java compiler error (class not found) when using scala dependency

[codejanovic]

Describe the bug
When using Akka within a project that has manifold configured, the compiler throws the following error:

An exception has occurred in the compiler (17.0.7). Please file a bug against the Java compiler via the Java bug reporting page (https://bugreport.java.com/) after checking the Bug Database (https://bugs.java.com/) for duplicates. Include your program, the following diagnostic, and the parameters passed to the Java compiler in your report. Thank you.
com.sun.tools.javac.code.Symbol$CompletionFailure: class file for akka.actor.CoordinatedShutdown$tasks$$TaskDefinition$ not found

To Reproduce
I forked the manifold-sample-project and added the akka dependency + a sample class using akka to reproduce the error: https://github.com/codejanovic/manifold-sample-project

Expected behavior
I expected the project to compile correctly.

Screenshots

• Build success without akka dependency: here
• Build failed with akka dependency: here

Desktop (please complete the following information):

• OS Type & Version: MacOS / Github Action llinux
• Java/JDK version: 17
• IDE version (IntelliJ IDEA or Android Studio): 2023.1.3
• Manifold version: 2023.1.10
• Manifold IntelliJ plugin version: 2023.1.10

Additional context

Stack trace
https://github.com/codejanovic/manifold-sample-project/actions/runs/5435818146/jobs/9885221065

[rsmckinney]

That is a confusing naming convention with akka/scala -- Name vs. Name$ etc. I'm not sure what is going on exactly, but it appears the akka.actor.CoordinatedShutdown$tasks$$TaskDefinition$ class is indeed missing from the jar or is otherwise not available, however it manifests. Perhaps there is another akka related jar dependency that defines it?

[codejanovic]

You are right, the type akka.actor.CoordinatedShutdown$tasks$$TaskDefinition$ exists within the scala code of akka, but i am also unable to find it within the jar. I will try to find out what is happening here and report back! Thanks for the fast response

[codejanovic]

It looks like the classes are not referenced in IntelliJ, but definetely present in the jar:

[rsmckinney]

The missing type has a pair of $$:

akka.actor.CoordinatedShutdown$tasks$$TaskDefinition$

[codejanovic]

Is there anything i can help investigate with? Is there somewhere a contribution guide or sth like that? Didnt touch compiler plugins yet.

Although the compiler complains about ...$tasks$$TaskDefinition$, it works lilke a charme when manifold is not configured.

[rsmckinney]

it works lilke a charme when manifold is not configured

Good point. It must be something on my end. I’ll have another look at this.

[codejanovic]

Just checked that i'm not lying:

manifold disabled -> compiles: commit
manifold enabled -> wont compile: commit

[LinSanmu]

Has this bug been fixed?

[rsmckinney]

Hi @LinSanmu. Sorry, no it’s an issue that unfortunately fell by the wayside. I’ll put it back on my stack. Are you experiencing the same problem?