code: protected void addAllClasses(Content content, boolean wantFrames) {
          for (int i = 0; i < indexbuilder.elements().length; i++) {
              Character unicode = (Character)((indexbuilder.elements())[i]);
              addContents(indexbuilder.getMemberList(unicode), wantFrames, content);
          }
      }
docs: Use the sorted index of all the classes and add all the classes to the
  content list.
  
  @param content HtmlTree content to which all classes information will be added
  @param wantFrames True if we want frames.