error while loading .class file in nightly scalac

[timothyklim]

Compiler version

Problem started from 3.5.0-RC1-bin-20240501-e6bc130-NIGHTLY version and still present in latest nightly build. As a workaround I'm using 3.5.0-RC1-bin-20240429-e2c456f-NIGHTLY version.

Minimized code

[Error] error while loading ArrayBlockingQueueWithShutdown$Itr,
[Error]   class file org/jitsi/utils/concurrent/ArrayBlockingQueueWithShutdown$Itr.class is broken (version 52.0),
[Error]   please check the JDK compatibility of your Scala version (3.5.0-RC1-bin-20240501-e6bc130-NIGHTLY),
[Error]   reading aborted with class java.util.NoSuchElementException:
[Error]   key not found: E
[Error] error while loading PacketQueue$HandlerAdapter,
[Error]   class file org/jitsi/utils/queue/PacketQueue$HandlerAdapter.class is broken (version 52.0),
[Error]   please check the JDK compatibility of your Scala version (3.5.0-RC1-bin-20240501-e6bc130-NIGHTLY),
[Error]   reading aborted with class java.util.NoSuchElementException:
[Error]   key not found: T
[Error] error while loading ResettableLazy$lazyHolder$1,
[Error]   class file org/jitsi/utils/ResettableLazy$lazyHolder$1.class is broken (version 61.0),
[Error]   please check the JDK compatibility of your Scala version (3.5.0-RC1-bin-20240501-e6bc130-NIGHTLY),
[Error]   reading aborted with class java.util.NoSuchElementException:
[Error]   key not found: T
[Error] error while loading DelegatesKt$observableWhenChanged$$inlined$observableWhenChanged$1,
[Error]   class file org/jitsi/utils/DelegatesKt$observableWhenChanged$$inlined$observableWhenChanged$1.class is broken (version 61.0),
[Error]   please check the JDK compatibility of your Scala version (3.5.0-RC1-bin-20240501-e6bc130-NIGHTLY),
[Error]   reading aborted with class java.util.NoSuchElementException:
[Error]   key not found: T
[Error] error while loading DelegatesKt$observableWhenChanged$$inlined$observable$1,
[Error]   class file org/jitsi/utils/DelegatesKt$observableWhenChanged$$inlined$observable$1.class is broken (version 61.0),
[Error]   please check the JDK compatibility of your Scala version (3.5.0-RC1-bin-20240501-e6bc130-NIGHTLY),
[Error]   reading aborted with class java.util.NoSuchElementException:
[Error]   key not found: T
[Error] error while loading ResettableLazy$reset$1,
[Error]   class file org/jitsi/utils/ResettableLazy$reset$1.class is broken (version 61.0),
[Error]   please check the JDK compatibility of your Scala version (3.5.0-RC1-bin-20240501-e6bc130-NIGHTLY),
[Error]   reading aborted with class java.util.NoSuchElementException:
[Error]   key not found: T

[Gedochao]

@timothyklim can you provide a minimization? Just the error output isn't enough to go on here.
I'm guessing this is somehow reproducible with jitsi-utils?

[timothyklim]

3.5.0-RC1-bin-20240429-e2c456f-NIGHTLY

Yes, please: https://github.com/timothyklim/scala3-issue-20361

[Gedochao]

We'll still need a minimization without dependencies (without depending on jitsi-utils).

Still, @timothyklim the reproduction you sent seems to include a custom jitsi-utils JAR, rather than the most recent version from maven (seems to be https://mvnrepository.com/artifact/org.jitsi/jitsi-utils/1.0-130-g1473517).
I can't seem to reproduce this with the version from maven.

The following seems to work correctly:

//> using scala 3.5.0-RC1-bin-20240501-e6bc130-NIGHTLY
//> using dep org.jitsi:jitsi-utils:1.0-130-g1473517
import org.jitsi.utils.*

@main def run(): Unit = println("test")

Any context for what you're using? It's hard to investigate with what's there.

[Gedochao]

Bonus question: what JVM is this supposed to be run on?

[timothyklim]

I'm using my custom JDK 22 but tested with JDK 19 (19.0.2) from nixpkgs: nix run nixpkgs/release-23.11#sbt

[Gedochao]

What about jitsi-utils? what is the version that's being used in the repro repository?

[timothyklim]

What about jitsi-utils? what is the version that's being used in the repro repository?

It's built by bazel and rules_kotlin where kotlin is targeted for JDK 17.