Yes Java is uqititous and it's not going away for 30 years at least. See Cobol. Java also has had significant improvements in the language so that there is less

Yes Java is uqititous and it's not going away for 30 years at least. See Cobol. Java also has had significant improvements in the language so that there is less incentive to use other JVM languages like kotlin and it's fully interoperable with heartland code bases as far as I know