# File rbBinaryCFPropertyList.rb, line 117
    def read_binary_null_type(length)
      case length
      when 0 then return 0 # null byte
      when 8 then return CFBoolean.new(false)
      when 9 then return CFBoolean.new(true)
      when 15 then return 15 # fill type
      end

      raise CFFormatError.new("unknown null type: #{length}")
    end