Environment

Provide at least:

• jruby-7.1.25 and jruby-9.1.2.0
• macos

Expected Behavior

• local rubygems repo server.
• no internet connection
• gem install nexus fails. jruby-9.1.2.0 gives an IOError and jruby-1.7.25 an SockerError. the respective code in rubygems looks like

begin
      res = @dns.getresource "_rubygems._tcp.#{host}",
                             Resolv::DNS::Resource::IN::SRV
    rescue Resolv::ResolvError
      uri
    else
      target = res.target.to_s.strip

      if /\.#{Regexp.quote(host)}\z/ =~ target
        return URI.parse "#{uri.scheme}://#{target}#{uri.path}"
      end

      uri
    end

where host is localhost and @dns = Resolv::DNS.new. I am not sure what the idea of the reverse lookup but jruby clearly throws different errors then MRI.

Actual Behavior

• gem install nexus works on local repository server without further internet

the sonatype nexus server is a caching proxy and can cache rubygems repositories. one feature is that it can serve everything locally cached even with cut internet.