Is there any Java API for Flickr out there that is more modern than the existing ones?
Also, as far as I can see, all of them are missing updates and are also not (with the most current version) available via maven central.
I think you'll find that if you just get started making the calls yourself, you will end up with your own version of a framework that works just as well. This is what happened to me, although I did reference some of the code from flickrj to help me with some basic things, but after time, I ended up with my own portable library that worked excellently.