How do I address unchecked cast warnings?

Question

Eclipse is giving me a warning of the following form:

Type safety: Unchecked cast from Object to HashMap

This is from a call to

Answer 1

This makes the warnings go away...

 static Map getItems(HttpSession session) {
        HashMap theHash1 = (HashMap)session.getAttribute("attributeKey");
        HashMap theHash = (HashMap)theHash1;
    return theHash;
}