setChild(SystemItem.SIGNAL_MEMORY, createChild(getCategory(SystemItem.SIGNAL_MEMORY))); setChild(SystemItem.SIGNAL, createChild(getCategory(SystemItem.SIGNAL)));
    public void initialize() throws Exception {        super.initialize();        setChild(SystemItem.SIGNAL_MEMORY, createChild(getCategory(SystemItem.SIGNAL_MEMORY)));        setChild(SystemItem.SIGNAL, createChild(getCategory(SystemItem.SIGNAL)));    }