org.apache.jasper.JasperException: javax.servlet.ServletException: javax.servlet.jsp.JspException

In my code i have got the following exception

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: javax.servlet.ServletException: javax.servlet.jsp.JspException: Cannot find bean: "UDHC_COUNTRY_MODEL" in scope: "session"
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:538)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:412)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

root cause

javax.servlet.ServletException: javax.servlet.jsp.JspException: Cannot find bean: "UDHC_COUNTRY_MODEL" in scope: "session"
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:865)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:794)
org.apache.jsp.Country_jsp._jspService(Country_jsp.java:375)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

root cause

javax.servlet.jsp.JspException: Cannot find bean: "UDHC_COUNTRY_MODEL" in scope: "session"
org.apache.struts.taglib.TagUtils.lookup(TagUtils.java:866)
org.apache.struts.taglib.bean.DefineTag.doEndTag(DefineTag.java:219)
org.apache.jsp.Country_jsp._jspService(Country_jsp.java:178)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.33 logs.

My country.jsp code

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@page import="java.util.ArrayList"%>
<%@page import="com.udhc.model.City"%>
<%@page import="com.udhc.model.Country"%>
<%@page import="com.udhc.model.State"%>

<%@page import="com.udhc.config.ApplicationConstant"%>
<%@page import="com.udhc.model.User"%>
<%@page import="com.udhc.model.Professional"%>
<%@page import="org.apache.struts.Globals"%>

<jsp:include page="Header.jsp"></jsp:include>

<%@taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>

<script type="text/javascript" >
function addCountry(tableID)
{
var table = document.getElementById(tableID);
var rowCount = table.rows.length;

var row = table.insertRow(rowCount);

var cell1 = row.insertCell(0);
var cell5;
cell1.innerHTML = "<input type='text' name='text_c"+rowCount+"' class=\"textfield\"/>";

cell5.innerHTML = "<a href=\"#\" color=\"red\" onClick=\"javascript:addToList(this);\" >Add</a>";
}

function getUDHCCountry(cId)
{
document.forms[0].countryId.value=cId;
document.forms[0].nextStep.value = "getCountry";
document.forms[0].action = "Admin.do";
document.forms[0].submit();
}

function addUDHCCountry(cId)
{
document.forms[0].countryId.value=cId;
document.forms[0].nextStep.value = "addCountry";
document.forms[0].action = "Admin.do";
document.forms[0].submit();
}
</script>

<input type="hidden" name="countryId"></input>
<bean:define id="professionalModel" name="UDHC_USER_MODEL" scope="session"></bean:define>
<bean:define id="countryModel" name="UDHC_COUNTRY_MODEL" scope="session"></bean:define>
<div><a href="Admin_MasterManagement.jsp">Back</a></div>
<table width="100%" class="back_img" height="300">
<logic:messagesPresent message="true">
<tr>
<td valign="top" style="height: 20px;">
<html:messages id="message" message="true">
<div class="success">
<bean:write name="message"/>
</div>
</html:messages>
</td>
</tr>
</logic:messagesPresent>
<tr valign="top">
<td valign="top" align="center">
<logic:present name="COUNTRY_LIST">
<div style="height: 480px; overflow: auto;">
<table width="80%" class="border" style="margin-top: 60px;">
<tr valign="top">
<td align="left" valign="top" colspan="8"><b><u>Professional List : </u></b></td>
</tr>
<tr class="background1" valign="top" style="font-weight: bold;">
<td width="5" align="center">Sr.No</td>
<td width="30" align="center">Name</td>
<td width="10" align="center">Short Name</td>
<td width="20" align="center">ISO Code</td>
<td width="10" align="center">Currency</td>
</tr>
<% int i=0; %>
<logic:iterate id="countryList" name="COUNTRY_LIST">
<tr>
<td width="5" align="left"><%=++i%></td>
<td width="30" align="left"><bean:write name="countryList" property="name" /></td>
<td width="10" align="center"><bean:write name="countryList" property="shortName" /></td>
<td width="20" align="left"><bean:write name="countryList" property="isoCode" /></td>
<td width="10" align="left"><bean:write name="countryList" property="currency" /></td>
</tr>
</logic:iterate>
</table>
</div>
</logic:present>
<logic:notPresent name="COUNTRY_LIST">
<b>Country List is empty.</b>
</logic:notPresent>
</td>
<td valign="top">
<a href="javascript:addCountry('countries')">Add Country</a>
</td>
</tr>

</table>

<jsp:include page="Footer.jsp"></jsp:include>