oh the drools jars were not being recognised in the classpath. it is working now. thanks for your reply. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4028669#4028669 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4028669