Maybe thats a simple thing, but I have the following situation: JBOSS 4.2 JSF EJB3 | public class SpielplatzCrudBean { | private static SpielplatzDAOLocal dao = (SpielplatzDAOLocal)LookupService.INSTANCE.lookup(SpielplatzDAOLocal.LOCALNAME); | Spielplatz selectedSpielplatz; | ............ | public String delete() | { | String id = FacesContext.getCurrentInstance() | .getExternalContext().getRequestParameterMap() | .get("selectedId"); | selectedSpielplatz = dao.findById(Long.valueOf(id), false); | dao.merge(selectedSpielplatz); | dao.makeTransient(selectedSpielplatz); | selectedSpielplatz=null; | return "list"; | } | } | when I call the delete method I always get the removie a detached instance exception. I tried a lot but have no more idea. Should I add somthing to the persistence.xml or have I to reconfigure my faces? Please Help. Chris View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4064735#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...