private static int convertFill(final GridBagConstraints gbc) {
    return switch (gbc.fill) {
      case GridBagConstraints.HORIZONTAL -> GridConstraints.FILL_HORIZONTAL;
      case GridBagConstraints.VERTICAL -> GridConstraints.FILL_VERTICAL;
      case GridBagConstraints.BOTH -> GridConstraints.FILL_BOTH;
      default -> GridConstraints.FILL_NONE;
    };
  }
private static int convertFill(final GridBagConstraints gbc)