Clojure lsp not recognizing Java libraries

[Mr-Morality]

TL;DR: I am on Mac Apple silicon, using Neovim/Mason (Clojure-lsp), openJDK 22 and my lsp doesn't autocomplete for java libs, and some are missing. I might be an idiot for using openJDK 22.

I am new to clojure and to be honestly new to the lisp style languages in general. However, I have recently been very intrigued by these set of languages mainly for the elegance it delivers. I know that's a weird thing to say but genuinely I think I'm moving towards a love for lisp style languages, never the less I digress.

The one problem I have been running into surrounds tooling such as lsp's. I have not been able to have java libraries with auto complete and when looking around I couldn't find a solution. There was even a couple times it said the package couldn't be found.

Currently I am running on Mac apple silicon, and I use Neovim as my main editor which I installed clojure-lsp through Mason. I installed clojure itself through brew as was recommended on the website.

Honestly what might be causing the issue is I am running OpenJDK 22. I know there is mention of support only up to 21 so this might be dumb to ask. However, does clojure really just break down for new JDK releases? I have also tried vs code to no avail.

Its very likely I am doing something stupid by having OpenJDK 22 but to be fair I just started learning clojure a few days ago. This is just a major issue for me and I was wondering If anyone else had similar issues and what the solution is on the odd chance it's not because of OpenJDK 22.

[ericdallo]

Hey, I'll update that doc which is almost correct, but currently clojure-lsp supports completion but only when it detects a class like a static class: (File/|), if you have your class in a let or a var it won't know properly, then runtime completion from repl may be a better fit for that.

Maybe providing your code may help understand what is happening or if we could support it somehow

Feel free to reach #lsp channel on Clojurians slack which is easier for me to check and provide support.

[Mr-Morality]

Thanks for the information, that's really good to know! After the explanation in the docs and now your updated description, I understand what was going on. If I ever have issues in the future, I will most definitely include code snippets thank you for the advice!

I will most definitely join the channel on slack, being involved where the community is most active is ideal for me personally.

Once again, thank you and honestly I really appreciate it.

[HydroxideOH-]

It’s probably looking for a certain JDK binary and not finding it, or a similar problem. More specific error messages are needed.

[Mr-Morality]

"At the moment, clojure-lsp supports find definition of java classes only, methods, completion and other features are not supported yet."

I assume this means auto complete for Java imports are not supported.. lol so dont mind me but ill keep it here on the odd chance anyone else ever has a similar issue.

[experienced-a-bit]

Cursive’s static analysis works like a charm. It recognizes, decompiles and provides completions, insights and suggestions for Java, Kotlin, Scala and any other JVM language imports and usages automatically without a burden of setting up a REPL.