code: public void buildEnumSummary(XMLNode node, Content summaryContentTree) {
          String enumTableSummary =
                  configuration.getText("doclet.Member_Table_Summary",
                  configuration.getText("doclet.Enum_Summary"),
                  configuration.getText("doclet.enums"));
          List<String> enumTableHeader = Arrays.asList(configuration.getText("doclet.Enum"),
                  configuration.getText("doclet.Description"));
          SortedSet<TypeElement> elist = utils.isSpecified(packageElement)
              ? utils.getTypeElementsAsSortedSet(utils.getEnums(packageElement))
              : configuration.typeElementCatalog.enums(packageElement);
          SortedSet<TypeElement> enums = utils.filterOutPrivateClasses(elist, configuration.javafx);
          if (!enums.isEmpty()) {
              packageWriter.addClassesSummary(enums,
                      configuration.getText("doclet.Enum_Summary"),
                      enumTableSummary, enumTableHeader, summaryContentTree);
          }
      }
docs: Build the summary for the enums in this package.
  
  @param node the XML element that specifies which components to document
  @param summaryContentTree the summary tree to which the enum summary will
  be added