To bind something into the HAJNDI tree, you would obtain an initial context specifying an HAJNDI port rather than a JNDI port. Anything that you bound using that context would be placed in the HAJNDI tree and would only be accessible via HAJNDI. HAJNDI bindings are replicated to all nodes in the cluster. In JBoss 5, HAJNDI bindings are stored in JBossCache, which also handles the replication. In prior server versions, HAJNDI maintains its own store. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4021166#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...