Github user afs commented on the issue:
https://github.com/apache/jena/pull/465
This PR is not yet completely finished. It is put out now to give it early
visibility.
I have some development checking to do, some code tidying and documentation
but the tests are reasonably comprehensive and do pass.
There is still work to be done to expose this conveniently on the command
line. At the moment, it is a code library and needs java code to use.---
