private Component createComponentsDirectly0(Reader reader, String ext, Component parent, Component insertBefore,
            VariableResolver resolver, Map<?, ?> arg) throws IOException {
        final Component[] cs = getUiEngine().createComponents(this, getPageDefinitionDirectly(reader, ext),
                getCurrentPage(), parent, insertBefore, resolver, arg);
        return cs.length > 0 ? cs[0] : null;