It also would not be the software to install on my grandmas pc because of the many important java updates which are needed. The automatic installation of a browser plugin i don't need and which makes it even more vulnerable.
I think if Android would not be using Java it would have died years ago.
On the other hand. Jitsi still great software. Open source and all.
I think you're seriously underestimating the amount of enterprise software running on Java for decades now. Not only it's not going away, but the language itself and its ecosystem are evolving. Slowly, but in the domain of programming languages that are actually being widely used slow progress is a good thing.
Java on the server is a safe language. I agree that any browser plugin affects security and usability negatively, and the Java browser plugin was a nightmare.
Recently I have migrated a large application from RedHat 6 to RedHat 7. A lot of code in Ada, C++, Java (all using corba), many scripts in shell, Perl, Awk, make. Most of the code changes needed were in C++.
Most of the new applications here are developed in java or C#.