Bug in remove(Runnable) method of ScheduledExecutor class.
When I try to invoke remove() nethod by passing the Runnable object, it
throws ClassCastException. This bug is reproducible on JSR166 Preliminary Test Relase 2. Please find the sample test program which try to
produce the bug (See test01()) or following sample code.

Sample code for reproducing bug.

/* sample code */
ScheduledExecutor executor = new ScheduledExecutor(10);

MyThread[] myJobArray = new MyThread[10];

for(int i = 0; i < myJobArray.length; i++){
    myJobArray[i] = new MyThread();
    executor.execute(myJobArray[i]);
}

//Bug in remove() method. Try to remove the one Runnable object.
//Ideally remove method should return true. But it throws ClassCastException.
System.out.println(executor.remove((Runnable)myJobArray[9]));
/* end of sample code */
    
This is a backlog bug and added to bugtraq just for tracking purpose.
It has been fixed.