SOS Struts

Estou fazendo um projeto pra faculdade e preciso da força de vcs...

Utilizo o padrão MVC e o Struts atuando na camada de controle.

TENHO UMA CLASSE CLIENTE COMO MODELO:

package cadastros;
...
imports
...
public class Cliente extends Modelo {
	//atributos do cliente
	private String nome;
	private String cidade;
	private String estado;
	private String cpf;
	private String telefone;
	private String email;
	//variavel para conexao ao banco
	private Connection conn;
	
	public Cliente() throws SQLException {		
		this.conn = ConnectionFactory.getConnection();
	}
	
	public void adiciona() throws SQLException {
		PreparedStatement stmt = (PreparedStatement) this.conn.prepareStatement("insert into cliente (nome, cidade, estado, cpf, telefone, email) values (?, ?, ?, ?, ?, ?)");
		
		stmt.setString(1, this.nome);
		stmt.setString(2, this.cidade);
		stmt.setString(3, this.estado);
		stmt.setString(4, this.cpf);
		stmt.setString(5, this.telefone);
		stmt.setString(6, this.email);
		
		stmt.execute();
		stmt.close();
	}
	
	public void altera(Modelo modelo) throws SQLException {
		PreparedStatement stmt = (PreparedStatement) this.conn.prepareStatement("update clientes set nome=?, cidade=?, estado=?, cpf=?, telefone=?, email=? where codigo=?");
		
		stmt.setString(1, this.nome);
		stmt.setString(2, this.cidade);
		stmt.setString(3, this.estado);
		stmt.setString(4, this.cpf);
		stmt.setString(5, this.telefone);
		stmt.setString(6, this.email);
		stmt.setLong(7, modelo.getCodigo());
		
		stmt.execute();
		stmt.close();
	}
	
	public void remove(Modelo modelo) throws SQLException {
		PreparedStatement stmt = (PreparedStatement) this.conn.prepareStatement("delete from clientes where codigo=?");
		
		stmt.setLong(1, modelo.getCodigo());
		
		stmt.execute();
		stmt.close();
	}
	...
	getters and setters
	...
	
}

package struts.form;

import java.sql.SQLException;

import org.apache.struts.action.*;
import cadastros.*;

public class ClienteForm extends ActionForm {
	
	//O erro ta dando na linha abaixo
        private Cliente cliente = new Cliente();
	
	public Cliente getCliente() {
		return cliente;
	}
	
}

E TENHO A CLASSE ACTION:

package struts.action;

import javax.servlet.http.*;

import org.apache.struts.action.*;

import cadastros.*;

import struts.form.ClienteForm;

public class AddCliente extends Action {
	public ActionForward execute(ActionMapping map, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		System.out.println("Tentando cadastrar novo cliente...");
		ClienteForm formulario = ((ClienteForm) form);
		
		Cliente cliente = formulario.instancia();
		
		Cadastro cad = new Cadastro();
		cad.inclui(cliente);
		
		return map.findForward("add-cli-ok");
	}
}

O SEGUINTE ERRO ESTÁ DANDO:

type Exception report

message

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

exception

org.apache.jasper.JasperException: Exception creating bean of class struts.form.ClienteForm: {1}
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:512)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause

javax.servlet.ServletException: Exception creating bean of class struts.form.ClienteForm: {1}
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:843)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:776)
org.apache.jsp.novoCli_jsp._jspService(novoCli_jsp.java:73)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause

javax.servlet.jsp.JspException: Exception creating bean of class struts.form.ClienteForm: {1}
org.apache.struts.taglib.html.FormTag.initFormBean(FormTag.java:465)
org.apache.struts.taglib.html.FormTag.doStartTag(FormTag.java:432)
org.apache.jsp.novoCli_jsp._jspx_meth_html_form_0(novoCli_jsp.java:142)
org.apache.jsp.novoCli_jsp._jspx_meth_html_html_0(novoCli_jsp.java:98)
org.apache.jsp.novoCli_jsp._jspService(novoCli_jsp.java:66)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.20 logs.

POR FAVOR, ME AJUDEM... PRECISO ENTREGAR ESTE PROJETO!!!