code: public void openLoginTarget(String loginTarget, boolean isPublicPC) {
  
          // login was successful, remove login init data from session
          VaadinService.getCurrentRequest().getWrappedSession().removeAttribute(INIT_DATA_SESSION_ATTR);
          m_targetOpener.openTarget(loginTarget, isPublicPC);
      }
docs: Opens the login target for a logged in user.<p>
  
  @param loginTarget the login target
  @param isPublicPC the public PC flag