RuntimeException when call Activiti exist

[bapu]

I am trying to throw RuntimeException to the calling program (Test) from a JavaDelegate. This works fine if the workflow is a single workflow.  But if the workflow includes 'Call Activiti', Runtime Exception never gets propagated to Calling Program (Test). 

Here i have

Start - > Service Task 1 -> Call Activiti -> Service Task2 - > end.

'Service Task2' throws runtime exception, but exception never makes to my Test that starts the workflow.

Any ideas?

Thanks,
Bapu

[jbarrez]

Check the BPMN error event mechanism. Regular Java exceptions have no meaning in bpmn context.

[bapu]

Thanks!
How come runtime exception gets propagated to caller (test) when the exception is thrown form the first 'Service Task 1' , i.e. the task before the call activiti task.

thanks,
bapu

[frederikherema1]

Because the process is driven (executed) by the callign thread, and it gets the exceptions (after they are handled internally) as immediate feedback. So when no exceptions occur when calling, you can be sure the process ran successfully until the next wait-state/process-end or async activity.