@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		DataTransportToken other = (DataTransportToken) obj;
		if (messageId != other.messageId)
			return false;
		if (sessionId == null) {
			if (other.sessionId != null)
				return false;
		} else if (!sessionId.equals(other.sessionId))
			return false;
		return true;
	}