Dúvida com o calendário do rich faces

public class RelatorioProdutosVendidos
{
    private HtmlOutputText output1 = new HtmlOutputText();
    
    //Título
    private HtmlOutputText titulo1 = new HtmlOutputText();
    //Formulário de Busca
    private UIDiv divBusca = new UIDiv();
    private HtmlOutputText espaco1 = new HtmlOutputText();
    private HtmlOutputText espaco2 = new HtmlOutputText();
    private HtmlForm form1 = new HtmlForm();
    private HtmlOutputText texto1 = new HtmlOutputText();
    private HtmlOutputText texto2 = new HtmlOutputText();
    private HtmlOutputText texto3 = new HtmlOutputText();
    
    private HtmlCommandButton botao1 = new HtmlCommandButton();
    
    private HtmlCalendar calendarioDe = new HtmlCalendar();
    private HtmlCalendar calendarioAte = new HtmlCalendar();
    
    private String load;
    private HtmlOutputText title = new HtmlOutputText();

    public String getLoad() 
    {
        try 
        {
            Conteudo_Estatico conteudo_estatico1 = new Conteudo_Estatico();
            FacesContext fc = FacesContext.getCurrentInstance();
            Navegacao navegacao1 = new Navegacao(fc, "relatorioProdutosVendidos");
            Conteudo conteudo1 = navegacao1.getConteudo1();
            //********************CONTEUDO PRINCIPAL*********************************
            
            title.setEscape(false);
            title.setValue("<title>Berkeley - Equipamentos Médicos, Hospitalares e Simuladores</title>");

            titulo1.setValue("<h1>Relatório de produtos vendidos</h1>");
            titulo1.setEscape(false);
            output1.getChildren().add(titulo1);
            
            //Formulário de Busca
            texto1.setValue("De: ");
            texto2.setValue("Até: ");
            espaco1.setValue("&nbsp;&nbsp;&nbsp;");
            espaco2.setValue("&nbsp;&nbsp;&nbsp;");
            espaco1.setEscape(false);
            espaco2.setEscape(false);
            botao1.setValue("Buscar");
            
            calendarioDe.setPopup(true);
            calendarioDe.setDatePattern("d/M/yyyy");
            calendarioDe.setAjaxSingle(true);
            
            calendarioAte.setPopup(true);
            calendarioAte.setDatePattern("d/M/yyyy");
            
            texto3.setValue("texto a trocar");

            form1.setSubmitted(true);
            form1.getChildren().add(texto1);
            form1.getChildren().add(getCalendarioDe());
            form1.getChildren().add(espaco1);
            form1.getChildren().add(texto2);
            form1.getChildren().add(getCalendarioAte());
            form1.getChildren().add(espaco2);
            form1.getChildren().add(botao1);
            form1.getChildren().add(texto3);
            
            botao1.setAction(fc.getApplication().createMethodBinding("#{RelatorioProdutosVendidos.gerarRelatorio}", null));
            
            divBusca.setStyleclass("esquerda");
            divBusca.getChildren().add(form1);
            
            output1.getChildren().add(divBusca);
        } 
        catch (Exception e) 
        {
            Logging.Excecao(e, "gestao.paginas.Principal.getLoad");
            return null;
        }
        return load;
    }
    
        public void gerarRelatorio() throws IOException, ParseException 
        {  
           FacesContext context = FacesContext.getCurrentInstance();  
           HttpServletResponse response = (HttpServletResponse) context.getExternalContext().getResponse();  
           InputStream reportStream = context.getExternalContext().getResourceAsStream("/relatorios/produtos.jasper");  
              
           response.setContentType("application/pdf");  
           response.setHeader("Content-disposition", "attachment;filename=RelatorioDeProdutos.pdf");  
             
           ServletOutputStream servletOutputStream = response.getOutputStream();  
           
           String parametro1 = (String)calendarioDe.get
           String paramentros1[] = parametro1.split("/");
           
           parametro1 = paramentros1[2] + "-" + paramentros1[1]  + "-" + paramentros1[0];
           
           String parametro2 = (String)calendarioAte.getValue();
           String paramentros2[] = parametro1.split("/");
           
           parametro2 = paramentros2[2] + "-" + paramentros2[1]  + "-" + paramentros2[0];
           
           Map parameters = new HashMap();  
           parameters.put("dataIni",parametro1);
           parameters.put("dataFim",parametro2);
           texto3.setValue((String)calendarioDe.getValue() + "  -  " + (String) calendarioAte.getValue());
           try 
           {  
               JasperRunManager.runReportToPdfStream(reportStream, servletOutputStream, parameters, Coneccao.getConnection());
           } 
           catch (JRException e) 
           {  
               e.printStackTrace();  
           }    
           context.responseComplete();  
           servletOutputStream.flush();  
           servletOutputStream.close();  
       }  
    
    public HtmlOutputText getOutput1() {
        return output1;
    }

    public HtmlOutputText getTitle() {
        return title;
    }

    public HtmlOutputText getTitulo1() {
        return titulo1;
    }

    public HtmlCalendar getCalendarioDe() {
        return calendarioDe;
    }

    public void setCalendarioDe(HtmlCalendar calendarioDe) {
        this.calendarioDe = calendarioDe;
    }

    public HtmlCalendar getCalendarioAte() {
        return calendarioAte;
    }

    public void setCalendarioAte(HtmlCalendar calendarioAte) {
        this.calendarioAte = calendarioAte;
    }

}