Looking for guidance regarding best practices using boost statechart.

When it came time to have a mechanism to catch unhandled events and pass that information back to clients, my first choice has been to override unconsumed_event public function in state_machine class.

Given that the static code analysis tool we run complains about the dangers of overriding a non-virtual function, I came here to get more background into maybe why this function was not made virtual in the first place.

Is there for example a better implementation practice that would see this "catch all" function stay empty, as is the case with state_machine implementation, and instead use another technique to provide meaningful feedback to clients when the action or state transition requested is invalid/unsupported?

I feel I can justify and waive this code analysis tool warning up the food chain, but yet wanted some feedback from this user group first.

Thanks,

Alexandre