Nokogiri 1.5.5: CRuby vs JRuby

cruby_out.txt

<?xml version="1.0"?>
<D:multistatus xmlns:D="DAV:">
  <D:response>
    <D:href>some url one</D:href>
  </D:response>
  <D:response>
    <D:href>some url two</D:href>
  </D:response>
</D:multistatus>

jruby_out.txt

<?xml version="1.0"?>
<D:multistatus xmlns:D="DAV:">
  <D:response>
    <href>some url one</href>
  </D:response>
  <response>
    <href>some url two</href>
  </response>
</D:multistatus>

xmltest.rb

require 'nokogiri'
doc = Nokogiri::XML::Builder.new do |xml_base|
  xml_base.send('multistatus', 'xmlns:D' => 'DAV:') do
    xml_base.parent.namespace = xml_base.parent.namespace_definitions.first
    xml = xml_base['D']

    xml.response do
      xml.href "some url one"
    end
    xml.response do
      xml.href "some url two"
    end
  end
end

puts doc.to_xml