* The value is, e.g. cookie <br>
     * comment: Session tracking modes
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getSessionTrackingModes();

    /**
     * Get the value for the key 'cookie.search.parameter.keys'. <br>
     * The value is, e.g. q,num,sort <br>