jruby-head & torquebox-rake-support gem conflict

deploy_utils.rb

def exec_command(cmd)
        IO.popen4( cmd ) do |pid, stdin, stdout, stderr|
          trap("INT") do
            puts "caught SIGINT, shutting down"
            `taskkill /F /T /PID #{pid}` if windows?
          end
          stdin.close
          [
           Thread.new(stdout) {|stdout_io|
             stdout_io.each_line do |l|   # This is the line throwing the error... 295
               STDOUT.puts l
               STDOUT.flush
             end
             stdout_io.close
           },

           Thread.new(stderr) {|stderr_io|
             stderr_io.each_line do |l|
               STDERR.puts l
               STDERR.flush
             end
           }
          ].each( &:join )
        end

      end

jruby-head-torquebox-rake.txt

JRuby 1.6.5 works great. jruby-head breaks here.

$ rake torquebox:run --trace
** Invoke torquebox:run (first_time)
** Invoke torquebox:check (first_time)
** Execute torquebox:check
TorqueBox installation appears OK
TorqueBox Server OK: /Users/bhays/torquebox-current/jboss/standalone
** Execute torquebox:run
rake aborted!
Stream closed
org/jruby/RubyIO.java:3176:in `each_line'
/Users/bhays/.rvm/gems/jruby-head/gems/torquebox-rake-support-2.0.0.beta1/lib/torquebox/deploy_utils.rb:295:in `exec_command'
Tasks: TOP => torquebox:run