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kotlinlang

Hi folks! I've an app running fine in IntelliJ but generating a weird ClassCastException when I package the app (`./gradlew package` ). I'm using a MAC M1.
&gt; Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: class foo.bar.MyClass cannot be cast to class ....
```interface Animal { fun foo() }
interface Mammal : Animal
class Tiger : Mammal { ... }```
It crashes when I call `foo()` on my Tiger instance.
If I check with `is` , for some reasons `Tiger is Animal` on IDE and `Tiger is NOT Animal` once the app is packaged. (And Tiger is Mammal in both usage :shrug: )
Any idea what's going on?

I'm using Jdk 17.0.1 from Zulu in both cases.

Likely you have runtime classpath conflict so your class can be loaded from more than one JAR. Usually best way is to report at <https://github.com/JetBrains/compose-jb/issues> with full reproducer

Thanks! Is there a gradle command to check the classpath declarations or something that I should know/test before?