else if (this.hlist == null) return false; return this.hlist.equals(that.hlist);
	public boolean equals(Object other) {		if (!this.getClass().equals(other.getClass()))			return false;		SIPHeaderList that = (SIPHeaderList) other;		if (this.hlist == that.hlist)			return true;		else if (this.hlist == null)			return false;		return this.hlist.equals(that.hlist);	}