Null Pointer Exception

[nao88]

Hello everybody,
i tried to execute my first project and ran in errors.
The Errors occurred if I tried to start the process 
Here is my code and the error message


https://www.dropbox.com/sh/l924fkhaxalytqd/ARrWPSmODK


thanks

nao88

[trademak]

The creditCheckOk variable seems to be null. It looks like an example from the Activiti in Action book, right?

Best regards,

[nao88]

Yes this is an example but i didn’t see my failure
I had set the creditCheckOk in the Scripttask.