docs: public void validateFields() throws IllegalStateException {
  		for (String rf : requiredFields)
  			if (textFields.get(rf).getText().trim().isEmpty()) {
  				textFields.get(rf).requestFocusInWindow();
  				throw new IllegalStateException(Constant.messages.getString(
  						"authentication.method.script.dialog.error.text.required", rf));
  			}
  	}