How to get userRole from Tomcat 3.2.3?

[me]

Hi,

I am using JDBCRealm and need a convenient way to get the userRoles of the
user. GetRemoteUser is not the right way. In the source code of JDBCRealm I
found a getuserRoles method - how can I use it in my own servlets? Calling
jedbcRealm = new JDBCRealm() and then jdbcRealm.getuserRoles do not work,
of course...

Best thanks in advance

Thomas W. Richter