Get commit time of Solr on closing of a core

[Shashank Pedamallu]

Hi,

I observed that in Solr, when a core closes, it does a commit on the core, but 
does not make post commit callBacks. In this scenario, is there a reliable way 
to determine the lastCommitTime of a core in the closeHook of a core handler?

Thanks,
Shashank