How to determine if a session object has already been created

[beyaNet Consultancy]

Hi,
How do I determine, in XSP:LOGIC, whether a session object has already been created? Basically I am trying to persist an object, in this case an Order object, in a session:

				//1.Determine if an order has been created
Order newOrder = (Order)session.getAttribute("ORDER");


if (newOrder == null){
newOrder = new Order();
}


//2.check that stock exists
Stock newStk = InsertOrder.checkStock("d1e22501fbd4255600fbd42559d30001");


//3.Add stock item
newOrder.addProduct(newStk,32);


//4.Update Session object
session.setAttribute("ORDER", newOrder);

The problem is that the if statement is not working, and as a result a new Order object is being created on each pass of the page. What am I doing wrong?

Peter