public void stateChanged(ChangeEvent e){
  if (e == null) {
    throw new NullPointerException();
  }
  firePropertyChange(ACCESSIBLE_VISIBLE_DATA_PROPERTY,Boolean.valueOf(false),Boolean.valueOf(true));
}

public void stateChanged ( ChangeEvent e ) { if ( e == null ) { throw new NullPointerException ( ) ; } firePropertyChange ( ACCESSIBLE_VISIBLE_DATA_PROPERTY , Boolean . valueOf ( false ) , Boolean . valueOf ( true ) ) ; }
invoked when the target of the listener has changed its state .
