> To this day, Java applications are the slowest and most memory hungry long-running server applications by far

I am not a fan of Java, but the slow part is just plain wrong. On properly sized hardware Java is blisteringly fast. Did it exceed the speed of C as hyped? No, in most cases it falls solidly short, but I'm sure there are isolated cases where it does. Regardless, 2-3x slower than C using a JIT is a serious feat of engineering.

All GC languages require more memory, and Java is even worse given lack of value types, but again, memory/hardware is cheap compared to programmer time and if you have enough of it, it generally isn't a problem.

All this does mean you will need a bit more hardware than a C program, so perhaps that is the posters critique, and that is true, but compared to other high level languages, it does great in the speed dept, and is often only a bit higher in the memory dept.