how to resolve java.lang.ClassCastException: net.sf.json.JSONObject cannot be cast to net.sf.json.JSONObject [duplicate]

I am using json-lib-0.9.jar. in view.class i am getting inputstream from the request, setting into request and dorwarding request to Render.jsp, i am not able to understand how to fix this. could someone help me in in order to fix this issue. thanks in advance

View.class

  import javax.servlet.ServletException;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import net.sf.json.JSONObject;
     private void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException { {                 
            if (request.getInputStream() != null) {
               byte[]   bytes = IOUtils.toByteArray(request.getInputStream());    
            String resString=new String(bytes, StandardCharsets.UTF_8);
            JSONObject Json  = JSONObject.fromString(resString);   
            request.setAttribute("META", Json.get("META"))              
     }
      request.getRequestDispatcher("/jsp/Render.jsp").forward(request, response);
 }

Render.jsp

<%@page import="net.sf.json.JSONObject" %>
<%
JSONObject docMeta =  (JSONObject)request.getAttribute("META");%>

in this line its throwing

java.lang.ClassCastException
java.lang.ClassCastException: net.sf.json.JSONObject cannot be cast to net.sf.json.JSONObject
at org.apache.jsp.jsp.Render_jsp._jspService(PreviewLander_jsp.java:134)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)