[Tapestry-contrib] How to turn off error reporting?

[Thomas <ne...@gm...>]

Hi, folks!

I really like the error reporting feature very much. But on a live 
website this is a huge security risk.
How can I turn it off?
For example, org.apache.tapestry.ApplicationRuntimeException error is 
displayed often.
I use the lastest, Apache 3 beta 2 version.

Thanks for your help!

Thomas Derflinger