Which version of jboss tools are you using? Jboss Tools 3.0CR1 compatible with eclipse 3.4.1. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4202696#4202696 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4202696