RFR: JDK-8134373: explore potential uses of convenience factories within the JDK

[Jonathan Bluett-Duncan]

Hi all,

Thank you very much for all reviewing my changeset over the last few days
and for finding the bits I forgot to transfer from webrev01 to webrev02.
I've been quiet as I'm still busy with university and will be for the
foreseeable future.

Stuart, many thanks again for sponsoring the change and going through the
whole procedure for me. I look forward to the rest of your results.

Kind regards,
Jonathan