> It also does not have the 100B$ garbage collectors of the JVM, which are a deal breaker, at least for me.

Can you expand a bit on that? I was under the impression that even with all that investment, Java code tends to be slower and more memory hungry than equivalent Go code.

They’re adding value types of course, but I haven’t looked at how exactly they’ll work.

Java also tries to optimize out method dispatch, so we can use it freely where Go might tend to avoid it.

There's some other tricks like tagged pointers, purgeable data it doesn't reliably have either.

I’ve read that games and simulators schedule realtime asset loading pretty carefully; what other problems are solved using large constant data?

Or is it ok to use cgo to work around Go's shortcomings, but not JNI for Java's?

I don't remember how good the Java interfaces look though, eg if you worked around no constant data by defining your arrays in C and passing them back, would they be bounds checked arrays?

If one is dumb enough to use C style arrays instead of C++ bounded checked ones, yes that is a problem, again just like C arrays defined in CGO.

I'm talking about defining a 'const int[]' in C and having it appear as an 'int[]' in Java. I think that's even less likely to happen if you define a const std::vector.

Actually I've never even seen someone define constant data in C++ using a vector, but this fits my experience of C++ developers telling me I'm stupid when I do the only thing I've ever seen anyone actually write.

Go doesn’t need a good GC as much because it can rely on value types sometimes. But for general enough workloads a superior GC can triumph.

Also, Java is memory hungry only in that doing GC when it is not absolutely needed is useless work. The JVM is actually quite power efficient due to trading off memory for better throughput — so especially in server environments with huge (up to multi-TB) memory which the JVM is free to use, it can be ridiculously fast. So no, java is not slower than equivalent Go program though correctly comparing languages is nigh impossible.