@NotNull
      @Override
      protected JBTableRowEditor getRowEditor(ParameterTableModelItemBase<ParamInfo> item) {
        JBTableRowEditor editor = ChangeSignatureDialogBase.this.getTableEditor(getTable(), item);
        LOG.assertTrue(editor != null);
        return editor;
      }
@NotNull
      @Override
      protected JBTableRowEditor getRowEditor(ParameterTableModelItemBase<ParamInfo> item)