Timer Boundary doesn't fire when connected to ServiceTask

[sean-kmd]

I have a Timer Boundary on a UserTask set to PT10S.  When the Timer is connected to an EndEvent or another UserTask, the Timer fires.  However, when the Timer is connected to a ServiceTask, the Timer never fires.  Any thoughts?

[trademak]

Hi,

Yes, the service task executes in a synchronous manner. So a timer can never fire.
For a user task a timer can fire, because it's not executing in a synchronous manner.

Best regards,

[sean-kmd]

Thanks for the prompt reply!  I have spent a lot of time researching this issue with no luck.  Can you point me to the documentation that explains this synchronization? 

Also, is this considered a "limitation" that will be fixed in future versions? Or is this somehow a "feature"?  Can you recommend a workaround?

Thanks!