You need to configure the server and the client to use the same database. If you are using HSQL, you have to configure the datasource for server mode, allowing the client to access the database over TCP. Read the comments in hsqldb-ds.xml, located in the deploy directory, for details. The client properties must be set accordingly. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4164604#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...