avoid using class.forName

git-svn-id: https://svn.apache.org/repos/asf/archiva/redback/redback-components/trunk@1449030 13f79535-47bb-0310-9956-ffa450edef68
todo done

git-svn-id: https://svn.apache.org/repos/asf/archiva/redback/redback-components/trunk@1449031 13f79535-47bb-0310-9956-ffa450edef68