Here is the code and i m getting the nullpointerexception in processrequest method and dopost method and i dont know how to resolve it. I am not getting any error in sending the email for verification code but when it checks whether the verification code is correct or not , it is throwing the null pointer exception.
package newpackage;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class VerifyCode extends HttpServlet {
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
try (PrintWriter out = response.getWriter()) {
HttpSession session = request.getSession();
User user = (User)session.getAttribute("authcode");
String code = request.getParameter("authcode");
if(code.equals(user.getCode())){
response.sendRedirect("login.jsp");
}
else
{
out.println("Incorrect verification code");
}
}
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException{
processRequest(request, response);
}
}
Error:
SEVERE [http-nio-8080-exec-2]
org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service()
for servlet [VerifyCode] in context with path [/WebApplication2] threw
exception
java.lang.NullPointerException
at newpackage.VerifyCode.processRequest(VerifyCode.java:23)
at newpackage.VerifyCode.doPost(VerifyCode.java:37)
