code: public Content seeTagOutput(Element holder, List<? extends DocTree> seeTags) {
          ContentBuilder body = new ContentBuilder();
          if (!seeTags.isEmpty()) {
              for (DocTree dt : seeTags) {
                  appendSeparatorIfNotEmpty(body);
                  body.addContent(htmlWriter.seeTagToContent(holder, dt));
              }
          }
          if (utils.isVariableElement(holder) && ((VariableElement)holder).getConstantValue() != null &&
                  htmlWriter instanceof ClassWriterImpl) {
              //Automatically add link to constant values page for constant fields.
              appendSeparatorIfNotEmpty(body);
              DocPath constantsPath =
                      htmlWriter.pathToRoot.resolve(DocPaths.CONSTANT_VALUES);
              String whichConstant =
                      ((ClassWriterImpl) htmlWriter).getTypeElement().getQualifiedName() + "." +
                      utils.getSimpleName(holder);
              DocLink link = constantsPath.fragment(whichConstant);
              body.addContent(htmlWriter.getHyperLink(link,
                      new StringContent(configuration.getText("doclet.Constants_Summary"))));
          }
          if (utils.isClass(holder) && utils.isSerializable((TypeElement)holder)) {
              //Automatically add link to serialized form page for serializable classes.
              if (SerializedFormBuilder.serialInclude(utils, holder) &&
                        SerializedFormBuilder.serialInclude(utils, utils.containingPackage(holder))) {
                  appendSeparatorIfNotEmpty(body);
                  DocPath serialPath = htmlWriter.pathToRoot.resolve(DocPaths.SERIALIZED_FORM);
                  DocLink link = serialPath.fragment(utils.getFullyQualifiedName(holder));
                  body.addContent(htmlWriter.getHyperLink(link,
                          new StringContent(configuration.getText("doclet.Serialized_Form"))));
              }
          }
          if (body.isEmpty())
              return body;
  
          ContentBuilder result = new ContentBuilder();
          result.addContent(HtmlTree.DT(HtmlTree.SPAN(HtmlStyle.seeLabel,
                  new StringContent(configuration.getText("doclet.See_Also")))));
          result.addContent(HtmlTree.DD(body));
          return result;
  
      }
docs: {@inheritDoc}