I'm trying to fetch all the roles for the current user who has been authenticated and show them in a JSP page.
I notice that there are some built-in expressions listed here: http://static.springsource.org/spring-security/site/docs/3.0.x/reference/el-access.html but I don't see any that would list all the roles.
You can use SecurityContextHolder.getContext().getAuthentication().getAuthorities()
to obtain a collection of the currently logged in user's roles.