I'm afraid the clustering requirements in the SecurityDomainAdd don't qualify as
those capabilities are dynamic even if in fact we use them
with a fixed value so we can't find a registration to it.
Some of the DefaultableUnaryServiceNameFactoryProvider might qualify since those default
capabilities could be required if no value is defined.
So apart from JTS and our Messaging use case i don't really see any other place that
would qualify :(