class KMLSpatialTemporalUtils {

    static synchronized Date getExpiresHeaderTime(String expiresHeader)
    {
        Date expires = null;
        if (!StringUtils.isBlank(expiresHeader))
        {
            expires = getExpiresHeaderTime(expiresHeader, RFC_1123_DATE_FORMAT1);
            if (expires == null)
            {
                expires = getExpiresHeaderTime(expiresHeader, RFC_1123_DATE_FORMAT2);
            }
        }
        return expires;
    }

    private  KMLSpatialTemporalUtils();

}