Can trigger compensation within active sub-processes

[sombrek]

Describe the Bug

A compensate throw event can trigger compensation of activites within active sub-process (on a parallel path).

Steps to Reproduce

1. See this model: compensate-active-subprocess.bpmn.txt
2. Add a pause point to "Compensate Task"
3. Trigger the start event
4. Wait until a token reaches the timer event
5. Trigger the message event
6. Note that a token waits on the "Compensate Sub" throw event
7. Trigger the timer event
8. Note that the compensation activity starts once the sub-process is finished
9. Trigger the "Compensate Task"
10. Note that the "Compensate Sub" throw event is exited.

Visual Demo

Expected Behavior

Compensation should not be triggered for the sub-process, because it is still active. Therefore, a token should simply pass through the compensate throw event in this case.

Environment

• Library version: 0.38.1

[barmac]

I agree. Since compensation can only be triggered for completed activities, the token should pass through as there is no activity to compensate.

Related spec fragment:

If an Activity is still active, it cannot be compensated, but rather needs to be canceled.

(page 301 or 330 in the PDF)

Thanks for reporting.