Senseless unused code in jdk.javadoc.internal.doclets.formats.html.FieldWriterImpl.addComments():

    public void addComments(VariableElement field, Content fieldTree) {
        Element holder = field.getEnclosingElement();
        if (!utils.getInlineTags(field).isEmpty()) {
            if (holder.equals(typeElement) ||
                    (!utils.isPublic(holder) || utils.isLinkable((TypeElement)holder))) {
                writer.addInlineComment(field, fieldTree);
            } else {
                Content link =
                        writer.getDocLink(LinkInfoImpl.Kind.FIELD_DOC_COPY,
                        (TypeElement)holder, (Element)field,
                        utils.isIncluded(holder)
                                ? holder.asType().toString() : utils.getQualifiedTypeName(holder.asType()),
                            false);
............................

"holder.equals(typeElement)" can never be true for fields. It seems that this fragment was just copied from MethodWriterImpl (where it was used to count comments of overridden parent methods).