@Override
    public Component getListCellRendererComponent(JList<? extends ICPBrasilTimeStamp> jlist, ICPBrasilTimeStamp e, int i, boolean bln, boolean bln1) {
        ICPBrasilCertificate cert = null;
        String label = null;
        try {
            cert = e.getSignerCertificate();
        }
        catch (CertificateException | IOException ex) {
            Logger.getLogger(TimeStampRenderer.class.getName()).log(Level.SEVERE, null, ex);
        }
        if(cert != null){
            label = cert.getSubjectSimpleName() + "("+dateFormat.format(e.getSignedTime())+")";
        }
        else{
            label = dateFormat.format(e.getSignedTime());
        }
        JLabel l = (JLabel) listRenderer.getListCellRendererComponent(jlist, label, i, bln, bln1);
        return l;
    }