@Nullable
        @Override
        public String getErrorText(@NlsSafe String inputString) {
          final int selectedRow = myTable.getSelectedRow();
          if (!isValidName(inputString, selectedRow)) {
            return RefactoringBundle.message("text.identifier.invalid", inputString);
          }
          return null;
        }
@Nullable
        @Override
        public String getErrorText(@NlsSafe String inputString)