public virtual void removeListDataListener(ListDataListener l)
 {
   this.listdatalistener.remove((object) l);
   this.tempListeners = (ListDataListener[]) null;
 }
 public virtual void addListDataListener(ListDataListener l)
 {
   if (l == null)
   {
     Throwable.__\u003CsuppressFillInStackTrace\u003E();
     throw new NullPointerException();
   }
   else
   {
     this.listdatalistener.add((object) l);
     this.tempListeners = (ListDataListener[]) null;
   }
 }