private void showPopupMenu(final MouseEvent event){
  final JPopupMenu menu=new CModuleFilterFieldMenu(getFilterField());
  menu.show(event.getComponent(),event.getX(),event.getY());
}

private void showPopupMenu ( final MouseEvent event ) { final JPopupMenu menu = new CModuleFilterFieldMenu ( getFilterField ( ) ) ; menu . show ( event . getComponent ( ) , event . getX ( ) , event . getY ( ) ) ; }
shows a context menu depending on the mouse event .
