Looking at the last unexplained unused method in configmgr (i.e.
http://people.redhat.com/caolanm/callcatcher/DEV300_m27/configmgr.callcatcher.log "configmgr::configuration::SubNodeID::hashCode()
const") I see that the result is correct, and due to something slightly interesting.

In the OMultiTypeInterfaceContainerHelperVar template in cppuhelper the
"hashImpl" class argument is unused, which is the side-effect of the change of
#i72766# from a map to a vector in ver 1.6 to 1.7 of interfacecontainer.hxx

So, are we stuck with the API as it is, i.e. carrying around the unused class
and there's nothing we can really do about it ? Or can we change it to remove
that argument ? Its super-minor I guess, just a wrinkle where we need a class to
compile, but we don't use it.