The Hypersonic data file is located at server/xxx/data/hypersonic/localDB.script. Look for it only after you stop the app server. The file contains the SQL statements necessary to rebuild the database when the app server is restarted. There is not change needed to the hsqldb-ds.xml file. If you plan to go into production with your portal, you should switch to a real database, such as PostgreSQL or MySQL (actually, you should seriously consider that even for development). Instructions are in the reference guide. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4064809#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...