String nodeId = node.getId();
json.put("label", node.getEncodedResolvedLabel());
json.put("hasChild", tnode.hasChild());
json.put("isExpanded", tnode.isExpanded());
json.put("collapseURL", uiPortalNavigation.url("CollapseNode", nodeId));
ResourceURL rsURL = res.createResourceURL();
rsURL.setResourceID(nodeId);
json.put("getNodeURL", rsURL.toString());