@Nullable
  @Override
  protected ValidationInfo doValidate() {
    try {
      mySelected = createUrl(myComboField.getText().trim(), false);
      return null;
    }
    catch (SvnBindException e) {
      return new ValidationInfo(message("dialog.message.could.not.parse.url"), myCombo);
    }
  }
@Nullable
  @Override
  protected ValidationInfo doValidate()