Hi, i have the PermGen Space problems very often. I've found a german site with a solution: http://blog.meimberg.info/?p=207 It means that you shoud start your JBoss with set JAVA_OPTS=%JAVA_OPTS% -Xms128m -Xmx512m | -XX:+CMSPermGenSweepingEnabled -XX:MaxPermSize=128m | -Dsun.rmi.dgc.client.gcInterval=3600000 | -Dsun.rmi.dgc.server.gcInterval=3600000 Now the PermGen Space error only appears after about 10 hot deployments. And it is recommended to use BEA Rocket VM. But i think that isn't the best way... But i want to know, how JBoss Seam manages the hot deployment in a productive environment. I dont want to stop my server for every new version. Will the webaap be stable at a hot deployment? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4041919#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...