@SuppressWarnings("unchecked") @ResponseBody @RequestMapping(value = "/order/removeVoucher.ajax", method = RequestMethod.POST) public ResponseEntity<byte[]> removeVoucher(HttpServletRequest request) throws Exception { if (LOGGER.isDebugEnabled()) { LOGGER.debug("Removing voucher from order"); } Map<String, Object> model = new HashMap<String, Object>(); try { HttpSession session = request.getSession(true); String orderId = (String) session.getAttribute("orderid"); Order order = null; if (orderId != null) { order = orderRepository.findByOrderId(orderId); } if (order != null && order.getVoucher() != null) { order.setVoucherId(null); order.setVoucher(null); orderRepository.saveOrder(order); order = orderRepository.findByOrderId(orderId); } // Return processed status model.put("order", order); model.put("success", true); } catch (Exception ex) { LOGGER.error("", ex); model.put("success", false); model.put("message", ex.getMessage()); } return buildOrderResponse(model); }