docs: public static String formatPropertyName(final String value)
      {
          String formattedValue = Generators.toLowerFirstChar(value);
  
          if (ValidationUtil.isJavaKeyword(formattedValue))
          {
              final String keywordAppendToken = System.getProperty(SbeTool.KEYWORD_APPEND_TOKEN);
              if (null == keywordAppendToken)
              {
                  throw new IllegalStateException(
                      "Invalid property name='" + formattedValue +
                      "' please correct the schema or consider setting system property: " + SbeTool.KEYWORD_APPEND_TOKEN);
              }
  
              formattedValue += keywordAppendToken;
          }
  
          return formattedValue;
      }