i am getting this exception

HI this is my jsp page

<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<html>
<head> <title>User Registration</title> </head>
<body>
<h1>User Registration</h1>
<html:errors/>
<table>
<html:form action="userRegistration">
<tr>
<td><bean:message key="userRegistration.firstName"/>*</td>
<td><html:text property="firstName"/></td>
</tr>
<tr>
<td><bean:message key="userRegistration.lastName"/>*</td>
<td><html:text property="lastName"/></td>
</tr>
<tr>
<td><bean:message key="userRegistration.userName"/>*</td>
<td><html:text property="userName"/></td>
</tr>
<tr>
<td><bean:message key="userRegistration.email"/>*</td>
<td><html:text property="email"/></td>
</tr>
<tr>
<td><bean:message key="userRegistration.phone"/>*</td>
<td><html:text property="phone"/></td>
</tr>
<tr>
<td><bean:message key="userRegistration.fax"/>*</td>
<td><html:text property="fax"/></td>
</tr>
<tr>
<td><bean:message key="userRegistration.password"/>*</td>
<td><html:text property="password"/></td>
</tr>
<tr>
<td><bean:message key="userRegistration.password"/>*</td>
<td><html:text property="passwordCheck"/></td>
</tr>
<tr>
<td><html:submit/></td>
<td><td>
</tr>
</html:form>
</table>

</body>
</html>

when i am trying to start this page in apache server i am getting this exception

HTTP Status 500 -

type Exception report

message

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

exception

org.apache.jasper.JasperException: An exception occurred processing JSP page /userRegistration.jsp at line 7

4: <head> <title>User Registration</title> </head>
5: <body>
6: <h1>User Registration</h1>
7: <html:errors/>
8: <table>
9: <html:form action="userRegistration">
10: <tr>

Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:524)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:417)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
root cause

javax.servlet.ServletException: java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:850)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:779)
org.apache.jsp.userRegistration_jsp._jspService(userRegistration_jsp.java:98)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
root cause

java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
org.apache.struts.util.MessageResources.<clinit>(MessageResources.java:57)
org.apache.struts.taglib.html.ErrorsTag.<clinit>(ErrorsTag.java:100)
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
java.lang.reflect.Constructor.newInstance(Unknown Source)
java.lang.Class.newInstance0(Unknown Source)
java.lang.Class.newInstance(Unknown Source)
org.apache.jasper.runtime.TagHandlerPool.get(TagHandlerPool.java:126)
org.apache.jsp.userRegistration_jsp._jspx_meth_html_005ferrors_005f0(userRegistration_jsp.java:110)
org.apache.jsp.userRegistration_jsp._jspService(userRegistration_jsp.java:81)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.14 logs.

Please tell me how can i rectify this exception and execute the program successfully.

This line in your stack trace makes it sound like you have an unresolved dependency on Apache Commons Logging.