docs: public TcpIpConfig addMember(String member) {
          String memberText = checkHasText(member, "member must contain text");
  
          StringTokenizer tokenizer = new StringTokenizer(memberText, ",");
          while (tokenizer.hasMoreTokens()) {
              String s = tokenizer.nextToken();
              this.members.add(s.trim());
          }
  
          return this;
      }