docs: public String getVersionFromSchemaLocation(String schemaLocation)
      {
          MessageVersion recMessageVersion = this.getMessageVersion();
          recMessageVersion.close();
          try {
              while (recMessageVersion.hasNext())
              {
                  recMessageVersion.next();
                  String messageSchemaLocation = this.getSchemaLocation(recMessageVersion, DBConstants.BLANK);
                  if (schemaLocation.startsWith(messageSchemaLocation))
                      return recMessageVersion.getField(MessageVersion.CODE).toString();
              }
          } catch (DBException e) {
              e.printStackTrace();
          }
          return null;
      }