AIUI You shouldn't need to sign any jars since JBM should require any extra permissions beyond those given to an applet. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4247764#4247764 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4247764