code: 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;
      }
docs: 274538 -- internal utility method added.
  This internal utility method is used to convert the os.version string to a integer value
  so that DB2 support can be determined based on version and release level.
  
  @return int : The numeric value of the os400 VRM such as 530 for the string "V5R3M0"