Finally, I've got #Sonarlint running in @neovim through #languageserverprotocol with #stdio channel.
https://github.com/SonarSource/sonarlint-language-server/pull/187
Implement Stdio Channel by schrieveslaach · Pull Request #187 · SonarSource/sonarlint-language-server
This PR adds support for serving the language over stdio channel which is the default communication channel in tools such as Neovim. That use case has been also reported in the forum (see here). Th...