You can set any JVM options by editing the line that sets JAVA_OPTS in either run.bat (Windows) or run.conf (Linux). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4045629#4045629 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4045629