try {
GridFTPContactInfo contactInfo = new GridFTPContactInfo(dirURI.getHost(), dirURI.getPort());
srcClient = new GridFTPClient(contactInfo.hostName, contactInfo.port);
srcClient.setAuthorization(new HostAuthorization(GridFtp.HOST));
srcClient.authenticate(gssCred);
srcClient.setDataChannelAuthentication(DataChannelAuthentication.SELF);
srcClient.setType(Session.TYPE_ASCII);
srcClient.changeDir(dirURI.getPath());
Vector<Object> fileInfo = null;