casting of 2D array

Hi,

I have try to forward from a servlet to a JSP.
Code in my servlet is below:

String[ ][ ] carrot;
:
:
RequestDispatcher rd = getServletContext().getRequestDispatcher("/summary.jsp");
request.setAttribute("Data", arr);
rd.forward(request, response);


Code in my summary.jsp is below:

<%
String[ ][ ] listSort = (String[ ][ ])request.getParameter("sortedData");
:
:
%>


But i keep getting the below error message:
Invalid cast from java.lang.String to java.lang.String[ ][ ].

May I know which is the correct way to retrieve an 2D array??
Thanks a lot..

Try using request.getAttribute() instead of request.getParameter().