jordi elies [http://community.jboss.org/people/jelies] replied to the discussion "ClassCastException: JpdlProcessDefinition cannot be cast to ProcessDefinitionImpl" To view the discussion, visit: http://community.jboss.org/message/540419#540419 -------------------------------------------------------------- Thanks for your reply Nenad, :) I don't bind the ProcessEngine to JNDI because my ProcessEngine is running inside my application. I don't need to use it as a service, only this application will use this ProcessEngine. I've installed the jBPM as a webapp (following the jBPM doc: http://docs.jboss.com/jbpm/v4/userguide/html_single/#userwebapp http://docs.jboss.com/jbpm/v4/userguide/html_single/#userwebapp). Anyway, your suggestion is pretty good, probably some class stills in JBoss memory or similar and when I redeploy the application and use the process engine the ClassCastException is thrown. I'll continue searching more fore ClassCastException on this forum, I've found similar problems but not exactly the same. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/540419#540419] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]