Github user afs commented on the pull request:
https://github.com/apache/jena/pull/82#issuecomment-116609093
Here, the client browser is an admin interface.The read-information
operations are not a performance pain-point.
Helpers presume how they are being used in Fuseki is defined and it's not.
Each use may be quite different. It's not just how to use E-Tags but deciding
what they represent so look at in context.
e.g. JENA-626 (query caching) is a case where they would be useful. And how
would even Jena's own client library deal with them.
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