<%@ page import="example.UserCredential"%>
<%@ taglib uri="http://weblogs.java.net/ss141213/tags/jpa" prefix="jpa" %>
User login page
<% String name = String.class.cast(request.getParameter("name")); %>
<% String password = String.class.cast(request.getParameter("password")); %>
<% if(credential != null && credential.isMatchingPassword(password)) { %>
<%= "Welcome " + name %>
<% } else { %>
<%= "Incorrect user name or password" %>
<% } %>