empty_content?

# File activesupport/lib/active_support/xml_mini/jdom.rb, line 150
    def empty_content?(element)
      text = ''
      child_nodes = element.child_nodes
      for i in 0...child_nodes.length
        item = child_nodes.item(i)
        if item.node_type == Node.TEXT_NODE
          text << item.get_data.strip
        end
      end
      text.strip.length == 0
    end