Item signal = getChild(SystemItem.SIGNAL); removeChild(SystemItem.SIGNAL); destroyChild(signal);  Item signalMemory = getChild(SystemItem.SIGNAL_MEMORY); removeChild(SystemItem.SIGNAL_MEMORY); destroyChild(signalMemory);
    public void finalizz() throws Exception {        Item signal = getChild(SystemItem.SIGNAL);        removeChild(SystemItem.SIGNAL);        destroyChild(signal);        Item signalMemory = getChild(SystemItem.SIGNAL_MEMORY);        removeChild(SystemItem.SIGNAL_MEMORY);        destroyChild(signalMemory);        super.finalizz();    }