 static <code>registerHandler</code> method.
 Handler registration is scoped to the class, such that the same handler
 registrations are active in all thread contexts. Containers may
 use the static method <code>setHandlerData</code> to
 establish a thread-scoped parameter that will be passed to handlers
 when they are activated by <code>Policy</code> providers. The 
 static <code>getContext</code> method is used to activate a 
 handler and obtain the corresponding context object.
 <P>
 The static accessor 