When I call a JavaServerPage with the following simple code I got a 
NullPointerException.
I just want to store the current date into a variable inside the session object.

...
<%@ page import="java.util.*" %>
  ....
  <% session = request.getSession(true); 
    
     String firstVisit = (String) session.getAttribute("firstVisit");
     if (firstVisit.equals("")) {
        session.setAttribute("firstVisit",(new Date()).toString()); 
        firstVisit = "new session"; }

  %>
  First Visit: <%= firstVisit %>
...
I don't believe that the error is because of the "new Date()" code. It seems to be a 
more general problem.
Do I have to add some more page import statements ?

Thomas

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