[Libreoffice] Base - sqlite - licence grief

I've downloaded the old sqlite driver, which is copyright Sun LGPL 2.1.

I was going to try and get that working, and teach myself C++ in the
process, but on trying to commit it to my local repo the first thing I
get is "you are adding tabs to these files" (no I'm not but never mind :-)

So I fix that, then I get "Your change introduces old licences". Where
do I go from here? I could unilaterally change all the files to GPL3+
(as permitted by the LGPL) but I don't yet have the skill to rewrite the
files. Or is there a contact at Oracle I can ask to upgrade the licence
to LGPL3?

Will LO accept a GPL3+ - only licenced new file?

NB - "Please check with the author(s) that they agree with upgrading the
license to LGPL3, and change the license accondingly."
c/accondingly/accordingly/ :-)

Cheers,
Wol