code: public void setLoginPage(String path)
      {
          if (!path.startsWith("/"))
          {
              log.warn("form-login-page must start with /");
              path="/"+path;
          }
          _formLoginPage=path;
          _formLoginPath=path;
          if (_formLoginPath.indexOf('?')>0)
              _formLoginPath=_formLoginPath.substring(0,_formLoginPath.indexOf('?'));
      }
docs: /* ------------------------------------------------------------