Fix generics warnings in Mapper.
It is just some local variables. No change in functionality or APIs.


git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc6.0.x/trunk@1634228 13f79535-47bb-0310-9956-ffa450edef68
Update. All issue were resolved in v2 of the patch.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc6.0.x/trunk@1634231 13f79535-47bb-0310-9956-ffa450edef68