"damianharvey" wrote : I don't think it's an issue. The NPE was only caused by the fact that I had overriden getEntityClass() but hadn't set the value of the entityClass field. Actually, I agree with Pete. If the contract of EntityHome requires getEntityClass() to be overridable (and it is, from what I gather), then it should always reference the getter, not the field. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4088501#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...