public void testNullPointerException7() {
+    public void testConstructorNullPointerException7() {
         try {
             RejectedExecutionHandler r = null;
-            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),r);
+            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),new SimpleThreadFactory(),r);
             shouldThrow();
-        }
-        catch (NullPointerException success){}  
+        } catch (NullPointerException success) {}
     }
 
-    /** 
-     * Constructor throws if ThreadFactory is set top null 
+    /**
+     * Constructor throws if ThreadFactory is set top null
      */
-    public void testNullPointerException8() {
+    public void testConstructorNullPointerException8() {
         try {
             ThreadFactory f = null;
-            new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f,new MyREHandler());
+            new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f,new NoOpREHandler());
             shouldThrow();
+        } catch (NullPointerException success) {}
+    }
+
+
+    /**
+     * execute throws RejectedExecutionException if saturated.
+     */
+    public void testSaturatedExecute() {
+        ThreadPoolExecutor p =
+            new ThreadPoolExecutor(1, 1,
+                                   LONG_DELAY_MS, MILLISECONDS,
+                                   new ArrayBlockingQueue<Runnable>(1));
+        try {
+            for (int i = 0; i < 2; ++i)
+                p.execute(new MediumRunnable());
+            for (int i = 0; i < 2; ++i) {
+                try {
+                    p.execute(new MediumRunnable());
+                    shouldThrow();
+                } catch (RejectedExecutionException success) {}
+            }
+        } finally {
+            joinPool(p);
         }
-        catch (NullPointerException successdn8){}  
     }
-    
 
     /**
-     *  execute throws RejectedExecutionException if shutdown
+     * executor using CallerRunsPolicy runs task if saturated.
      */
-    public void testRejectedExecutionException() {
-        ThreadPoolExecutor tpe = null;
+    public void testSaturatedExecute2() {
+        RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy();
+        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
         try {
-	    tpe = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(1));
-        } catch(Exception e){}
-        tpe.shutdown();
-	try {
-	    tpe.execute(new NoOpRunnable());
-	    shouldThrow();
-	} catch(RejectedExecutionException success){}
-	
-	joinPool(tpe);
+
+            TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
+            for (int i = 0; i < 5; ++i) {
+                tasks[i] = new TrackedNoOpRunnable();
+            }
+            TrackedLongRunnable mr = new TrackedLongRunnable();
+            p.execute(mr);
+            for (int i = 0; i < 5; ++i) {
+                p.execute(tasks[i]);
+            }
+            for (int i = 1; i < 5; ++i) {
+                assertTrue(tasks[i].done);
+            }
+            try { p.shutdownNow(); } catch (SecurityException ok) { return; }
+        } finally {
+            joinPool(p);
+        }
     }
 
     /**
-     *  execute throws RejectedExecutionException
-     *  if saturated.
+     * executor using DiscardPolicy drops task if saturated.
      */
-    public void testSaturatedExecute() {
-        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(1));
+    public void testSaturatedExecute3() {
+        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy();
+        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
         try {
-            
-            for(int i = 0; i < 5; ++i){
-                p.execute(new MediumRunnable());
+
+            TrackedNoOpRunnable[] tasks = new TrackedNoOpRunnable[5];
+            for (int i = 0; i < 5; ++i) {
+                tasks[i] = new TrackedNoOpRunnable();
+            }
+            p.execute(new TrackedLongRunnable());
+            for (int i = 0; i < 5; ++i) {
+                p.execute(tasks[i]);
             }
+            for (int i = 0; i < 5; ++i) {
+                assertFalse(tasks[i].done);
+            }
+            try { p.shutdownNow(); } catch (SecurityException ok) { return; }
+        } finally {
+            joinPool(p);
+        }
+    }
+
+    /**
+     * executor using DiscardOldestPolicy drops oldest task if saturated.
+     */
+    public void testSaturatedExecute4() {
+        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy();
+        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
+        try {
+            p.execute(new TrackedLongRunnable());
+            TrackedLongRunnable r2 = new TrackedLongRunnable();
+            p.execute(r2);
+            assertTrue(p.getQueue().contains(r2));
+            TrackedNoOpRunnable r3 = new TrackedNoOpRunnable();
+            p.execute(r3);
+            assertFalse(p.getQueue().contains(r2));
+            assertTrue(p.getQueue().contains(r3));
+            try { p.shutdownNow(); } catch (SecurityException ok) { return; }
+        } finally {
+            joinPool(p);
+        }
+    }
+
+    /**
+     * execute throws RejectedExecutionException if shutdown
+     */
+    public void testRejectedExecutionExceptionOnShutdown() {
+        ThreadPoolExecutor tpe =
+            new ThreadPoolExecutor(1,1,LONG_DELAY_MS, MILLISECONDS,new ArrayBlockingQueue<Runnable>(1));
+        try { tpe.shutdown(); } catch (SecurityException ok) { return; }
+        try {
+            tpe.execute(new NoOpRunnable());
             shouldThrow();
-        } catch(RejectedExecutionException success){}
-        joinPool(p);
+        } catch (RejectedExecutionException success) {}
+
+        joinPool(tpe);
+    }
+
+    /**
+     * execute using CallerRunsPolicy drops task on shutdown
+     */
+    public void testCallerRunsOnShutdown() {
+        RejectedExecutionHandler h = new ThreadPoolExecutor.CallerRunsPolicy();
+        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
+
+        try { p.shutdown(); } catch (SecurityException ok) { return; }
+        try {
+            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
+            p.execute(r);
+            assertFalse(r.done);
+        } finally {
+            joinPool(p);
+        }
+    }
+
+    /**
+     * execute using DiscardPolicy drops task on shutdown
+     */
+    public void testDiscardOnShutdown() {
+        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardPolicy();
+        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
+
+        try { p.shutdown(); } catch (SecurityException ok) { return; }
+        try {
+            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
+            p.execute(r);
+            assertFalse(r.done);
+        } finally {
+            joinPool(p);
+        }
     }
 
+
     /**
-     *  execute (null) throws NPE
+     * execute using DiscardOldestPolicy drops task on shutdown
+     */
+    public void testDiscardOldestOnShutdown() {
+        RejectedExecutionHandler h = new ThreadPoolExecutor.DiscardOldestPolicy();
+        ThreadPoolExecutor p = new ThreadPoolExecutor(1,1, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(1), h);
+
+        try { p.shutdown(); } catch (SecurityException ok) { return; }
+        try {
+            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
+            p.execute(r);
+            assertFalse(r.done);
+        } finally {
+            joinPool(p);
+        }
+    }
+
+
+    /**
+     * execute(null) throws NPE
      */
     public void testExecuteNull() {
-        ThreadPoolExecutor tpe = null;
+        ThreadPoolExecutor tpe = new ThreadPoolExecutor(1,2,LONG_DELAY_MS, MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
         try {
-	    tpe = new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
-	    tpe.execute(null);
+            tpe.execute(null);
             shouldThrow();
-	} catch(NullPointerException success){}
-	
-	joinPool(tpe);
+        } catch (NullPointerException success) {}
+
+        joinPool(tpe);
     }
-    
+
     /**
-     *  setCorePoolSize of netaitev value throws IllegalArgumentException
+     * setCorePoolSize of negative value throws IllegalArgumentException
      */
     public void testCorePoolSizeIllegalArgumentException() {
-	ThreadPoolExecutor tpe = null;
-	try {
-	    tpe = new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
-	} catch(Exception e){}
-	try {
-	    tpe.setCorePoolSize(-1);
-	    shouldThrow();
-	} catch(IllegalArgumentException success){
+        ThreadPoolExecutor tpe =
+            new ThreadPoolExecutor(1, 2,
+                                   LONG_DELAY_MS, MILLISECONDS,
+                                   new ArrayBlockingQueue<Runnable>(10));
+        try {
+            tpe.setCorePoolSize(-1);
+            shouldThrow();
+        } catch (IllegalArgumentException success) {
         } finally {
-            tpe.shutdown();
+            try { tpe.shutdown(); } catch (SecurityException ok) { return; }
         }
         joinPool(tpe);
-    }   
+    }
 
     /**
-     *  setMaximumPoolSize(int) throws IllegalArgumentException if
-     *  given a value less the core pool size
-     */  
+     * setMaximumPoolSize(int) throws IllegalArgumentException if
+     * given a value less the core pool size
+     */
     public void testMaximumPoolSizeIllegalArgumentException() {
-        ThreadPoolExecutor tpe = null;
-        try {
-            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
-        } catch(Exception e){}
+        ThreadPoolExecutor tpe =
+            new ThreadPoolExecutor(2, 3,
+                                   LONG_DELAY_MS, MILLISECONDS,
+                                   new ArrayBlockingQueue<Runnable>(10));
         try {
             tpe.setMaximumPoolSize(1);
             shouldThrow();
-        } catch(IllegalArgumentException success){
+        } catch (IllegalArgumentException success) {
         } finally {
-            tpe.shutdown();
+            try { tpe.shutdown(); } catch (SecurityException ok) { return; }
         }
         joinPool(tpe);
     }
-    
+
     /**
-     *  setMaximumPoolSize throws IllegalArgumentException
-     *  if given a negative value
+     * setMaximumPoolSize throws IllegalArgumentException
+     * if given a negative value
      */
     public void testMaximumPoolSizeIllegalArgumentException2() {
-        ThreadPoolExecutor tpe = null;
-        try {
-            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
-        } catch(Exception e){}
+        ThreadPoolExecutor tpe =
+            new ThreadPoolExecutor(2, 3,
+                                   LONG_DELAY_MS, MILLISECONDS,
+                                   new ArrayBlockingQueue<Runnable>(10));
         try {
             tpe.setMaximumPoolSize(-1);
             shouldThrow();
-        } catch(IllegalArgumentException success){
+        } catch (IllegalArgumentException success) {
         } finally {
-            tpe.shutdown();
+            try { tpe.shutdown(); } catch (SecurityException ok) { return; }
         }
         joinPool(tpe);
     }
-    
+
 
     /**
-     *  setKeepAliveTime  throws IllegalArgumentException
-     *  when given a negative value
+     * setKeepAliveTime throws IllegalArgumentException
+     * when given a negative value
      */
     public void testKeepAliveTimeIllegalArgumentException() {
-	ThreadPoolExecutor tpe = null;
+        ThreadPoolExecutor tpe =
+            new ThreadPoolExecutor(2, 3,
+                                   LONG_DELAY_MS, MILLISECONDS,
+                                   new ArrayBlockingQueue<Runnable>(10));
+        try {
+            tpe.setKeepAliveTime(-1,MILLISECONDS);
+            shouldThrow();
+        } catch (IllegalArgumentException success) {
+        } finally {
+            try { tpe.shutdown(); } catch (SecurityException ok) { return; }
+        }
+        joinPool(tpe);
+    }
+
+    /**
+     * terminated() is called on termination
+     */
+    public void testTerminated() {
+        ExtendedTPE tpe = new ExtendedTPE();
+        try { tpe.shutdown(); } catch (SecurityException ok) { return; }
+        assertTrue(tpe.terminatedCalled);
+        joinPool(tpe);
+    }
+
+    /**
+     * beforeExecute and afterExecute are called when executing task
+     */
+    public void testBeforeAfter() throws InterruptedException {
+        ExtendedTPE tpe = new ExtendedTPE();
+        try {
+            TrackedNoOpRunnable r = new TrackedNoOpRunnable();
+            tpe.execute(r);
+            Thread.sleep(SHORT_DELAY_MS);
+            assertTrue(r.done);
+            assertTrue(tpe.beforeCalled);
+            assertTrue(tpe.afterCalled);
+            try { tpe.shutdown(); } catch (SecurityException ok) { return; }
+        } finally {
+            joinPool(tpe);
+        }
+    }
+
+    /**
+     * completed submit of callable returns result
+     */
+    public void testSubmitCallable() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            Future<String> future = e.submit(new StringTask());
+            String result = future.get();
+            assertSame(TEST_STRING, result);
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * completed submit of runnable returns successfully
+     */
+    public void testSubmitRunnable() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            Future<?> future = e.submit(new NoOpRunnable());
+            future.get();
+            assertTrue(future.isDone());
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * completed submit of (runnable, result) returns result
+     */
+    public void testSubmitRunnable2() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
+            String result = future.get();
+            assertSame(TEST_STRING, result);
+        } finally {
+            joinPool(e);
+        }
+    }
+
+
+    /**
+     * invokeAny(null) throws NPE
+     */
+    public void testInvokeAny1() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            e.invokeAny(null);
+            shouldThrow();
+        } catch (NullPointerException success) {
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAny(empty collection) throws IAE
+     */
+    public void testInvokeAny2() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            e.invokeAny(new ArrayList<Callable<String>>());
+            shouldThrow();
+        } catch (IllegalArgumentException success) {
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAny(c) throws NPE if c has null elements
+     */
+    public void testInvokeAny3() throws Exception {
+        CountDownLatch latch = new CountDownLatch(1);
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        List<Callable<String>> l = new ArrayList<Callable<String>>();
+        l.add(latchAwaitingStringTask(latch));
+        l.add(null);
+        try {
+            e.invokeAny(l);
+            shouldThrow();
+        } catch (NullPointerException success) {
+        } finally {
+            latch.countDown();
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAny(c) throws ExecutionException if no task completes
+     */
+    public void testInvokeAny4() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        List<Callable<String>> l = new ArrayList<Callable<String>>();
+        l.add(new NPETask());
+        try {
+            e.invokeAny(l);
+            shouldThrow();
+        } catch (ExecutionException success) {
+            assertTrue(success.getCause() instanceof NullPointerException);
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAny(c) returns result of some task
+     */
+    public void testInvokeAny5() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            List<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            l.add(new StringTask());
+            String result = e.invokeAny(l);
+            assertSame(TEST_STRING, result);
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAll(null) throws NPE
+     */
+    public void testInvokeAll1() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
         try {
-            tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10));
-        } catch(Exception e){}
-        
-	try {
-            tpe.setKeepAliveTime(-1,TimeUnit.MILLISECONDS);
+            e.invokeAll(null);
             shouldThrow();
-        } catch(IllegalArgumentException success){
+        } catch (NullPointerException success) {
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAll(empty collection) returns empty collection
+     */
+    public void testInvokeAll2() throws InterruptedException {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
+            assertTrue(r.isEmpty());
         } finally {
-            tpe.shutdown();
+            joinPool(e);
         }
+    }
+
+    /**
+     * invokeAll(c) throws NPE if c has null elements
+     */
+    public void testInvokeAll3() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        List<Callable<String>> l = new ArrayList<Callable<String>>();
+        l.add(new StringTask());
+        l.add(null);
+        try {
+            e.invokeAll(l);
+            shouldThrow();
+        } catch (NullPointerException success) {
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * get of element of invokeAll(c) throws exception on failed task
+     */
+    public void testInvokeAll4() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            List<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new NPETask());
+            List<Future<String>> futures = e.invokeAll(l);
+            assertEquals(1, futures.size());
+            try {
+                futures.get(0).get();
+                shouldThrow();
+            } catch (ExecutionException success) {
+                assertTrue(success.getCause() instanceof NullPointerException);
+            }
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAll(c) returns results of all completed tasks
+     */
+    public void testInvokeAll5() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            List<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            l.add(new StringTask());
+            List<Future<String>> futures = e.invokeAll(l);
+            assertEquals(2, futures.size());
+            for (Future<String> future : futures)
+                assertSame(TEST_STRING, future.get());
+        } finally {
+            joinPool(e);
+        }
+    }
+
+
+
+    /**
+     * timed invokeAny(null) throws NPE
+     */
+    public void testTimedInvokeAny1() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            e.invokeAny(null, MEDIUM_DELAY_MS, MILLISECONDS);
+            shouldThrow();
+        } catch (NullPointerException success) {
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAny(,,null) throws NPE
+     */
+    public void testTimedInvokeAnyNullTimeUnit() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        List<Callable<String>> l = new ArrayList<Callable<String>>();
+        l.add(new StringTask());
+        try {
+            e.invokeAny(l, MEDIUM_DELAY_MS, null);
+            shouldThrow();
+        } catch (NullPointerException success) {
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAny(empty collection) throws IAE
+     */
+    public void testTimedInvokeAny2() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
+            shouldThrow();
+        } catch (IllegalArgumentException success) {
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAny(c) throws NPE if c has null elements
+     */
+    public void testTimedInvokeAny3() throws Exception {
+        CountDownLatch latch = new CountDownLatch(1);
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        List<Callable<String>> l = new ArrayList<Callable<String>>();
+        l.add(latchAwaitingStringTask(latch));
+        l.add(null);
+        try {
+            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
+            shouldThrow();
+        } catch (NullPointerException success) {
+        } finally {
+            latch.countDown();
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAny(c) throws ExecutionException if no task completes
+     */
+    public void testTimedInvokeAny4() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        List<Callable<String>> l = new ArrayList<Callable<String>>();
+        l.add(new NPETask());
+        try {
+            e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
+            shouldThrow();
+        } catch (ExecutionException success) {
+            assertTrue(success.getCause() instanceof NullPointerException);
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAny(c) returns result of some task
+     */
+    public void testTimedInvokeAny5() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            List<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            l.add(new StringTask());
+            String result = e.invokeAny(l, MEDIUM_DELAY_MS, MILLISECONDS);
+            assertSame(TEST_STRING, result);
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAll(null) throws NPE
+     */
+    public void testTimedInvokeAll1() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            e.invokeAll(null, MEDIUM_DELAY_MS, MILLISECONDS);
+            shouldThrow();
+        } catch (NullPointerException success) {
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAll(,,null) throws NPE
+     */
+    public void testTimedInvokeAllNullTimeUnit() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        List<Callable<String>> l = new ArrayList<Callable<String>>();
+        l.add(new StringTask());
+        try {
+            e.invokeAll(l, MEDIUM_DELAY_MS, null);
+            shouldThrow();
+        } catch (NullPointerException success) {
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAll(empty collection) returns empty collection
+     */
+    public void testTimedInvokeAll2() throws InterruptedException {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, MILLISECONDS);
+            assertTrue(r.isEmpty());
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAll(c) throws NPE if c has null elements
+     */
+    public void testTimedInvokeAll3() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        List<Callable<String>> l = new ArrayList<Callable<String>>();
+        l.add(new StringTask());
+        l.add(null);
+        try {
+            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
+            shouldThrow();
+        } catch (NullPointerException success) {
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * get of element of invokeAll(c) throws exception on failed task
+     */
+    public void testTimedInvokeAll4() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        List<Callable<String>> l = new ArrayList<Callable<String>>();
+        l.add(new NPETask());
+        List<Future<String>> futures =
+            e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
+        assertEquals(1, futures.size());
+        try {
+            futures.get(0).get();
+            shouldThrow();
+        } catch (ExecutionException success) {
+            assertTrue(success.getCause() instanceof NullPointerException);
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAll(c) returns results of all completed tasks
+     */
+    public void testTimedInvokeAll5() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            List<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            l.add(new StringTask());
+            List<Future<String>> futures =
+                e.invokeAll(l, MEDIUM_DELAY_MS, MILLISECONDS);
+            assertEquals(2, futures.size());
+            for (Future<String> future : futures)
+                assertSame(TEST_STRING, future.get());
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAll(c) cancels tasks not completed by timeout
+     */
+    public void testTimedInvokeAll6() throws Exception {
+        ExecutorService e = new ThreadPoolExecutor(2, 2, LONG_DELAY_MS, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        try {
+            List<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            l.add(Executors.callable(new MediumPossiblyInterruptedRunnable(), TEST_STRING));
+            l.add(new StringTask());
+            List<Future<String>> futures =
+                e.invokeAll(l, SHORT_DELAY_MS, MILLISECONDS);
+            assertEquals(3, futures.size());
+            Iterator<Future<String>> it = futures.iterator();
+            Future<String> f1 = it.next();
+            Future<String> f2 = it.next();
+            Future<String> f3 = it.next();
+            assertTrue(f1.isDone());
+            assertTrue(f2.isDone());
+            assertTrue(f3.isDone());
+            assertFalse(f1.isCancelled());
+            assertTrue(f2.isCancelled());
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * Execution continues if there is at least one thread even if
+     * thread factory fails to create more
+     */
+    public void testFailingThreadFactory() throws InterruptedException {
+        ExecutorService e = new ThreadPoolExecutor(100, 100, LONG_DELAY_MS, MILLISECONDS, new LinkedBlockingQueue<Runnable>(), new FailingThreadFactory());
+        try {
+            List<Callable<String>> l = new ArrayList<Callable<String>>();
+            for (int k = 0; k < 100; ++k) {
+                e.execute(new NoOpRunnable());
+            }
+            Thread.sleep(LONG_DELAY_MS);
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * allowsCoreThreadTimeOut is by default false.
+     */
+    public void testAllowsCoreThreadTimeOut() {
+        ThreadPoolExecutor tpe = new ThreadPoolExecutor(2, 2, 1000, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        assertFalse(tpe.allowsCoreThreadTimeOut());
         joinPool(tpe);
     }
-  
+
+    /**
+     * allowCoreThreadTimeOut(true) causes idle threads to time out
+     */
+    public void testAllowCoreThreadTimeOut_true() throws InterruptedException {
+        ThreadPoolExecutor tpe = new ThreadPoolExecutor(2, 10, 10, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        tpe.allowCoreThreadTimeOut(true);
+        tpe.execute(new NoOpRunnable());
+        try {
+            Thread.sleep(MEDIUM_DELAY_MS);
+            assertEquals(0, tpe.getPoolSize());
+        } finally {
+            joinPool(tpe);
+        }
+    }
+
+    /**
+     * allowCoreThreadTimeOut(false) causes idle threads not to time out
+     */
+    public void testAllowCoreThreadTimeOut_false() throws InterruptedException {
+        ThreadPoolExecutor tpe = new ThreadPoolExecutor(2, 10, 10, MILLISECONDS, new ArrayBlockingQueue<Runnable>(10));
+        tpe.allowCoreThreadTimeOut(false);
+        tpe.execute(new NoOpRunnable());
+        try {
+            Thread.sleep(MEDIUM_DELAY_MS);
+            assertTrue(tpe.getPoolSize() >= 1);
+        } finally {
+            joinPool(tpe);
+        }
+    }
+
+    /**
+     * execute allows the same task to be submitted multiple times, even
+     * if rejected
+     */
+    public void testRejectedRecycledTask() throws InterruptedException {
+        final int nTasks = 1000;
+        final AtomicInteger nRun = new AtomicInteger(0);
+        final Runnable recycledTask = new Runnable() {
+                public void run() {
+                    nRun.getAndIncrement();
+                } };
+        final ThreadPoolExecutor p =
+            new ThreadPoolExecutor(1, 30, 60, TimeUnit.SECONDS,
+                                   new ArrayBlockingQueue(30));
+        try {
+            for (int i = 0; i < nTasks; ++i) {
+                for (;;) {
+                    try {
+                        p.execute(recycledTask);
+                        break;
+                    }
+                    catch (RejectedExecutionException ignore) {
+                    }
+                }
+            }
+            Thread.sleep(5000); // enough time to run all tasks
+            assertEquals(nRun.get(), nTasks);
+        } finally {
+            p.shutdown();
+        }
+    }
+
 }