Problema JSF 1.2 Jasper Reports exportar html

Gostaria de saber se alguém pode me ajudar, estou usando jsf 1.2 e jasper 4.1.3, o codigo Funcioanar perfeitamente, o problema é que está renderizando o html na mesma pagina tipo em cima do formulario.

[code]public void relatorioVencimentosHtml() {
FacesContext faces = FacesContext.getCurrentInstance();
HttpServletResponse response = (HttpServletResponse) faces.getExternalContext().getResponse();
HttpServletRequest request = (HttpServletRequest) faces.getExternalContext().getRequest();

	String logo = getDiretorioReal("/imagens/mr/logoADA.jpg"); 
	String jasper = getDiretorioReal("/jasper/vencimentos.jasper");  
	String titulo = "Relatório Vencimento";
	
	// Parametros do relatorios
	Map<String, Object> parametros = new HashMap<String, Object>();
	parametros.put("P_LOGO", logo);
	parametros.put("P_TITULO", titulo);
	
	try {
		PrintWriter printWriter = response.getWriter();  
		ByteArrayOutputStream byteOutStream = new ByteArrayOutputStream();
		JasperPrint jasperPrint = JasperFillManager.fillReport(jasper, parametros, conexao);
		
		JRHtmlExporter jrHtmlExporter = new JRHtmlExporter();

        response.setContentType("text/html");  
        response.setCharacterEncoding("ISO-8859-1");
        request.getSession().setAttribute(ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE, jasperPrint); 
        
        jrHtmlExporter.setParameter(JRHtmlExporterParameter.JASPER_PRINT, jasperPrint);
        jrHtmlExporter.setParameter(JRExporterParameter.OUTPUT_WRITER, printWriter);  
        jrHtmlExporter.setParameter(JRExporterParameter.CHARACTER_ENCODING,"ISO-8859-1");  
                      
        //jrHtmlExporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, true);
        // To generate a HTML report we want configure ImageServlet in component.xml file of reporting UI bundle
        // Then want to set the  IMAGES_URI parameter
        jrHtmlExporter.setParameter(JRHtmlExporterParameter.IMAGES_URI, request.getContextPath() + "/image.servlet?image=");
        //  remove empty spaces
        jrHtmlExporter.setParameter(JRHtmlExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS, Boolean.TRUE);
        jrHtmlExporter.setParameter(JRHtmlExporterParameter.IS_WHITE_PAGE_BACKGROUND, Boolean.TRUE);
        jrHtmlExporter.setParameter(JRHtmlExporterParameter.OUTPUT_STREAM, byteOutStream);
        jrHtmlExporter.exportReport();
        
	} catch (RuntimeException e) {
		throw e;
	} catch (Exception e) {
		System.err.println(e.getMessage());
		throw new FacesException(e);
	}
	finally{
		try {
			conexao.close();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}[/code]

Conseguiu resolver isto?