Today javax.management.NotificationFilterSupport only supports prefix matching.
We could define an extended syntax for the prefix string in order to support more
complex filtering.
The new version could have additional qualifiers to narrow down the matching criteria.
Compatibility with earlier versions could be ensured as follow:

* The additional qualifiers would be stored in an additional serialized field (which
  would be ignored by older implementation)
* The set of notification returned when the qualifiers are absent would be a superset
  of the notifications returned when the qualifiers are present.