I am quite used in using Log4J as a logging component in application.
I was wondering if anyone ever used Log4J for WCS applications?
Why? well, I find Log4J flexible with regard to log destinations (file,
database, even email). The application requires that functionality for
some log categories.

I haven't used the IBM RAS log extensively. If RAS is able to provide the
same kind of functionality, please do not hesitate to comment on that
as well.