to_xhtml doesn't print the last slash for self-closing tags in JRuby

[bhollis]

require 'nokogiri'
x = Nokogiri::XML("<foo><br/></foo>")
puts x.to_xhtml

In JRuby 1.7.2:

<foo>
  <br>

</foo>

In MRI:

<foo>
  <br />
</foo>

Unfortunately this means it produces invalid XHTML.

[bhollis]

Here's another example:

require 'nokogiri'
x = Nokogiri::XML("<img src=\"http://jigsaw.w3.org/css-validator/images/vcss\" />")
puts x.to_xhtml

In JRuby:

<img src="http://jigsaw.w3.org/css-validator/images/vcss">

In MRI:

<img src="http://jigsaw.w3.org/css-validator/images/vcss" />

[bhollis]

Thanks!