One problem I see in this is handling of ClusterPartition.NoHandlerForRPC, which is what ClusterPartition.RPCHandler returns if the requested service name isn't registered on that node. ResponseFilter impls will need to know how to deal with that, which means making the class a public top level class. For example, a ResponseFilter for HA-JNDI calls shouldn't accept a NoHandlerForRPC and then return true from needMoreResponses(). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4164135#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...