Created attachment 763024 [details]
Image of BPMN2 Process

Description of problem:
If I want to build a valid BPMN2 process, which contains multiple incoming/outgoing sequence flows to/from some activities, then a build shows attached ERROR in server.log.

This process was modelled in the designer and the validation was without errors.

Version-Release number of selected component (if applicable):
6.0.0 DR5 (Beta3)


Steps to Reproduce:
2. Create new package "default1" in resources of "HR" project
3. Create new process "proc.bpmn2" in package "default1"

4. Add start node into process.
5. Activate start node and attach task "A"
6. Activate new task "A" and attach task "B"
7. Activate task "A" and attach task "C"
8. Activate task "B" and attach task "D"
9. Activate task "C" and add sequence node from C to D
10. Activate task "D" and attach end event

11. Click on Validate icon in the Designer's tool bar
12. Save process
13. Open Project Editor for "myProject"
14. Set KBase to "default1"
15. Set KSession to "mySession"
16. Click on Build&Deploy

Actual results:
After step 16 you can see error in server.log
(java.lang.IllegalArgumentException: This type of node cannot have more than one outgoing connection!)


Expected results:
In step 11: Validation is OK so I expect that build should be without problem.


Additional info:
BPMN2 specification says:
  * An Activity MAY be a target for Sequence Flows; it can have multiple incoming Sequence Flows. Incoming Sequence Flows MAY be from an alternative path and/or parallel paths.
  * An Activity MAY be a source for Sequence Flows; it can have multiple outgoing Sequence Flows. If there are multiple outgoing Sequence Flows, then this means that a separate parallel path is being created for each Sequence Flow (i.e., tokens will be generated for each outgoing Sequence Flow from the Activity).