code: public void buildClassConstantSummary(XMLNode node, Content summariesTree)
              throws DocletException {
          SortedSet<TypeElement> classes = !currentPackage.isUnnamed()
                  ? utils.getAllClasses(currentPackage)
                  : configuration.typeElementCatalog.allUnnamedClasses();
          Content classConstantTree = writer.getClassConstantHeader();
          for (TypeElement te : classes) {
              if (!typeElementsWithConstFields.contains(te) ||
                  !utils.isIncluded(te)) {
                  continue;
              }
              currentClass = te;
              //Build the documentation for the current class.
              buildChildren(node, classConstantTree);
          }
          writer.addClassConstant(summariesTree, classConstantTree);
      }
docs: Build the summary for the current class.
  
  @param node the XML element that specifies which components to document
  @param summariesTree the tree to which the class constant summary will be added
  @throws DocletException if there is a problem while building the documentation