I have tried to make IntelliJ work with SDK-14, but I am obviously having problems getting records to work. Since the release date is in March, I would think that the good people at Jetbrains are close to having a version that works with SDK-14. I need to run SDK 14 with --enable-preview. I have googled for a couple of days without any luck.
I had some luck with Sublime, but I miss code-completion. If there are other options, please feel free to mention them.