$ ruby -J-cp jboss/bin/client/jboss-client.jar -S irb
jruby-1.6.7 :002 > require 'java'; require 'rubygems'; require 'jmx4r'
 => true
jruby-1.6.7 :003 > JMX::MBean.establish_connection :url => 'service:jmx:remoting-jmx://127.0.0.1:9999'
Jun 01, 2012 3:58:35 PM org.xnio.Xnio <clinit>
INFO: XNIO Version 3.0.3.GA
Jun 01, 2012 3:58:35 PM org.xnio.nio.NioXnio <clinit>
INFO: XNIO NIO Implementation Version 3.0.3.GA
Jun 01, 2012 3:58:35 PM org.xnio.nio.NioXnio <init>
WARN: The currently defined selector provider class (sun.nio.ch.PollSelectorProvider) is not supported for use with XNIO
Jun 01, 2012 3:58:35 PM org.jboss.remoting3.EndpointImpl <clinit>
INFO: JBoss Remoting version 3.2.3.GA
NativeException: java.lang.RuntimeException: Operation failed with status WAITING
	from org/jboss/remotingjmx/RemotingConnector.java:154:in `connect'
	from javax/management/remote/JMXConnectorFactory.java:267:in `connect'
	from /Users/jkutner/.rvm/gems/jruby-1.6.7/gems/jmx4r-0.1.3/lib/jmx4r.rb:220:in `create_connection'
	from /Users/jkutner/.rvm/gems/jruby-1.6.7/gems/jmx4r-0.1.3/lib/jmx4r.rb:125:in `establish_connection'
	from (irb):3:in `evaluate'
	from org/jruby/RubyKernel.java:1083:in `eval'
	from /Users/jkutner/.rvm/rubies/jruby-1.6.7/lib/ruby/1.8/irb.rb:158:in `eval_input'
	from /Users/jkutner/.rvm/rubies/jruby-1.6.7/lib/ruby/1.8/irb.rb:271:in `signal_status'
	from /Users/jkutner/.rvm/rubies/jruby-1.6.7/lib/ruby/1.8/irb.rb:155:in `eval_input'
	from org/jruby/RubyKernel.java:1410:in `loop'
	from org/jruby/RubyKernel.java:1183:in `catch'
	from /Users/jkutner/.rvm/rubies/jruby-1.6.7/lib/ruby/1.8/irb.rb:154:in `eval_input'
	from /Users/jkutner/.rvm/rubies/jruby-1.6.7/lib/ruby/1.8/irb.rb:71:in `start'
	from org/jruby/RubyKernel.java:1183:in `catch'
	from /Users/jkutner/.rvm/rubies/jruby-1.6.7/lib/ruby/1.8/irb.rb:70:in `start'
	from /Users/jkutner/.rvm/rubies/jruby-1.6.7/bin/jirb:17:in `(root)'