some execution output not routed through default routes.

when running embedded maven I create an instance of EventMonitor, TransferListener and MavenEmbedderLogger.
however there's still some output that is not received through these means, but rather printoed to standard output (I suppose)
that's wrong because it prohibits custom handling of output.

one example that I found is the surefire plugin's output.. everything prepended with [surefire] is printed out wrongly..