public void formSubmit() {
public void formSubmit(IRequestCycle cycle) {
    public void formSubmit() {        Collection selectedRows = getGatewaysToDelete();        if (selectedRows != null) {            getGatewayContext().deleteGateways(selectedRows);        }        selectedRows = getGatewaysToPropagate();        if (selectedRows != null) {            propagateGateways(selectedRows);        }    }