I will say, Java performance always impresses me. Trying a few benchmarks relating to economics, OpenJDK 1.8 somehow beats C++ and Fortran on my machine (!!!). And of course, there's plenty of nice, high performance JVM languages (Kotlin, Scala, Clojure), and you can tune the JVM a number of ways.
I can certainly imagine a future where Java is the top performing language for any application.
I can certainly imagine a future where Java is the top performing language for any application.