anchor.diff:  
   [source, ruby]
   ----
  -[standalone@localhost:9999 subsystem=modcluster] :add-metric(type=cpu)
  -{"outcome" => "success"}
  -[standalone@localhost:9999 subsystem=modcluster] :read-resource(name=mod-cluster-config)
  +[standalone@localhost:9990 /] /subsystem=modcluster/proxy=default:add-metric(type=cpu)
  +{"outcome" => "success"}
  +[standalone@localhost:9990 /] /subsystem=modcluster/proxy=default:read-resource(name=mod-cluster-config)
   {
       "outcome" => "success",
       "result" => {
  
positive.code: 
  [source]
  ----
  [standalone@localhost:9999 subsystem=modcluster] :add-proxy(host=jfcpc, port=6666)
  {"outcome" => "success"}
  ----
  
  
negative.code: 
  [source]
  ----
  [standalone@localhost:9990 /] /subsystem=modcluster/proxy=default:enable-context(context=/myapp, virtualhost=default-host)
  {"outcome" => "success"}
  ----
  
  