code: public void buildSerialUIDInfo(XMLNode node, Content classTree) {
          Content serialUidTree = writer.getSerialUIDInfoHeader();
          for (FieldDoc field : currentClass.fields(false)) {
              if (field.name().equals("serialVersionUID") &&
                  field.constantValueExpression() != null) {
                  writer.addSerialUIDInfo(SERIAL_VERSION_UID_HEADER,
                                          field.constantValueExpression(), serialUidTree);
                  break;
              }
          }
          classTree.addContent(serialUidTree);
      }
docs: Build the serial UID information for the given class.
  
  @param node the XML element that specifies which components to document
  @param classTree content tree to which the serial UID information will be added