(swing) relatório não aparece no preview [RESOLVIDO]

public void imprimirAudienciaButton_action(ActionEvent e) throws ParseException, JRException {
       DateFormat formatter = new SimpleDateFormat("dd/MM/yyyy");

       controlDataInicial.setDefaultDate(Calendar.getInstance(Locale.ENGLISH));
       controlDataFinal.setDefaultDate(Calendar.getInstance(Locale.ENGLISH));

       dtInicial = formatter.format(controlDataInicial.getDate());
       dtFinal  = formatter.format(controlDataFinal.getDate());

       dataInicial = new java.sql.Date(formatter.parse(dtInicial).getTime());
       System.out.println( formatter.format(dataInicial) );
       dataFinal  = new java.sql.Date(formatter.parse(dtFinal).getTime());
       System.out.println( formatter.format(dataFinal) );

       RelatorioMBean relAudiencia = new RelatorioMBean(conn);

       HashMap map = new HashMap  ();
       relAudiencia.geraRelatorio("/relatorios/relaudiencia.jasper",dataInicial,dataFinal, map);

  }

public class RelatorioMBean   { 
	//extends AbstractCrudBean<Relatorio> {
    public Connection conn  = null;

	public RelatorioMBean(Connection conn) throws JRException {
           this.conn = conn;
	}

//    public static void main(String[] args) throws JRException, Exception {
//        new geraRelatorio();
//    }

    public void geraRelatorio(String pathReport, Date dataInicial, Date dataFinal) throws JRException {
        HashMap map = new HashMap();
        geraRelatorio(pathReport, dataInicial, dataFinal, map);
    }

    public void geraRelatorio(String pathReport, Date dataInicial, Date dataFinal, HashMap map) throws JRException {
        map.put("DATAINI",dataInicial);
        map.put("DATAFIM",dataFinal);

        geraRelatorio(pathReport, map);
    }

    public void geraRelatorio(String pathReport, HashMap map) throws JRException {
        //supondo que o teu ficheiro teste.jasper esteja dentro da tiua aplicação
         Map<String, Object> parametros = new HashMap<String, Object>();
	URL reportURL = RelatorioMBean.class.getResource(pathReport);
	String reportDir = reportURL.getFile();
//	parametros.put("REPORT_PATH", reportDir);
        

	URL relatorioURL = RelatorioMBean.class.getResource(pathReport);

//        File file = new File(relatorioURL.getFile());
//        JasperReport relatorioJasper = (JasperReport) JRLoader.loadObject(relatorioURL);


        JasperReport jr = (JasperReport) JRLoader.loadObject(relatorioURL);
        JasperPrint jp = JasperFillManager.fillReport(jr, map, conn);
        JasperViewer jv = new JasperViewer(jp, false);
        jv.setVisible(true);

    }