Hi,
Sorry for the late reply, your mail got lost in my inbox I'm afraid.
Glancing at your context file it seems fine, although I can't be sure as
configuring a realm in tomcat has always been a pain for me. I don't
know which version of tomcat you are running, but you can check out
their manual here:
http://tomcat.apache.org/tomcat-6.0-doc/realm-howto.html. Notice the
debug settings, this is always helpful to get things going.
It is odd that the mysql realm is still picked up though, I'm afraid
that the new configuration is simply not noticed by tomcat. Make sure
tomcat is really reloading from your context file and not one in the
working directory.
Regards,
Ivo