docs: public Authentication getAuthentication(String token) {
  		if (null != token) {
  			TokenContainer container = tokens.get(token);
  			if (null != container) {
  				if (container.isValid()) {
  					return container.getAuthentication();
  				} else {
  					logout(token);
  				}
  			}
  		}
  		return null;
  	}