Error servlet con struts

[EstherSL]

Buenas,

en primer lugar gracias por tu ayuda...

Te cuento, lo que tengo en mi clase SeleccionarSintomas es:

package localhost.axis.services;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

/**
* Servlet implementation class for Servlet: seleccionarSintomas
*
*/
public class SeleccionarSintomas extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {

/* (non-Java-doc)
* @see javax.servlet.http.HttpServlet#HttpServlet()
*/

/**
*
*/
private static final long serialVersionUID = 1L;

public void finalize() throws Throwable {
super.finalize();
}
public SeleccionarSintomas() {
super();
}

/* (non-Java-doc)
* @see javax.servlet.http.HttpServlet#doGet(HttpServletRe quest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
}

/* (non-Java-doc)
* @see javax.servlet.http.HttpServlet#doPost(HttpServletR equest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
}

public ActionForward abrirEnfermedad(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
throws Exception {

return mapping.findForward("okSeleccionarSintomas");
}
}

Es un servlet que dentro tiene el action "abrirEnfermedad" que declaramos en struts-config.xml...¿es así?