If I have a common library which targets the

AutoCloseable

experimental stdlib API, is there a way to make it also work for JVM? I get a type mismatch error when trying to use a Java

AutoCloseable

with my library https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-auto-closeable/

AutoCloseable

is an

expect class

in Kotlin common and its JVM

actual

is the Java implementation. If you're getting an error, it's likely a false positive in the IDE.

Yup, you're right. It builds and the test executes fine, it's an IDE error

I use

AutoCloseable

in my KMP library and in some cases it works as expected, while in other cases, I get this error in the IDE for the JVM actual class:

Actual class 'SomeClass' has no corresponding expected declaration

The following declaration is incompatible because some supertypes are missing in the actual declaration:

@OptIn public final expect class SomeClass : AutoCloseable defined in somepackage in file SomeClass.kt

It's odd because it's pretty much the same scenario as others that don't display an error in the IDE, an

expect class

that implements

AutoCloseable

.

I'll open an issue on youtrack about it, hopefully my particular issue is simple enough to be fixed, I haven't run into that one yet though

Great. I'll add my error to the issue. I haven't created one for this yet.

Alright cool - I'll push up my reproduction example to a git repo and create the issue, I'll drop the link in here once I've done that