hi @anupampat Tag tagPath = Objects.requireNonNull(tagManager).resolve(tagName);in Servlet doGet method  

hi@arunpatidar thanks for the reply        tried with your solution and its failing at In Servlet:String tagName = request.getParameter("tagName");Tag tagPath = Objects.requireNonNull(tagManager).resolve(tagName);Iterator<Tag> tagChildren = tagPath.listChildren();String hasChildren = "false";if (tag...

Tried with below approach getting errors not able to proceed furtherGet method from Servlet: protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response)throws ServletException, IOException { ResourceResolver resourceResolver = request.getResourceResolver();TagManager tag...