FWIW, I've seen job ads for Java developers in HFT.

It did look weird, of course, but they're also using Go (which iiuc has worse GC latency) or other garbage-collected languages (OCaml being a famous example).

The "heinous-dual-stack-blobs" joke refers to loading native binary objects in the JVM, but its probably some newer naive kludge like RTSJ.

I guess it is like using a Fiat Coupe as a gravel dump-truck. lol =3