hod <em>can not</em> be used to test for roles that are mapped to specific named Jakarta Servlets or
 named Jakarta Enterprise Beans. For a Servlet an example of this would be the <code>role-name</code> nested in a
 <code>security-role-ref</code> element nested in a <code>servlet</code> element in <code>web.xml</code>.

 <p>
 Should code in either such Jakarta Servlet or Jakarta Enterprise Bean wish to take such mapped (aka referenced, linked) 
 roles into account, the facilities for that specific container