Thank you very much. Know I got it (0.01 % ;) ) and save all necessary things.
Okay one more question:
There are StatefulKnowledgeSession ids and also ProcessInstance ids.
It seems it is not necessary if I use the Session which starts a new process or an newer Session with an older process.
Please can you explain when we should use a new Session or can use the old session? I don´t not know really what it does...