docs: public static long getZxidFromName(String name, String prefix) {
          long zxid = -1;
          String nameParts[] = name.split("\\.");
          if (nameParts.length == 2 && nameParts[0].equals(prefix)) {
              try {
                  zxid = Long.parseLong(nameParts[1], 16);
              } catch (NumberFormatException e) {
              }
          }
          return zxid;
      }