Null Pointer - Relatorio Jasper [RESOLVIDO]

public class RelatorioQtdAgendamentoDiaPerito extends HttpServlet {
    private static final long serialVersionUID = -5506132259589301021L;
    private Logger logger = Logger.getLogger(RelatorioQtdAgendamentoDiaPerito.class);

    /**
     * 
     * @param req
     * @param res
     * @throws javax.servlet.ServletException
     * @throws java.io.IOException
     */
    @SuppressWarnings("unchecked")
    @Override
    protected void service(HttpServletRequest req, HttpServletResponse res)
            throws ServletException, IOException {

        String sep = File.separator;

        logger.info("Criando uma conexão ...");
        DBConnectMySQL dao = null;
        try {
            dao = new DBConnectMySQL();
        } catch (SQLException ex) {
            logger.error(ex);
        } catch (InstantiationException ex) {
            logger.error(ex);
        } catch (IllegalAccessException ex) {
            logger.error(ex);
        } catch (ClassNotFoundException ex) {
            logger.error(ex);
        }
        logger.info("Conexão: " + dao.getConnection());

        String path = getServletContext().getRealPath("/");
        String pathJasper =
                new StringBuilder()
                    .append(path)
                    .append("content")
                    .append(sep)
                    .append("reports")
                    .append(sep)
                    .toString();
        String pathImages =
                new StringBuilder()
                    .append(path)
                    .append("content")
                    .append(sep)
                    .append("images")
                    .append(sep)
                    .toString();

        logger.info("Inserindo parametros no Map ...");
        Map parametros = new HashMap();
        parametros.put("SUBREPORT_DIR", pathJasper);
        parametros.put("IMAGES_URI", pathImages);
        parametros.put("DATAINICIAL", req.getParameter("dataInicial"));
        parametros.put("DATAFINAL", req.getParameter("dataFinal"));

        try {
            logger.info("Caminho      : " + path);
            logger.info("CaminhoJasper: " + pathJasper);
            logger.info("CaminhoImages: " + pathImages);
            logger.info("Parametros   : " + parametros);
            logger.info(pathJasper + "RelatorioQtdAgendamentoDiaPeritoSAPE.pdf");
            
            logger.info("Criando impressão ...");
            JasperPrint impressao = JasperFillManager.fillReport(
                    new StringBuilder()
                        .append(pathJasper)
                        .append("RelatorioQtdAgendamentoDiaPeritoSAPE.jasper")
                        .toString(),
                    parametros,
                    dao.getConnection()
                    );

            logger.info("Exportando o pdf ...");
            JasperExportManager.exportReportToPdfFile(
                    impressao,
                    new StringBuilder()
                        .append(path)
                        .append("Relatorio")
                        .append(sep)
                        .append("RelatorioQtdAgendamentoDiaPeritoSAPE.pdf")
                        .toString()
                    );
            
            logger.info("Redirecionando para o pdf ...");
            res.sendRedirect("RelatorioQtdAgendamentoDiaPeritoSAPE.pdf");
        } catch (Exception ex) {
            logger.error("Erro ao gerar o relatorio: " + ex);
        } finally {
            if ( dao != null &&  dao.getConnection() != null) {
                try {
                    dao.connectionClose();
                } catch (SQLException ex) {
                    logger.error(ex);
                }
            }
        }
    }
}