public @Nullable String getNormalizedUrl() {
    String url = StringUtil.nullize(myUrlField.getText(), true);
    if (url != null) {
      url = url.trim();
      if (!URLUtil.containsScheme(url)) {
        return VirtualFileManager.constructUrl(URLUtil.HTTP_PROTOCOL, url);
      }
    }
    return url;
  }
public @Nullable String getNormalizedUrl()