I mean at the bare minimum, if you UNDEPLOY your stateless session bean, @PreDestory needs to be called. My question is @PreDestory meant to be a per instance of a bean or when the entire pool is destroyed you call the @PreDestory....I'm not sure what the spec group was thinking here with respect to Stateless (Statefule beans I believe the meaning is clearer). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3963310#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...