private static void initializeWindowIcons(final JDialog dlg) {
    final List<Image> imageList = new ArrayList<>();
    imageList.add(ResourceUtils.getImageIcon(Constants.APP_ICON_PATH_16X16).getImage());
    imageList.add(ResourceUtils.getImageIcon(Constants.APP_ICON_PATH_32X32).getImage());
    imageList.add(ResourceUtils.getImageIcon(Constants.APP_ICON_PATH_48X48).getImage());

    dlg.setIconImages(imageList);
  }
You are not supposed to instantiate this class.
java/ui/src/main/java/com/google/security/zynamics/bindiff/gui/dialogs/ProgressDialog.java