def included(base)
      base.extend(JRubyFX::Controller::ClassMethods)
      # register ourselves as a control. overridable with custom_fxml_control
      JRubyFX::DSL::ClassUtils.register_type base if base.is_a? Class
    end
def included(base)
      base.extend(JRubyFX::Controller::ClassMethods)
      # register ourselves as a control. overridable with custom_fxml_control
      JRubyFX::DSL::ClassUtils.register_type base if base.is_a? Class
    end
nested including, TODO: don't duplicate this