1) Open sample Evaluation.bpmn in Eclipse
2) Add this file to Guvnor repository.
3) Open the Evaluation process in Guvnor.
4) Change the name of 'Self Evaluation' to 'Self Evaluation 2'.
5) Save the Process
6) From Eclipse, update the file from the repo. Error. (see stacktrace.txt)
In fact, the original file contains a parallelGateway (converging)(see Evaluation.bpmn.old), but the new file contains parallelGateway (diverging) (see Evaluation.bpmn) which causes the exception. See screenshot.png.