@Nullable
  public static @NlsSafe String getPresentableClassName(@Nullable String rtClassName) {
    if (StringUtil.isEmpty(rtClassName)) {
      return null;
    }

    int lastDot = rtClassName.lastIndexOf('.');
    return lastDot == -1 || lastDot == rtClassName.length() - 1 ? rtClassName : rtClassName.substring(lastDot + 1);
  }
@Nullable
  public static @NlsSafe String getPresentableClassName(@Nullable String rtClassName)