Found the problem, my mistake in the web.xml file for the service for the <servlet-class> I had typed: <servlet-name>callerServlet</servlet-name> <!-- service implementation bean class --> <servlet-class>org.jbpm.bpel.tutorial.bonjour.Bonjour</servlet-class> instead of : <servlet-name>callerServlet</servlet-name> <!-- service implementation bean class --> <servlet-class>org.jbpm.bpel.tutorial.bonjour.Bonjour_Impl</servlet-class> View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3994717#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...