nokogiri-java bug

dom

Gemfile

# A sample Gemfile
source "https://rubygems.org"

gem "nokogiri"

Gemfile.lock

GEM
  remote: https://rubygems.org/
  specs:
    nokogiri (1.5.6-java)

PLATFORMS
  java

DEPENDENCIES
  nokogiri

modify_dom.rb

require 'nokogiri'

dom = Marshal.load(open('dom'))

doc_works = Nokogiri::XML(Nokogiri::XML::Document.wrap(dom).to_xml)
datasets_works = doc_works.xpath('//xfa:datasets', 'xfa' => 'http://www.xfa.org/schema/xfa-data/1.0/')
data = Nokogiri::XML("<form1><text_field01>foo</text_field01></form1>")
datasets_works.children.first.add_child(data.root)

doc_fails = Nokogiri::XML::Document.wrap(dom)
datasets_fails = doc_fails.xpath('//xfa:datasets', 'xfa' => 'http://www.xfa.org/schema/xfa-data/1.0/')
data = Nokogiri::XML("<form1><text_field01>foo</text_field01></form1>")
datasets_fails.children.first.add_child(data.root)