TLN disappears, If I use the XSSEncoder class

INavigationService navigationService = (INavigationService) PortalRuntime.getRuntimeResources().getService(INavigationService.KEY);

List arrayListNodes = new ArrayList();

if (level == 0) navigationNodes = getNavNodes();

if (navigationNodes == null) return arrayListNodes;

Iterator iteratorNodes = navigationNodes.iterator();

INavigationNode navigationNode = null;

while (iteratorNodes.hasNext())

{

navigationNode = (INavigationNode) iteratorNodes.next();

title = CommonUtil.checkNull(navigationNode.getTitle(this.locale));

if (title.equals("-")) title = parentTitle;

else title = title.replaceAll("\r\n", "");

menuPath = StringUtils.escapeToJS(navigationNode.getName());

navigationNode = navigationService.getNode(this.environment, menuPath);

.

.

.

public NavigationNodes getNavNodes () throws Exception

  {

  INavigationService service = (INavigationService) PortalRuntime.getRuntimeResources().getService(INavigationService.KEY);

  NavigationNodes initialNodes = null;

  try {

  initialNodes = service.getInitialNodes(this.environment);

  } catch (NamingException ne) {

  ne.printStackTrace();

  }

  return initialNodes;

  }