Java's more likely to survive in the same way COBOL survives today, just based on who their target audiences were and what kind of programs were written with it. There's lots of COBOL code out there, but nobody wants to maintain it.

2019's only 10 years away though, and 10 years is relatively short in programming language terms. 10 years ago, the languages commonly used in industry were C++, Java, VB, Perl, and PHP. Today, substitute various ECMAScript variants for VB and Python/Ruby for PHP & Perl, but it's basically the same.