docs: public static MysqlGTIDSet parse(String gtidData) {
          Map<String, UUIDSet> m;
  
          if (gtidData == null || gtidData.length() < 1) {
              m = new HashMap<String, UUIDSet>();
          } else {
              // 存在多个GTID时会有回车符
              String[] uuidStrs = gtidData.replaceAll("\n", "").split(",");
              m = new HashMap<String, UUIDSet>(uuidStrs.length);
              for (int i = 0; i < uuidStrs.length; i++) {
                  UUIDSet uuidSet = UUIDSet.parse(uuidStrs[i]);
                  m.put(uuidSet.SID.toString(), uuidSet);
              }
          }
  
          MysqlGTIDSet gs = new MysqlGTIDSet();
          gs.sets = m;
  
          return gs;
      }