"Sadly they couldn't articulate any actual problems with Java..."
The first thing they said about Go applies to Java: "Go felt promising but too low level for us to express our query language productively."
You certainly can write that sort of code in Java, as evidenced by the fact that many people have and continue to. But you can get a very big win on that sort of code in a lot of other languages, especially if you're resource-constrained.
The first thing they said about Go applies to Java: "Go felt promising but too low level for us to express our query language productively."
You certainly can write that sort of code in Java, as evidenced by the fact that many people have and continue to. But you can get a very big win on that sort of code in a lot of other languages, especially if you're resource-constrained.