Hi, I am using Hibernate in a servlet and I have configured the hibernate.cfg.xml to use a Oracle datasource. If I change this datasource (up max connections, change the idle timeout), any subsequent calls to the servlet will have the following error... javax.resource.ResourceException: You are trying to use a connection factory that has been shut down: ManagedConnectionFactory is null. I believe this has something to do with Hibernate caching the connection and using a connection that has been closed. I assume that JBoss reallocates the connections and Hibernate has a dead reference to the old pool. Perhaps this isn't really a JBoss issue but since this is all theory at this point, I thought I would ask... Thanks! Theresa View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4071425#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...