contact.addListener(Connector.Error,
                    new Listener<ConnectorEvent>() {
                        @Override
                        public void handleEvent(ConnectorEvent be)
                                throws JaxmppException {
                            if (be.getType() == Connector.Error
                                    && be.getCaught() != null) {
                                Throwable throwable = extractCauseException(be
                                        .getCaught());
                                if (throwable instanceof SecureTrustManagerFactory.DataCertificateException) {
                                    certException = (DataCertificateException) throwable;
                                    data.put("account", contact
                                            .getSessionObject()
                                            .getUserBareJid().toString());

                                }
                            }
                        }
                    });