This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
/usr/share/java is where (at least for RedHat/Fedora-style distros), the OS-supplied jars reside. Things like jdbc drivers and stuff like that. You really don't want to dump tomcat's internal jars in there. For one thing, they're not stuff you want to - ahem - "share".
I have been known to go the other direction, however, and place a softlink(s) in TOMCAT_HOME/lib to one or more JDBC driver jars in /usr/share/java. Tomcat's OK with that.
Customer surveys are for companies who didn't pay proper attention to begin with.