cat.debug("<filterByUserName()");
    public UserView[] filterByUsername(String username) throws RemoteException, NamingException, FinderException, CreateException{       UserAdminData[] userarray = new UserAdminData[1];       UserAdminData user = null;       try{         user = adminsession.findUser(administrator, username);       }catch(AuthorizationDeniedException e){         }                if(user != null){         userarray[0]=user;         users.setUsers(userarray);       }else{         users.setUsers((UserAdminData[]) null);       }       return users.getUsers(0,1);    }