public void firePropertyChange(String propertyName,long oldValue,long newValue){
  if (changeSupport == null || oldValue == newValue) {
    return;
  }
  firePropertyChange(propertyName,Long.valueOf(oldValue),Long.valueOf(newValue));
}

public void firePropertyChange ( String propertyName , long oldValue , long newValue ) { if ( changeSupport == null || oldValue == newValue ) { return ; } firePropertyChange ( propertyName , Long . valueOf ( oldValue ) , Long . valueOf ( newValue ) ) ; }
reports a bound property change .
