@Override
    public int hashCode() {
        int result = commonName != null ? commonName.hashCode() : 0;
        result = 31 * result + (directory != null ? directory.hashCode() : 0);
        result = 31 * result + (sentBy != null ? sentBy.hashCode() : 0);
        result = 31 * result + (language != null ? language.hashCode() : 0);
        result = 31 * result + (calAddress != null ? calAddress.hashCode() : 0);
        return result;
    }