protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id = 0; try { id = Integer.parseInt(request.getParameter("accountId")); } catch (Exception e) { request.setAttribute("noAccountSelected", true); } Customer customer = (Customer) request.getSession().getAttribute("user"); List<Account> accounts = accountService.readUserAccounts(customer); for (Account account : accounts) { if (account.getId() == id) { request.setAttribute("selectedAccount", account); } } request.setAttribute("accounts", accounts); request.getRequestDispatcher("/customer/listOperations.jsp").forward(request, response); }