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

*** 167,180 ****
          contentTree.add(dl);
      }
  
      protected void addHeading(Character uc, Content contentTree) {
          String unicode = uc.toString();
-         contentTree.add(getMarkerAnchorForIndex(unicode));
          Content headContent = new StringContent(unicode);
!         Content heading = HtmlTree.HEADING(Headings.CONTENT_HEADING, false,
                  HtmlStyle.title, headContent);
          contentTree.add(heading);
      }
  
      @SuppressWarnings("preview")
      protected void addDescription(Content dl, Element element) {
--- 167,180 ----
          contentTree.add(dl);
      }
  
      protected void addHeading(Character uc, Content contentTree) {
          String unicode = uc.toString();
          Content headContent = new StringContent(unicode);
!         HtmlTree heading = HtmlTree.HEADING(Headings.CONTENT_HEADING, false,
                  HtmlStyle.title, headContent);
+         heading.setId(getNameForIndex(unicode));
          contentTree.add(heading);
      }
  
      @SuppressWarnings("preview")
      protected void addDescription(Content dl, Element element) {
*** 410,429 ****
          addPreQualifiedClassLink(LinkInfoImpl.Kind.INDEX, containing,
                  false, contentTree);
      }
  
      /**
-      * Get the marker anchor which will be added to the index documentation tree.
-      *
-      * @param anchorNameForIndex the anchor name attribute for index page
-      * @return a content tree for the marker anchor
-      */
-     public Content getMarkerAnchorForIndex(String anchorNameForIndex) {
-         return links.createAnchor(getNameForIndex(anchorNameForIndex));
-     }
- 
-     /**
       * Generate a valid HTML name for member index page.
       *
       * @param unicode the string that needs to be converted to valid HTML name.
       * @return a valid HTML name string.
       */
--- 410,419 ----