public PaginatedBalanceInfoBean getPaginatedBalances(int pageNumber) throws Exception {
BillingManager billingManager = Util.getBillingManager();
BillingEngine billingEngine =
billingManager.getBillingEngine(StratosConstants.MULTITENANCY_SCHEDULED_TASK_ID);
List<OutstandingBalanceInfoBean> balanceBeans = billingEngine.getAllOutstandingBalances(null); //no tenant domain
PaginatedBalanceInfoBean paginatedBalanceBean = new PaginatedBalanceInfoBean();
DataPaginator.doPaging(pageNumber, balanceBeans, paginatedBalanceBean);
return paginatedBalanceBean;
}