src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/ModuleWriterImpl.java

*** 186,196 ****
      @Override
      public Content getModuleHeader(String heading) {
          HtmlTree bodyTree = getBody(getWindowTitle(mdle.getQualifiedName().toString()));
          Content headerContent = new ContentBuilder();
          addTop(headerContent);
!         navBar.setDisplaySummaryModuleDescLink(!utils.getFullBody(mdle).isEmpty() && !configuration.nocomment);
          navBar.setDisplaySummaryModulesLink(display(requires) || display(indirectModules));
          navBar.setDisplaySummaryPackagesLink(display(packages) || display(indirectPackages)
                  || display(indirectOpenPackages));
          navBar.setDisplaySummaryServicesLink(displayServices(uses, usesTrees) || displayServices(provides.keySet(), providesTrees));
          navBar.setUserHeader(getUserHeaderFooter(true));
--- 186,196 ----
      @Override
      public Content getModuleHeader(String heading) {
          HtmlTree bodyTree = getBody(getWindowTitle(mdle.getQualifiedName().toString()));
          Content headerContent = new ContentBuilder();
          addTop(headerContent);
!         navBar.setDisplaySummaryModuleDescLink(!utils.getFullBody(mdle).isEmpty() && !options.noComment);
          navBar.setDisplaySummaryModulesLink(display(requires) || display(indirectModules));
          navBar.setDisplaySummaryPackagesLink(display(packages) || display(indirectPackages)
                  || display(indirectOpenPackages));
          navBar.setDisplaySummaryServicesLink(displayServices(uses, usesTrees) || displayServices(provides.keySet(), providesTrees));
          navBar.setUserHeader(getUserHeaderFooter(true));