@Nullable
  @Override
  protected ValidationInfo doValidate() {
    try {
      myTrunkUrl = createUrl(myTrunkLocationTextField.getText(), false);
    }
    catch (SvnBindException e) {
      return new ValidationInfo(e.getMessage(), myTrunkLocationTextField.getTextField());
    }

    if (!isAncestor(myRootUrl, myTrunkUrl) || myTrunkUrl.equals(myRootUrl)) {
      return new ValidationInfo(message("configure.branches.error.wrong.url", myRootUrl), myTrunkLocationTextField.getTextField());
    }

    return null;
  }
@Nullable
  @Override
  protected ValidationInfo doValidate()