--- jsr166/src/test/tck/ScheduledExecutorTest.java	2003/09/14 20:42:40	1.4
+++ jsr166/src/test/tck/ScheduledExecutorTest.java	2009/11/02 20:28:32	1.22
@@ -1,502 +1,1147 @@
 /*
- * 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 junit.framework.*;
 import java.util.*;
 import java.util.concurrent.*;
+import java.util.concurrent.atomic.*;
 
 public class ScheduledExecutorTest 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(ScheduledExecutorTest.class);
     }
 
-    static class MyRunnable implements Runnable {
-        volatile boolean done = false;
-        public void run(){
-            try{
-                Thread.sleep(SMALL_DELAY_MS);
-                done = true;
-            } catch(Exception e){
-            }
-        }
-    }
-
-    static class MyCallable implements Callable {
-        volatile boolean done = false;
-        public Object call(){
-            try{
-                Thread.sleep(SMALL_DELAY_MS);
-                done = true;
-            }catch(Exception e){}
-            return Boolean.TRUE;
-        }
-    }
 
-    public void testExecute(){
-	try{
-            MyRunnable runnable =new MyRunnable();
-            ScheduledExecutor one = new ScheduledExecutor(1);
-	    one.execute(runnable);
+    /**
+     * execute successfully executes a runnable
+     */
+    public void testExecute() {
+	try {
+            TrackedShortRunnable runnable =new TrackedShortRunnable();
+            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+	    p1.execute(runnable);
 	    assertFalse(runnable.done);
 	    Thread.sleep(SHORT_DELAY_MS);
-	    one.shutdown();
-	    try{
+	    try { p1.shutdown(); } catch(SecurityException ok) { return; }
+	    try {
                 Thread.sleep(MEDIUM_DELAY_MS);
             } catch(InterruptedException e){
-                fail("unexpected exception");
+                unexpectedException();
             }
 	    assertTrue(runnable.done);
-            one.shutdown();
-            joinPool(one);
+            try { p1.shutdown(); } catch(SecurityException ok) { return; }
+            joinPool(p1);
         }
 	catch(Exception e){
-            fail("unexpected exception");
+            unexpectedException();
         }
-        
+
     }
 
-    public void testSchedule1(){
-	try{
-            MyCallable callable = new MyCallable();
-            ScheduledExecutor one = new ScheduledExecutor(1);
-	    Future f = one.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
+
+    /**
+     * delayed schedule of callable successfully executes after delay
+     */
+    public void testSchedule1() {
+	try {
+            TrackedCallable callable = new TrackedCallable();
+            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+	    Future f = p1.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
 	    assertFalse(callable.done);
 	    Thread.sleep(MEDIUM_DELAY_MS);
 	    assertTrue(callable.done);
 	    assertEquals(Boolean.TRUE, f.get());
-            one.shutdown();
-            joinPool(one);
-	}catch(RejectedExecutionException e){}
+            try { p1.shutdown(); } catch(SecurityException ok) { return; }
+            joinPool(p1);
+	} catch(RejectedExecutionException e){}
 	catch(Exception e){
-            fail("unexpected exception");
+            e.printStackTrace();
+            unexpectedException();
         }
     }
 
     /**
-     *  Another version of schedule, only using Runnable instead of Callable
+     *  delayed schedule of runnable successfully executes after delay
      */
-    public void testSchedule3(){
-	try{
-            MyRunnable runnable = new MyRunnable();
-            ScheduledExecutor one = new ScheduledExecutor(1);
-	    one.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
+    public void testSchedule3() {
+	try {
+            TrackedShortRunnable runnable = new TrackedShortRunnable();
+            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+	    p1.schedule(runnable, SMALL_DELAY_MS, TimeUnit.MILLISECONDS);
 	    Thread.sleep(SHORT_DELAY_MS);
 	    assertFalse(runnable.done);
 	    Thread.sleep(MEDIUM_DELAY_MS);
 	    assertTrue(runnable.done);
-            one.shutdown();
-            joinPool(one);
+            try { p1.shutdown(); } catch(SecurityException ok) { return; }
+            joinPool(p1);
         } catch(Exception e){
-            fail("unexpected exception");
+            unexpectedException();
         }
     }
-    
+
     /**
-     *  The final version of schedule, using both long, TimeUnit and Runnable
+     * scheduleAtFixedRate executes runnable after given initial delay
      */
-    public void testSchedule4(){
-	try{
-            MyRunnable runnable = new MyRunnable();
-            ScheduledExecutor one = new ScheduledExecutor(1);
-	    one.schedule(runnable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
+    public void testSchedule4() {
+	try {
+            TrackedShortRunnable runnable = new TrackedShortRunnable();
+            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+	    ScheduledFuture h = p1.scheduleAtFixedRate(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
 	    assertFalse(runnable.done);
 	    Thread.sleep(MEDIUM_DELAY_MS);
 	    assertTrue(runnable.done);
-            one.shutdown();
-            joinPool(one);
+            h.cancel(true);
+            joinPool(p1);
         } catch(Exception e){
-            fail("unexpected exception");
+            unexpectedException();
+        }
+    }
+
+    static class RunnableCounter implements Runnable {
+        AtomicInteger count = new AtomicInteger(0);
+        public void run() { count.getAndIncrement(); }
+    }
+
+    /**
+     * scheduleWithFixedDelay executes runnable after given initial delay
+     */
+    public void testSchedule5() {
+	try {
+            TrackedShortRunnable runnable = new TrackedShortRunnable();
+            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+	    ScheduledFuture h = p1.scheduleWithFixedDelay(runnable, SHORT_DELAY_MS, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
+	    assertFalse(runnable.done);
+	    Thread.sleep(MEDIUM_DELAY_MS);
+	    assertTrue(runnable.done);
+            h.cancel(true);
+            joinPool(p1);
+        } catch(Exception e){
+            unexpectedException();
+        }
+    }
+
+    /**
+     * scheduleAtFixedRate executes series of tasks at given rate
+     */
+    public void testFixedRateSequence() {
+	try {
+            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+            RunnableCounter counter = new RunnableCounter();
+	    ScheduledFuture h =
+                p1.scheduleAtFixedRate(counter, 0, 1, TimeUnit.MILLISECONDS);
+	    Thread.sleep(SMALL_DELAY_MS);
+            h.cancel(true);
+            int c = counter.count.get();
+            // By time scaling conventions, we must have at least
+            // an execution per SHORT delay, but no more than one SHORT more
+            assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
+            assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
+            joinPool(p1);
+        } catch(Exception e){
+            unexpectedException();
+        }
+    }
+
+    /**
+     * scheduleWithFixedDelay executes series of tasks with given period
+     */
+    public void testFixedDelaySequence() {
+	try {
+            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+            RunnableCounter counter = new RunnableCounter();
+	    ScheduledFuture h =
+                p1.scheduleWithFixedDelay(counter, 0, 1, TimeUnit.MILLISECONDS);
+	    Thread.sleep(SMALL_DELAY_MS);
+            h.cancel(true);
+            int c = counter.count.get();
+            assertTrue(c >= SMALL_DELAY_MS / SHORT_DELAY_MS);
+            assertTrue(c <= SMALL_DELAY_MS + SHORT_DELAY_MS);
+            joinPool(p1);
+        } catch(Exception e){
+            unexpectedException();
+        }
+    }
+
+
+    /**
+     *  execute (null) throws NPE
+     */
+    public void testExecuteNull() {
+        ScheduledThreadPoolExecutor se = null;
+        try {
+	    se = new ScheduledThreadPoolExecutor(1);
+	    se.execute(null);
+            shouldThrow();
+	} catch(NullPointerException success){}
+	catch(Exception e){
+            unexpectedException();
         }
+
+	joinPool(se);
     }
-    
-   
-    // exception tests
 
     /**
-     *   schedule(Runnable, long) throws RejectedExecutionException
-     *  This occurs on an attempt to schedule a task on a shutdown executor
+     * schedule (null) throws NPE
      */
-    public void testSchedule1_RejectedExecutionException(){
-        ScheduledExecutor se = new ScheduledExecutor(1);
-        try{
+    public void testScheduleNull() {
+        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
+	try {
+            TrackedCallable callable = null;
+	    Future f = se.schedule(callable, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
+            shouldThrow();
+	} catch(NullPointerException success){}
+	catch(Exception e){
+            unexpectedException();
+        }
+	joinPool(se);
+    }
+
+    /**
+     * execute throws RejectedExecutionException if shutdown
+     */
+    public void testSchedule1_RejectedExecutionException() {
+        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
+        try {
             se.shutdown();
             se.schedule(new NoOpRunnable(),
                         MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
-            fail("shoud throw");
+            shouldThrow();
         } catch(RejectedExecutionException success){
+        } catch (SecurityException ok) {
         }
+
         joinPool(se);
 
     }
 
     /**
-     *   schedule(Callable, long, TimeUnit) throws RejectedExecutionException
-     *  This occurs on an attempt to schedule a task on a shutdown executor
+     * schedule throws RejectedExecutionException if shutdown
      */
-    public void testSchedule2_RejectedExecutionException(){
-        ScheduledExecutor se = new ScheduledExecutor(1);
-        try{
+    public void testSchedule2_RejectedExecutionException() {
+        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
+        try {
             se.shutdown();
             se.schedule(new NoOpCallable(),
                         MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
-            fail("should throw");
+            shouldThrow();
         } catch(RejectedExecutionException success){
+        } catch (SecurityException ok) {
         }
         joinPool(se);
     }
 
     /**
-     *   schedule(Callable, long) throws RejectedExecutionException
-     *  This occurs on an attempt to schedule a task on a shutdown executor
+     * schedule callable throws RejectedExecutionException if shutdown
      */
-     public void testSchedule3_RejectedExecutionException(){
-         ScheduledExecutor se = new ScheduledExecutor(1);
-         try{
+     public void testSchedule3_RejectedExecutionException() {
+         ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
+         try {
             se.shutdown();
             se.schedule(new NoOpCallable(),
                         MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
-            fail("should throw");
+            shouldThrow();
         } catch(RejectedExecutionException success){
-        } 
+        } catch (SecurityException ok) {
+        }
          joinPool(se);
     }
 
     /**
-     *   scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws 
-     *  RejectedExecutionException.
-     *  This occurs on an attempt to schedule a task on a shutdown executor
-     */
-    public void testScheduleAtFixedRate1_RejectedExecutionException(){
-        ScheduledExecutor se = new ScheduledExecutor(1);
-        try{
+     *  scheduleAtFixedRate throws RejectedExecutionException if shutdown
+     */
+    public void testScheduleAtFixedRate1_RejectedExecutionException() {
+        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
+        try {
             se.shutdown();
             se.scheduleAtFixedRate(new NoOpRunnable(),
                                    MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
-            fail("should throw");
+            shouldThrow();
         } catch(RejectedExecutionException success){
-        } 
-        joinPool(se);
-    }
-    
-    /**
-     *   scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws 
-     *  RejectedExecutionException.
-     *  This occurs on an attempt to schedule a task on a shutdown executor
-     */
-    public void testScheduleAtFixedRate2_RejectedExecutionException(){
-        ScheduledExecutor se = new ScheduledExecutor(1);
-        try{
-            se.shutdown();
-            se.scheduleAtFixedRate(new NoOpRunnable(),
-                                   1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
-            fail("should throw");
-        } catch(RejectedExecutionException success){
-        } 
+        } catch (SecurityException ok) {
+        }
         joinPool(se);
     }
 
     /**
-     *   scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws 
-     *  RejectedExecutionException.
-     *  This occurs on an attempt to schedule a task on a shutdown executor
-     */
-    public void testScheduleWithFixedDelay1_RejectedExecutionException(){
-        ScheduledExecutor se = new ScheduledExecutor(1);
-        try{
+     * scheduleWithFixedDelay throws RejectedExecutionException if shutdown
+     */
+    public void testScheduleWithFixedDelay1_RejectedExecutionException() {
+        ScheduledThreadPoolExecutor se = new ScheduledThreadPoolExecutor(1);
+        try {
             se.shutdown();
             se.scheduleWithFixedDelay(new NoOpRunnable(),
                                       MEDIUM_DELAY_MS, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
-            fail("should throw");
+            shouldThrow();
         } catch(RejectedExecutionException success){
-        } 
-        joinPool(se);
-    }
-
-    /**
-     *   scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws 
-     *  RejectedExecutionException.
-     *  This occurs on an attempt to schedule a task on a shutdown executor
-     */
-     public void testScheduleWithFixedDelay2_RejectedExecutionException(){
-         ScheduledExecutor se = new ScheduledExecutor(1);
-        try{
-            se.shutdown();
-            se.scheduleWithFixedDelay(new NoOpRunnable(),
-                                      1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
-            fail("should throw");
-        } catch(RejectedExecutionException success){
-        } 
-        joinPool(se);
-    }
-
-    /**
-     *   execute throws RejectedExecutionException
-     *  This occurs on an attempt to schedule a task on a shutdown executor
-     */
-    public void testExecute_RejectedExecutionException(){
-        ScheduledExecutor se = new ScheduledExecutor(1);
-        try{
-            se.shutdown();
-            se.execute(new NoOpRunnable());
-            fail("should throw");
-        } catch(RejectedExecutionException success){
-        } 
+        } catch (SecurityException ok) {
+        }
         joinPool(se);
     }
 
     /**
-     *   getActiveCount gives correct values
+     *  getActiveCount increases but doesn't overestimate, when a
+     *  thread becomes active
      */
-    public void testGetActiveCount(){
-        ScheduledExecutor two = new ScheduledExecutor(2);
-        assertEquals(0, two.getActiveCount());
-        two.execute(new SmallRunnable());
-        try{
+    public void testGetActiveCount() {
+        ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
+        assertEquals(0, p2.getActiveCount());
+        p2.execute(new SmallRunnable());
+        try {
             Thread.sleep(SHORT_DELAY_MS);
         } catch(Exception e){
-            fail("unexpected exception");
+            unexpectedException();
         }
-        assertEquals(1, two.getActiveCount());
-        joinPool(two);
+        assertEquals(1, p2.getActiveCount());
+        joinPool(p2);
     }
-    
+
     /**
-     *   getCompleteTaskCount gives correct values
+     *    getCompletedTaskCount increases, but doesn't overestimate,
+     *   when tasks complete
      */
-    public void testGetCompletedTaskCount(){
-        ScheduledExecutor two = new ScheduledExecutor(2);
-        assertEquals(0, two.getCompletedTaskCount());
-        two.execute(new SmallRunnable());
-        try{
+    public void testGetCompletedTaskCount() {
+        ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
+        assertEquals(0, p2.getCompletedTaskCount());
+        p2.execute(new SmallRunnable());
+        try {
             Thread.sleep(MEDIUM_DELAY_MS);
         } catch(Exception e){
-            fail("unexpected exception");
+            unexpectedException();
         }
-        assertEquals(1, two.getCompletedTaskCount());
-        joinPool(two);
+        assertEquals(1, p2.getCompletedTaskCount());
+        joinPool(p2);
     }
-    
+
     /**
-     *   getCorePoolSize gives correct values
+     *  getCorePoolSize returns size given in constructor if not otherwise set
      */
-    public void testGetCorePoolSize(){
-        ScheduledExecutor one = new ScheduledExecutor(1);
-        assertEquals(1, one.getCorePoolSize());
-        joinPool(one);
+    public void testGetCorePoolSize() {
+        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+        assertEquals(1, p1.getCorePoolSize());
+        joinPool(p1);
     }
-    
+
     /**
-     *   getLargestPoolSize gives correct values
+     *    getLargestPoolSize increases, but doesn't overestimate, when
+     *   multiple threads active
      */
-    public void testGetLargestPoolSize(){
-        ScheduledExecutor two = new ScheduledExecutor(2);
-        assertEquals(0, two.getLargestPoolSize());
-        two.execute(new SmallRunnable());
-        two.execute(new SmallRunnable());
-        try{
+    public void testGetLargestPoolSize() {
+        ScheduledThreadPoolExecutor p2 = new ScheduledThreadPoolExecutor(2);
+        assertEquals(0, p2.getLargestPoolSize());
+        p2.execute(new SmallRunnable());
+        p2.execute(new SmallRunnable());
+        try {
             Thread.sleep(SHORT_DELAY_MS);
         } catch(Exception e){
-            fail("unexpected exception");
+            unexpectedException();
         }
-        assertEquals(2, two.getLargestPoolSize());
-        joinPool(two);
+        assertEquals(2, p2.getLargestPoolSize());
+        joinPool(p2);
     }
-    
+
     /**
-     *   getPoolSize gives correct values
+     *   getPoolSize increases, but doesn't overestimate, when threads
+     *   become active
      */
-    public void testGetPoolSize(){
-        ScheduledExecutor one = new ScheduledExecutor(1);
-        assertEquals(0, one.getPoolSize());
-        one.execute(new SmallRunnable());
-        assertEquals(1, one.getPoolSize());
-        joinPool(one);
+    public void testGetPoolSize() {
+        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+        assertEquals(0, p1.getPoolSize());
+        p1.execute(new SmallRunnable());
+        assertEquals(1, p1.getPoolSize());
+        joinPool(p1);
     }
-    
+
     /**
-     *   getTaskCount gives correct values
+     *    getTaskCount increases, but doesn't overestimate, when tasks
+     *    submitted
      */
-    public void testGetTaskCount(){
-        ScheduledExecutor one = new ScheduledExecutor(1);
-        assertEquals(0, one.getTaskCount());
+    public void testGetTaskCount() {
+        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+        assertEquals(0, p1.getTaskCount());
         for(int i = 0; i < 5; i++)
-            one.execute(new SmallRunnable());
-        try{
+            p1.execute(new SmallRunnable());
+        try {
             Thread.sleep(SHORT_DELAY_MS);
         } catch(Exception e){
-            fail("unexpected exception");
+            unexpectedException();
+        }
+        assertEquals(5, p1.getTaskCount());
+        joinPool(p1);
+    }
+
+    /**
+     * getThreadFactory returns factory in constructor if not set
+     */
+    public void testGetThreadFactory() {
+        ThreadFactory tf = new SimpleThreadFactory();
+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1, tf);
+        assertSame(tf, p.getThreadFactory());
+        joinPool(p);
+    }
+
+    /**
+     * setThreadFactory sets the thread factory returned by getThreadFactory
+     */
+    public void testSetThreadFactory() {
+        ThreadFactory tf = new SimpleThreadFactory();
+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
+        p.setThreadFactory(tf);
+        assertSame(tf, p.getThreadFactory());
+        joinPool(p);
+    }
+
+    /**
+     * setThreadFactory(null) throws NPE
+     */
+    public void testSetThreadFactoryNull() {
+	ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1);
+        try {
+            p.setThreadFactory(null);
+            shouldThrow();
+        } catch (NullPointerException success) {
+        } finally {
+            joinPool(p);
         }
-        assertEquals(5, one.getTaskCount());
-        joinPool(one);
     }
-    
+
     /**
-     *   isShutDown gives correct values
+     *   is isShutDown is false before shutdown, true after
      */
-    public void testIsShutdown(){
-        
-	ScheduledExecutor one = new ScheduledExecutor(1);
+    public void testIsShutdown() {
+
+	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
         try {
-            assertFalse(one.isShutdown());
+            assertFalse(p1.isShutdown());
         }
         finally {
-            one.shutdown();
+            try { p1.shutdown(); } catch(SecurityException ok) { return; }
         }
-	assertTrue(one.isShutdown());
+	assertTrue(p1.isShutdown());
     }
 
-        
+
     /**
-     *   isTerminated gives correct values
-     *  Makes sure termination does not take an innapropriate
-     *  amount of time
+     *   isTerminated is false before termination, true after
      */
-    public void testIsTerminated(){
-	ScheduledExecutor one = new ScheduledExecutor(1);
+    public void testIsTerminated() {
+	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
         try {
-            one.execute(new SmallRunnable());
+            p1.execute(new SmallRunnable());
         } finally {
-            one.shutdown();
+            try { p1.shutdown(); } catch(SecurityException ok) { return; }
         }
         try {
-	    assertTrue(one.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
-            assertTrue(one.isTerminated());
+	    assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
+            assertTrue(p1.isTerminated());
 	} catch(Exception e){
-            fail("unexpected exception");
-        }	
+            unexpectedException();
+        }
+    }
+
+    /**
+     *  isTerminating is not true when running or when terminated
+     */
+    public void testIsTerminating() {
+	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+        assertFalse(p1.isTerminating());
+        try {
+            p1.execute(new SmallRunnable());
+            assertFalse(p1.isTerminating());
+        } finally {
+            try { p1.shutdown(); } catch(SecurityException ok) { return; }
+        }
+        try {
+	    assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
+            assertTrue(p1.isTerminated());
+            assertFalse(p1.isTerminating());
+	} catch(Exception e){
+            unexpectedException();
+        }
+    }
+
+    /**
+     * getQueue returns the work queue, which contains queued tasks
+     */
+    public void testGetQueue() {
+        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+        ScheduledFuture[] tasks = new ScheduledFuture[5];
+        for(int i = 0; i < 5; i++){
+            tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
+        }
+        try {
+            Thread.sleep(SHORT_DELAY_MS);
+            BlockingQueue<Runnable> q = p1.getQueue();
+            assertTrue(q.contains(tasks[4]));
+            assertFalse(q.contains(tasks[0]));
+        } catch(Exception e) {
+            unexpectedException();
+        } finally {
+            joinPool(p1);
+        }
     }
 
     /**
-     *   that purge correctly removes cancelled tasks
-     *  from the queue
+     * remove(task) removes queued task, and fails to remove active task
      */
-    public void testPurge(){
-        ScheduledExecutor one = new ScheduledExecutor(1);
-        ScheduledCancellable[] tasks = new ScheduledCancellable[5];
+    public void testRemove() {
+        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+        ScheduledFuture[] tasks = new ScheduledFuture[5];
         for(int i = 0; i < 5; i++){
-            tasks[i] = one.schedule(new SmallRunnable(), 1, TimeUnit.MILLISECONDS);
+            tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), 1, TimeUnit.MILLISECONDS);
+        }
+        try {
+            Thread.sleep(SHORT_DELAY_MS);
+            BlockingQueue<Runnable> q = p1.getQueue();
+            assertFalse(p1.remove((Runnable)tasks[0]));
+            assertTrue(q.contains((Runnable)tasks[4]));
+            assertTrue(q.contains((Runnable)tasks[3]));
+            assertTrue(p1.remove((Runnable)tasks[4]));
+            assertFalse(p1.remove((Runnable)tasks[4]));
+            assertFalse(q.contains((Runnable)tasks[4]));
+            assertTrue(q.contains((Runnable)tasks[3]));
+            assertTrue(p1.remove((Runnable)tasks[3]));
+            assertFalse(q.contains((Runnable)tasks[3]));
+        } catch(Exception e) {
+            unexpectedException();
+        } finally {
+            joinPool(p1);
+        }
+    }
+
+    /**
+     *  purge removes cancelled tasks from the queue
+     */
+    public void testPurge() {
+        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+        ScheduledFuture[] tasks = new ScheduledFuture[5];
+        for(int i = 0; i < 5; i++){
+            tasks[i] = p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
+        }
+        try {
+            int max = 5;
+            if (tasks[4].cancel(true)) --max;
+            if (tasks[3].cancel(true)) --max;
+            // There must eventually be an interference-free point at
+            // which purge will not fail. (At worst, when queue is empty.)
+            int k;
+            for (k = 0; k < SMALL_DELAY_MS; ++k) {
+                p1.purge();
+                long count = p1.getTaskCount();
+                if (count >= 0 && count <= max)
+                    break;
+                Thread.sleep(1);
+            }
+            assertTrue(k < SMALL_DELAY_MS);
+        } catch(Exception e) {
+            unexpectedException();
+        } finally {
+            joinPool(p1);
         }
-        int max = 5;
-        if (tasks[4].cancel(true)) --max;
-        if (tasks[3].cancel(true)) --max;
-        one.purge();
-        long count = one.getTaskCount();
-        assertTrue(count > 0 && count <= max);
-        joinPool(one);
     }
 
     /**
-     *   shutDownNow returns a list
-     *  containing the correct number of elements
+     *  shutDownNow returns a list containing tasks that were not run
      */
-    public void testShutDownNow(){
-	ScheduledExecutor one = new ScheduledExecutor(1);
+    public void testShutDownNow() {
+	ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
         for(int i = 0; i < 5; i++)
-            one.schedule(new SmallRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
-        List l = one.shutdownNow();
-	assertTrue(one.isShutdown());
+            p1.schedule(new SmallPossiblyInterruptedRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
+        List l;
+        try {
+            l = p1.shutdownNow();
+        } catch (SecurityException ok) {
+            return;
+        }
+	assertTrue(p1.isShutdown());
 	assertTrue(l.size() > 0 && l.size() <= 5);
-        joinPool(one);
+        joinPool(p1);
     }
 
-    public void testShutDown1(){
+    /**
+     * In default setting, shutdown cancels periodic but not delayed
+     * tasks at shutdown
+     */
+    public void testShutDown1() {
         try {
-            ScheduledExecutor one = new ScheduledExecutor(1);
-            assertTrue(one.getExecuteExistingDelayedTasksAfterShutdownPolicy());
-            assertFalse(one.getContinueExistingPeriodicTasksAfterShutdownPolicy());
+            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+            assertTrue(p1.getExecuteExistingDelayedTasksAfterShutdownPolicy());
+            assertFalse(p1.getContinueExistingPeriodicTasksAfterShutdownPolicy());
 
-            ScheduledCancellable[] tasks = new ScheduledCancellable[5];
+            ScheduledFuture[] tasks = new ScheduledFuture[5];
             for(int i = 0; i < 5; i++)
-                tasks[i] = one.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
-            one.shutdown();
-            BlockingQueue q = one.getQueue();
+                tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
+            try { p1.shutdown(); } catch(SecurityException ok) { return; }
+            BlockingQueue q = p1.getQueue();
             for (Iterator it = q.iterator(); it.hasNext();) {
-                ScheduledCancellable t = (ScheduledCancellable)it.next();
+                ScheduledFuture t = (ScheduledFuture)it.next();
                 assertFalse(t.isCancelled());
             }
-            assertTrue(one.isShutdown());
+            assertTrue(p1.isShutdown());
             Thread.sleep(SMALL_DELAY_MS);
             for (int i = 0; i < 5; ++i) {
                 assertTrue(tasks[i].isDone());
                 assertFalse(tasks[i].isCancelled());
             }
-            
+
         }
         catch(Exception ex) {
-            fail("unexpected exception");
+            unexpectedException();
         }
     }
 
 
-    public void testShutDown2(){
+    /**
+     * If setExecuteExistingDelayedTasksAfterShutdownPolicy is false,
+     * delayed tasks are cancelled at shutdown
+     */
+    public void testShutDown2() {
         try {
-            ScheduledExecutor one = new ScheduledExecutor(1);
-            one.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
-            ScheduledCancellable[] tasks = new ScheduledCancellable[5];
+            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+            p1.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
+            ScheduledFuture[] tasks = new ScheduledFuture[5];
             for(int i = 0; i < 5; i++)
-                tasks[i] = one.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
-            one.shutdown();
-            assertTrue(one.isShutdown());
-            BlockingQueue q = one.getQueue();
+                tasks[i] = p1.schedule(new NoOpRunnable(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
+            try { p1.shutdown(); } catch(SecurityException ok) { return; }
+            assertTrue(p1.isShutdown());
+            BlockingQueue q = p1.getQueue();
             assertTrue(q.isEmpty());
             Thread.sleep(SMALL_DELAY_MS);
-            assertTrue(one.isTerminated());
+            assertTrue(p1.isTerminated());
         }
         catch(Exception ex) {
-            fail("unexpected exception");
+            unexpectedException();
         }
     }
 
 
-    public void testShutDown3(){
+    /**
+     * If setContinueExistingPeriodicTasksAfterShutdownPolicy is set false,
+     * periodic tasks are not cancelled at shutdown
+     */
+    public void testShutDown3() {
         try {
-            ScheduledExecutor one = new ScheduledExecutor(1);
-            one.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
-            ScheduledCancellable task =
-                one.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
-            one.shutdown();
-            assertTrue(one.isShutdown());
-            BlockingQueue q = one.getQueue();
+            ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
+            p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
+            ScheduledFuture task =
+                p1.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
+            try { p1.shutdown(); } catch(SecurityException ok) { return; }
+            assertTrue(p1.isShutdown());
+            BlockingQueue q = p1.getQueue();
             assertTrue(q.isEmpty());
             Thread.sleep(SHORT_DELAY_MS);
-            assertTrue(one.isTerminated());
+            assertTrue(p1.isTerminated());
         }
         catch(Exception ex) {
-            fail("unexpected exception");
+            unexpectedException();
         }
     }
 
-    public void testShutDown4(){
-        ScheduledExecutor one = new ScheduledExecutor(1);
+    /**
+     * if setContinueExistingPeriodicTasksAfterShutdownPolicy is true,
+     * periodic tasks are cancelled at shutdown
+     */
+    public void testShutDown4() {
+        ScheduledThreadPoolExecutor p1 = new ScheduledThreadPoolExecutor(1);
         try {
-            one.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
-            ScheduledCancellable task =
-                one.scheduleAtFixedRate(new NoOpRunnable(), 5, 5, TimeUnit.MILLISECONDS);
+            p1.setContinueExistingPeriodicTasksAfterShutdownPolicy(true);
+            ScheduledFuture task =
+                p1.scheduleAtFixedRate(new NoOpRunnable(), 1, 1, TimeUnit.MILLISECONDS);
             assertFalse(task.isCancelled());
-            one.shutdown();
+            try { p1.shutdown(); } catch(SecurityException ok) { return; }
             assertFalse(task.isCancelled());
-            assertFalse(one.isTerminated());
-            assertTrue(one.isShutdown());
+            assertFalse(p1.isTerminated());
+            assertTrue(p1.isShutdown());
             Thread.sleep(SHORT_DELAY_MS);
             assertFalse(task.isCancelled());
-            task.cancel(true);
-            assertTrue(task.isCancelled());
+            assertTrue(task.cancel(true));
+            assertTrue(task.isDone());
             Thread.sleep(SHORT_DELAY_MS);
-            assertTrue(one.isTerminated());
+            assertTrue(p1.isTerminated());
         }
         catch(Exception ex) {
-            fail("unexpected exception");
+            unexpectedException();
         }
         finally {
-            one.shutdownNow();
+            joinPool(p1);
+        }
+    }
+
+    /**
+     * completed submit of callable returns result
+     */
+    public void testSubmitCallable() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            Future<String> future = e.submit(new StringTask());
+            String result = future.get();
+            assertSame(TEST_STRING, result);
+        }
+        catch (ExecutionException ex) {
+            unexpectedException();
+        }
+        catch (InterruptedException ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * completed submit of runnable returns successfully
+     */
+    public void testSubmitRunnable() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            Future<?> future = e.submit(new NoOpRunnable());
+            future.get();
+            assertTrue(future.isDone());
+        }
+        catch (ExecutionException ex) {
+            unexpectedException();
+        }
+        catch (InterruptedException ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
         }
     }
 
+    /**
+     * completed submit of (runnable, result) returns result
+     */
+    public void testSubmitRunnable2() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING);
+            String result = future.get();
+            assertSame(TEST_STRING, result);
+        }
+        catch (ExecutionException ex) {
+            unexpectedException();
+        }
+        catch (InterruptedException ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAny(null) throws NPE
+     */
+    public void testInvokeAny1() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            e.invokeAny(null);
+        } catch (NullPointerException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAny(empty collection) throws IAE
+     */
+    public void testInvokeAny2() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            e.invokeAny(new ArrayList<Callable<String>>());
+        } catch (IllegalArgumentException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAny(c) throws NPE if c has null elements
+     */
+    public void testInvokeAny3() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            l.add(null);
+            e.invokeAny(l);
+        } catch (NullPointerException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAny(c) throws ExecutionException if no task completes
+     */
+    public void testInvokeAny4() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new NPETask());
+            e.invokeAny(l);
+        } catch (ExecutionException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAny(c) returns result of some task
+     */
+    public void testInvokeAny5() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            l.add(new StringTask());
+            String result = e.invokeAny(l);
+            assertSame(TEST_STRING, result);
+        } catch (ExecutionException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAll(null) throws NPE
+     */
+    public void testInvokeAll1() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            e.invokeAll(null);
+        } catch (NullPointerException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAll(empty collection) returns empty collection
+     */
+    public void testInvokeAll2() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>());
+            assertTrue(r.isEmpty());
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAll(c) throws NPE if c has null elements
+     */
+    public void testInvokeAll3() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            l.add(null);
+            e.invokeAll(l);
+        } catch (NullPointerException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * get of invokeAll(c) throws exception on failed task
+     */
+    public void testInvokeAll4() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new NPETask());
+            List<Future<String>> result = e.invokeAll(l);
+            assertEquals(1, result.size());
+            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
+                it.next().get();
+        } catch(ExecutionException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * invokeAll(c) returns results of all completed tasks
+     */
+    public void testInvokeAll5() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            l.add(new StringTask());
+            List<Future<String>> result = e.invokeAll(l);
+            assertEquals(2, result.size());
+            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
+                assertSame(TEST_STRING, it.next().get());
+        } catch (ExecutionException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAny(null) throws NPE
+     */
+    public void testTimedInvokeAny1() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            e.invokeAny(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
+        } catch (NullPointerException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAny(,,null) throws NPE
+     */
+    public void testTimedInvokeAnyNullTimeUnit() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            e.invokeAny(l, MEDIUM_DELAY_MS, null);
+        } catch (NullPointerException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAny(empty collection) throws IAE
+     */
+    public void testTimedInvokeAny2() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            e.invokeAny(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
+        } catch (IllegalArgumentException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAny(c) throws NPE if c has null elements
+     */
+    public void testTimedInvokeAny3() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            l.add(null);
+            e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
+        } catch (NullPointerException success) {
+        } catch(Exception ex) {
+            ex.printStackTrace();
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAny(c) throws ExecutionException if no task completes
+     */
+    public void testTimedInvokeAny4() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new NPETask());
+            e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
+        } catch(ExecutionException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAny(c) returns result of some task
+     */
+    public void testTimedInvokeAny5() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            l.add(new StringTask());
+            String result = e.invokeAny(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
+            assertSame(TEST_STRING, result);
+        } catch (ExecutionException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAll(null) throws NPE
+     */
+    public void testTimedInvokeAll1() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            e.invokeAll(null, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
+        } catch (NullPointerException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAll(,,null) throws NPE
+     */
+    public void testTimedInvokeAllNullTimeUnit() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            e.invokeAll(l, MEDIUM_DELAY_MS, null);
+        } catch (NullPointerException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAll(empty collection) returns empty collection
+     */
+    public void testTimedInvokeAll2() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            List<Future<String>> r = e.invokeAll(new ArrayList<Callable<String>>(), MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
+            assertTrue(r.isEmpty());
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAll(c) throws NPE if c has null elements
+     */
+    public void testTimedInvokeAll3() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            l.add(null);
+            e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
+        } catch (NullPointerException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * get of element of invokeAll(c) throws exception on failed task
+     */
+    public void testTimedInvokeAll4() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new NPETask());
+            List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
+            assertEquals(1, result.size());
+            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
+                it.next().get();
+        } catch(ExecutionException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAll(c) returns results of all completed tasks
+     */
+    public void testTimedInvokeAll5() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<Callable<String>> l = new ArrayList<Callable<String>>();
+            l.add(new StringTask());
+            l.add(new StringTask());
+            List<Future<String>> result = e.invokeAll(l, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS);
+            assertEquals(2, result.size());
+            for (Iterator<Future<String>> it = result.iterator(); it.hasNext();)
+                assertSame(TEST_STRING, it.next().get());
+        } catch (ExecutionException success) {
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+    /**
+     * timed invokeAll(c) cancels tasks not completed by timeout
+     */
+    public void testTimedInvokeAll6() {
+        ExecutorService e = new ScheduledThreadPoolExecutor(2);
+        try {
+            ArrayList<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>> result = e.invokeAll(l, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
+            assertEquals(3, result.size());
+            Iterator<Future<String>> it = result.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());
+        } catch(Exception ex) {
+            unexpectedException();
+        } finally {
+            joinPool(e);
+        }
+    }
+
+
 }