[jboss-user] [jBPM] - Re: getProcess in ProcessInstanceImpl throws a NullPointerException

Sandra Renaud [https://community.jboss.org/people/joploya] created the discussion "Re: getProcess in ProcessInstanceImpl throws a NullPointerException" To view the discussion, visit: https://community.jboss.org/message/807947#807947 -------------------------------------------------------------- Hello, Thank you for the link. Indeed, when I don't use persistence I just used the workflowProcessInstance and it works great. And the NullPointerException apear after changing to persistent session. But, I already try the command base approach and in my case it doesn't change anything.  My conclusion that seams to work for now is : WorkflowProcessInstance wpi = (WorkflowProcessInstance)kSession.getProcessInstance(processInstanceId); wpi.getVariable(key); to access variables even if I use persistent session. and define output parameters mapped to process variables directly inside the process and pass a map of results to the complete task method to dynamically change process variables. -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/807947#807947] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]