My question is : is it possible to change a timer duedate on a process instance level? I know the duedate is stored in the jbpm4_job table. Is it allowed to change it here? Will the process engine pickup this change correctly?
Yes you can change it on the db level. Just make sure jBPM, or better the job scheduler is not running. If you start it, it will pick all manual changes up.
Thanks Ronald for your answer. One more though : how to make sure the job scheduler is not running?
uhhmm.. by not starting the appservers jBPM is running on....
uhm ideed. I thought you meant dissabling some Jbpm services/modules... but not starting the app server should do the trick.