protected void addToCachedList(OMGraphic omg, String featureType, PrimitiveTable pt) {
protected synchronized void addToCachedList(OMGraphic omg, String featureType, PrimitiveTable pt, String type) {
    protected void addToCachedList(OMGraphic omg, String featureType, PrimitiveTable pt) {        if (featureCache != null) {            featureCache.addToCachedList(omg, featureType, pt);        } else {            // Main OMGraphicList stored in super class            graphics.add(omg);        }    }