// create empty order
Order order = Order.create();
order.setName(_("All projects"));
// create empty subreport to expense sheets
JRDataSource emptyES = new JRBeanCollectionDataSource(
createEmptyExpenseSheetLineList(order));
// create empty subreport to work report lines
JRDataSource emptyWRL = new JRBeanCollectionDataSource(createEmptyWorkReportLineList(order));
OrderCostMasterDTO emptyDTO = new OrderCostMasterDTO(order, emptyWRL, emptyES);
return emptyDTO;
}