docs: protected static final int generateVersionNumber(String s) {
          int i = -1;
          StringTokenizer stringtokenizer = new StringTokenizer(s, "VRM", false);
          if (stringtokenizer.countTokens() == 3) {
              String s1 = stringtokenizer.nextToken();
              s1 = s1 + stringtokenizer.nextToken();
              s1 = s1 + stringtokenizer.nextToken();
              i = Integer.parseInt(s1);
          }
          return i;
      }