}
if (folder) {
boolean siblingMode = "siblingLeafOnly".equals(tree.getAttributes().get(Attributes.SELECTABLE));
ResponseWriterDivider divider = ResponseWriterDivider.getInstance(facesContext, TreeListboxRenderer.DIVIDER);
boolean alreadyExists = divider.activateBranch(facesContext);
writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
if (!alreadyExists) {
writer.startElement(HtmlElements.DIV, null);
writer.writeClassAttribute(Classes.create(tree, "level"));
Style levelStyle = new Style();