Huisheng Xu [http://community.jboss.org/people/rebody] replied to the discussion "ClassCastException" To view the discussion, visit: http://community.jboss.org/message/536435#536435 -------------------------------------------------------------- Hi ricardo,   I think you should make sure if there is more than one ClassLoader could load the ProcessEngineImpl class. It looks like the ProcessEngineImpl being loaded twice so it can't be cast from a ClassLoader to another one. cheers. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/536435#536435] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]