Mastering SIMD with Java Vector API
lemire.me
3 threads
If you need SIMD for new project work, I would consider Mojo[0] as it's v1.1 already. If you're unfamiliar its creator also made LLVM, Clang, and Swift.
Until the Vector API is out of incubation this is a bit premature. I would love the vector api to be fully realized, it would make my life so much easier. But its on the twelth incubation and there's no end in sight.
I really don't think the prediction that the vector api will become a mainstream feature soon is true. It's currently locked up by project Valhalla which is a bit of a meme.