docs: private void checkDuplicate() {
  		KeyboardShortcut ks = this.getDuplicate();
  		if (ks != null) {
  			this.setFieldValue(FIELD_INFO, Constant.messages.getString("keyboard.dialog.warning.dup", ks.getName()));
  		} else {
  			this.setFieldValue(FIELD_INFO, "");
  		}
  	}