Rob - jena-jdbc directly controls log4j1. Is this necessary for some reason?
What are the requirements here?1/ log4j1 needs retiring due to the CVE (even if if it does not really affect us)
2/ It isn't simple to surpress messages like WARN info :: Attempt to close a DatasetGraphTransaction ....because the tests log but log4j1 is on the classpath and the log4j2 helper code can't surpress the messages.
(there again jena-text-es is very, very messy in tests)
Andy
