Anyone facing: ```e: [ksp] java.lang.NullPointerEx...

# ksp

[Guilherme Delgado]

Anyone facing:

e: [ksp] java.lang.NullPointerException: null cannot be cast to non-null type org.jetbrains.kotlin.load.java.structure.impl.JavaClassImpl

* What went wrong:
Execution failed for task 'shared:kspKotlinIosSimulatorArm64'.
> A failure occurred while executing com.google.devtools.ksp.gradle.KspAAWorkerAction
   > null cannot be cast to non-null type org.jetbrains.kotlin.load.java.structure.impl.JavaClassImpl

With ksp.useKSP2=true?

https://github.com/google/ksp/issues/1941

[Jiaxiang]

do you have a rough idea on what code snippet might be triggering this issue? Generally I won’t expect anything jvm specific to work with KMP, in your stacktrace it looks like to be the case, as a workaround I can make KSP not to crash but won’t return information either.

[Guilherme Delgado]

I have no idea, it just fails when I turn on and works when off. The project is this: https://github.com/GuilhE/WhosNext

[Guilherme Delgado]

also this https://github.com/GuilhE/KMP-ComposeUIViewController/tree/main/sample (has no external libs dependencies)

[eygraber]

I believe that's the issue where annotation default values are null (don't have the link at the moment).

[Guilherme Delgado]

this https://github.com/google/ksp/issues/1823 ?

[eygraber]

Yes, as well as others. There's also a YouTrack issue tracking the upstream Kotlin issue

[Guilherme Delgado]

I’ve noticed this issue was added to milestone 2.1 https://github.com/google/ksp/milestone/26

[Justin Xu]

* What went wrong:
Execution failed for task ':shared:kspCommonMainKotlinMetadata'.
> A failure occurred while executing com.google.devtools.ksp.gradle.KspAAWorkerAction
   > null cannot be cast to non-null type org.jetbrains.kotlin.load.java.structure.impl.JavaClassImpl

I have the same NPE but for commonMain