Thanks for the responses. The extra processes reflect JBoss threads for the following reasons: I've never see Solaris threads shown as processes before. We start only a single JBoss process, Also I've seen that each one of these additional processes do take memory (3Gb, as the original JBoss process), and when I stop them the memory is released. The extra processes are seen only a few hours after JBoss is running, and not consistently. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4162657#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...