Map<String, Map<String, Object>> additinalLinks = new HashMap<String, Map<String, Object>>();
Map<String, Object> managerLink = new HashMap<String, Object>();
managerLink.put("EmployeeId", "1");
additinalLinks.put("ne_Manager", managerLink);
EntityProviderWriteProperties properties =
EntityProviderWriteProperties.fromProperties(DEFAULT_PROPERTIES).omitJsonWrapper(true).contentOnly(true)
.expandSelectTree(expandSelectTreeNode).additionalLinks(additinalLinks).build();
final ODataResponse response = new JsonEntityProvider().writeEntry(entitySet, employeeData, properties);
// System.out.println(StringHelper.inputStreamToString((InputStream) response.getEntity()));
Map<String, Object> employee =