tomcat 7: is it possible to config tomcat common classloader to point to other location?

[Yongqin Xu]

Hello,
I am using TC 7, and the doc says, TC common classloader load 
$CATALINA_HOME/lib for thosecommonly shared lib jar files. Is it possible for 
me to config it pointing to other location? I know ifI define $CATALINA_BASE to 
point to a outside location, will $CATALINA_BASE/lib be used for TCcommon 
classloader to pick up there? thanks