Well, it's obviously not able to pull a database connection from the connection pool. You should verify that you have the right driver for your platform and that your datasource configuration is correct. Are you sure you have connectivity between the machines? I can't imagine what kind of connection problems would result in a stack overflow error though. :( If you can turn the logging up to trace level, you'll be able to see quite a bit more info. But, I haven't got the slightest idea of how to do that under resin. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3996171#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...