@Override
    public TableCellEditor getEditor(Item pair) {
      ExtendableTextField cellEditor = new ExtendableTextField();
      cellEditor.putClientProperty(DarculaUIUtil.COMPACT_PROPERTY, Boolean.TRUE);

      new ComponentValidator(validatorsDisposable).withValidator(() -> {
        String text = cellEditor.getText();
        boolean hasError = !StringUtil.isEmpty(text) && !ourPackagePattern.matcher(text).matches();
        ValidationUtils.setExtension(cellEditor, ValidationUtils.ERROR_EXTENSION, hasError);

        return validationInfoProducer.apply(text, cellEditor);
      }).andRegisterOnDocumentListener(cellEditor).installOn(cellEditor);

      return new DefaultCellEditor(cellEditor);
    }
@Override
    public TableCellEditor getEditor(Item pair)