anonymous wrote : I deployed using the deployment tab in jBPM JPDL and marked the src/main/java so everything should be ok, but am i supposed to put the com.sample.action.CalculatorWS-stuff somewhere in a jar-file so it's in the classpath? Yes, but probably everything. The ws libs probably cannot access the processclassloader, so put *everything* in a jar on the classpath. Does it work then? You loose class versioning though, but I've never used that very much. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4175285#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...