Proplema com 2 Acoes no Struts

Front-end
#1

Ola Pessoal,

Estou estudando o struts e peguei alguns exemplos na net, porem estou tendo problema com a exclusao do Banco, se alguem puder me ajudar…

Meu Form

[code]public class RemoveContatoForm extends org.apache.struts.action.ActionForm {
/RemoveContatoForm/
private Contato contato;

public Contato getContato() {
    return contato;
}

public void setContato(Contato contato) {
    this.contato = contato;
}

}[/code]

Meu Action

[code]public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {

   RemoveContatoForm formulario = ((RemoveContatoForm)form);
    Contato contato = formulario.getContato();
    
    ContatoDAO dao = new ContatoDAO();
    dao.deleta(contato);
    
    return mapping.findForward("remove");
    
}

}[/code]

Strut.config.xml

[code]


[/code]

lista.jsp

[code]

${contato.id} - ${contato.nome} - ${contato.endereco}
(remover)
[/code]

Erro:

[quote]HTTP Status 500 -

type Exception report

message

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

exception

javax.servlet.ServletException: java.lang.NullPointerException
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:535)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:433)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)

root cause [/quote]

#2