"alesj" wrote : I guess if I just write lock the deploy and undeploy lists processing, you should be fine. | This is not fully sufficient either, as one could do addDeployment in between the two write locks in process(), and if this new deployment would actually be re-deploy, we would only pick up its deploy part, but not the undeploy part. :-( View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4211782#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...