I work at a company that employs +1.5k engineers that is currently stuck on guava 16 (released in 2014) and upgraded to java 8 about two years ago.

P.S.

> This is the reason many government agencies return data in PDF formats, or in XML.

Equating returning data in XML to returning data in PDF is cray. I'd take XML over human readable PDF 100 times to 1.