Hi,
From your posting I understand that you have a GET request from the form, but you have doPost in the program to handle the request.
If you have <form action="/jsp/form/process.jsp" method=post> in the HTML form then in your program
you should override doPost method. To handle GET request add the following code for the doGet method,
doGet(HttpServletRequest request, HttpServletResponse response){
doPost(HttpServletRequest request, HttpServletResponse response)}
This will redirect your GET request to doPost method.