Thanks for your reply but unfortunately I don't understand your point.

Maybe I did not make clear what my problem is.

I have runmodes that may throw exceptions and a generic pre-run that also potentially throws exceptions.

Whenever an exception occurs I want it to be handled in one central location (the error-runmode) where I will then generate different responses for the client, depending on the exception thrown (I deal with an application that generates XML for machine-clients).

The question is know how to pass an exception that occurs in the pre-run on to the error-runmode in an elegant way.

Sorry if you provided an answer to that in your posting that I failed to understand.