code: public boolean getUserInfo(ProviderAuthenticationResult oidcResult,
              SSLSocketFactory sslSocketFactory, String accessToken, String subjectFromIdToken) {
  
          if (!willRetrieveUserInfo() || accessToken == null) {
              return false;
          }
          String userInfoStr = getUserInfoFromURL(clientConfig, sslSocketFactory, accessToken);
  
          if (userInfoStr == null) {
              return false;
          }
  
          if (!isUserInfoValid(userInfoStr, subjectFromIdToken)) {
              return false;
          }
  
          updateAuthenticationResultPropertiesWithUserInfo(oidcResult, userInfoStr);
          return true;
      }
docs: get userinfo from provider's UserInfo Endpoint if configured and active.
  If successful, update properties in the ProviderAuthenticationResult
  
  @return true if PAR was updated with userInfo