Thank you for the fix!
Can confirm it fixes mardown rendering issues in IDEA.
Would be happy to see it merged @edwtjo

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/prs-ready-for-review/3032/1402

After upgrading to the latest version opening project containing kotlin files make idea to be stuck on "looking up kotlin script definition..." background task @GenericNerdyUsername can you take a look please? (as alternative, I'd just rollback the sdk)

Does this still happen on the main branch, without jcef? Can you diff the logs with/without jcef and show me the result?

@ifropc

Does this close #150579 as well?

If I run this (using the latest NixOS unstable), I get this error when running Intellij IDEA:

Do I need to change something else?

Does this close #150579 as well?

I can view markdown files in clion with this

If I run this (using the latest NixOS unstable), I get this error when running Intellij IDEA:

Do I need to change something else?

I fixed this in my overlay, forgot to push changes here

Should be working now

@GenericNerdyUsername sorry for the late response, for some reason I didn't received a notification on my mail.
I had the same issue with 4c5a2e44561f4991d568d7bb7dc68d56a73a5d6c version. The one from unstable works just fine. 6f0a18633d59a73c90d29446e1f85e4f1a233e86 also works just fine.
Very strange error. Tried to clean caches, didn't really help. I got the log from the unsuccessful run if you are curious: https://paste.apache.org/u6jua
ClassCastException is what causes this behavior is my guess.
The last IllegalStateException can be ignored, it happens when I close IDE.

FYI: could be related to https://youtrack.jetbrains.com/issue/IDEA-304608/Background-tasks-get-stuck-with-custom-Boot-Java-Runtime : build is 222 and jbr is (my guess) 223

IntelliJ IDEA 2022.2.3 (Community Edition)
Build #IC-222.4345.14, built on October 4, 2022
Runtime version: 17.0.5+8-nixos amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Linux 6.0.11
GC: G1 Young Generation, G1 Old Generation
Memory: 2048M
Cores: 20
Non-Bundled Plugins:
    wu.seal.tool.jsontokotlin (3.7.4)
    org.jetbrains.kotlin (222-1.7.21-release-272-IJ4167.29)
    com.facebook.ktfmt_idea_plugin (1.1.0.42)
    IdeaVIM (1.11.1)
    com.godwin.kdocer (1.6)

Kotlin: 222-1.7.21-release-272-IJ4167.29
Current Desktop: sway

IntelliJ IDEA 2022.2.3 (Community Edition)
Build #IC-222.4345.14, built on October 4, 2022
Runtime version: 17.0.5+8-nixos amd64
VM: OpenJDK 64-Bit Server VM by N/A
Linux 6.0.11
GC: G1 Young Generation, G1 Old Generation
Memory: 2048M
Cores: 20
Non-Bundled Plugins:
    wu.seal.tool.jsontokotlin (3.7.4)
    org.jetbrains.kotlin (222-1.7.21-release-272-IJ4167.29)
    com.facebook.ktfmt_idea_plugin (1.1.0.42)
    IdeaVIM (1.11.1)
    com.godwin.kdocer (1.6)

Kotlin: 222-1.7.21-release-272-IJ4167.29
Current Desktop: sway

@ifropc what happens if you use the latest IntelliJ?

@GenericNerdyUsername Do you mean from unstable? It works just fine

I mean using this jdk with intellij 2022.3.1

It will probably work, but version in master is 222, so if PR is merged as is, it will break things for somebody else too (potentially)
I would say it's a good idea to either rollback SDK or upgrade IDEA in this PR to 223

@ifropc do things work now?

@GenericNerdyUsername yes, everything is working now, thank you very much for your patience!

Can confirm PyCharm Professional builds and runs fine with this, including the web stuff. I'm inclined to merge this unless someone objects.

I've just fixed Gitlab Merge Request plugin with it - thanks!:)

Can you please fix the merge conflict?

Done

Fantastic work, all! Is anyone working on porting this to 22.11?

Cherry picking this commit on top of the 22.11 branch lets it compile if you apply this patch

diff --git a/pkgs/development/compilers/jetbrains-jdk/default.nix b/pkgs/development/compilers/jetbrains-jdk/default.nix
index 3d1e8a30434..ebeb218c1b5 100644
--- a/pkgs/development/compilers/jetbrains-jdk/default.nix
+++ b/pkgs/development/compilers/jetbrains-jdk/default.nix
@@ -29,8 +29,8 @@
 
 openjdk17.overrideAttrs (oldAttrs: rec {
   pname = "jetbrains-jdk-jcef";
-  javaVersion = "17.0.5";
-  build = "653.14";
+  javaVersion = "17.0.3";
+  build = "653";
   # To get the new tag:
   # git clone https://github.com/jetbrains/jetbrainsruntime
   # cd jetbrainsruntime
@@ -88,7 +88,7 @@ openjdk17.overrideAttrs (oldAttrs: rec {
     runHook preInstall
 
     rm -rf build/linux-x86_64-server-${buildType}/images/jdk
-    mv build/linux-x86_64-server-${buildType}/images/jbrsdk${jcefSuffix}-${javaVersion}-linux-x64${debugSuffix}-b${build} build/linux-x86_64-server-${buildType}/images/jdk
+    mv build/linux-x86_64-server-${buildType}/images/jbrsdk${jcefSuffix}-${javaVersion}-x64${debugSuffix}-b${build} build/linux-x86_64-server-${buildType}/images/jdk
   '' + oldAttrs.installPhase + "runHook postInstall";
 
   postInstall = ''

All that should be needed is testing and making a pr, but I'm too tired to do that rn. Would you be ok with doing that @l0b0?