I have tried the same in my friend's PC and found that the problem lies in the JDK. JBoss cluster option reboot the XP when used in conjunction with JDK. I checked my friend's jboss log and found his JUDDI never failed. The system started rebooting after it joined the Cluster/GMS/JGroup channel. I will get the details of the log after I get to work. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3996218#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...