public static Object getSessionAttribute(Session session,
    String name,
    Object defaultValue) 
{
        Object value = null;
        if (session != null) {
            value = session.getAttribute(name);
        }
        if (value == null) {
            value = defaultValue;
        }
        return value;
}

Return the given session attribute value or a user-provided default if none was specified.

 public static List getSessionAttributeNames(Session session) 
{
        ArrayList v = new ArrayList();
        if (session == null) {
            return v;
        }
        Enumeration e = session.getAttributeNames();
        while (e.hasMoreElements()) {
            v.add(e.nextElement());
        }
        return v;
}

Get the session attribute names.