Using run-as-principal in MDB deployment descriptor

ejb-jar.xml

            <security-identity>
                <run-as>
                 <role-name>Admin</role-name>
                 </run-as>
                </security-identity>
        </message-driven>

...

<assembly-descriptor>
    <security-role>
         <role-name>Admin</role-name>
    </security-role>
        <container-transaction>

weblogic-ejb-jar.xml

<security-role-assignment>
            <role-name>
                    Admin
            </role-name>
                <principal-name>
                weblogic
                </principal-name>
          </security-role-assignment>
          <run-as-role-assignment>
        <role-name> 
            Admin 
        </role-name>
        <run-as-principal-name>
            weblogic
        </run-as-principal-name>
    </run-as-role-assignment>