# File lib/rufus/json.rb, line 149
  def self.detect_backend

    @backend =
      if defined?(::JrJackson)
        JRJACKSON
      elsif defined?(::Oj)
        OJ
      elsif defined?(::Yajl)
        YAJL
      elsif defined?(::JSON)
        JSON
      elsif defined?(ActiveSupport::JSON)
        ACTIVE_SUPPORT
      else
        NONE
      end
  end