And using AWS that has most services written in Java.
Java improved a lot in the last few years and it’s not going anywhere.
People complain about Java, but then it could be much, much worse. What we have is a rich open-source ecosystem, great backwards compatibility and carefully considered new features.
Even dead languages like COBOL aren't dead.
These techs are the tech that'll be here in 40+ years - or atleast until Skynet rewrites them in binary and we're nuclear ash. I think COBOL will be driving the satellites that monitor the heat death of the universe.