There are a lot of great languages/frameworks, and it depends on the needs you have and your team.
(I'm so fatigued by this view I hear so regularly expressed in web dev that "X is the solution to everything" - no, it's very rarely the case)
But if you're saying that everyone who is in Javascript, Ruby, Python, Go, PHP (and others) should all refactor into Java because it's the one and only ideal web backend in 2016 (or design new apps exclusively in Java) - I could pick a 1000 holes in that argument. The original comment I reacted to was:
> If you're not picking the JVM in 2016 to build your core services and web applications then you're making a mistake
My apologies if this comes across negatively (which I don't intend, as this is a respectful debate among people who care deeply about their craft) - but I'm just not convinced that you're really a full supporter of the original commenter. Your blog seems to show a fair degree of pragmatism (you consider other languages/frameworks, might use them, are ok if your friends are not using Java). I'm totally fine with "I think the majority of people should use Java" (I don't fully agree with that, but in a world where many people knew that ecosystem, I think it's a great choice) - but the commenter went much further. If s/he is looking to start a debate, then I'm fine; if that person would join any company and religiously uphold that viewpoint, I don't think they'd be the right person for many companies.
P.S. If I'm wrong, and if Java is the ecosystem that for the next few years the rules them all, I really want to make a Lord of the Rings-inspired meme about it