@NotNull
  @Override
  protected EditorHighlighter createHighlighter(boolean forceEmpty) {
    if (!forceEmpty) {
      CharSequence text = editor.getDocument().getImmutableCharSequence();
      EditorHighlighter highlighter = DiffUtil.initEditorHighlighter(project, myContent, text);
      if (highlighter != null) {
        return highlighter;
      }
    }
    return DiffUtil.createEmptyEditorHighlighter();
  }
@NotNull
  @Override
  protected EditorHighlighter createHighlighter(boolean forceEmpty)