@Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + (int) (beginTimestamp ^ (beginTimestamp >>> 32));
        result = prime * result + (int) (endTimeStamp ^ (endTimeStamp >>> 32));
        result = prime * result + (int) (id ^ (id >>> 32));
        result = prime * result + ((message == null) ? 0 : message.hashCode());
        return result;
    }