[BUG] Runtime tests for Kotlin, Scala, and Rust fail locally and in Docker environment

[Varadraj75]

Describe the bug.

Runtime tests for Kotlin, Scala, and Rust fail when running locally and inside Docker.
The failures are caused by a combination of:

• Incompatible Java versions (Gradle failing with class file version errors)
• Incorrect or missing code generation before build
• Incorrect enum rendering in Scala runtime
• Hardcoded cargo path in Rust runtime test spec that does not work locally

As a result, npm run test:runtime:kotlin, test:runtime:scala, and test:runtime:rust fail in a clean environment.

Expected behavior

All runtime tests for Kotlin, Scala, and Rust should pass in:

• Local development environment
• Docker environment used by CI

Without requiring manual environment fixes.

Screenshots

1. Docker build failure on linux/amd64 showing mono-project repository error.

2. Docker build failure on linux/arm64 with the same missing Release file.

3. Runtime Rust tests failing due to compilation errors.

4. Runtime Kotlin tests failing due to unsupported Java version.

5. Runtime Scala tests failing during compileScala task.

How to Reproduce

1. Clone the repository
2. Run:
   npm install
   npm run test:runtime:kotlin
   npm run test:runtime:scala
   npm run test:runtime:rust

🖥️ Device Information [optional]

• Operating System (OS): macOS
• Browser: N/A
• Browser Version: N/A

👀 Have you checked for similar open issues?

• I checked and didn't find similar issue

🏢 Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines

Are you willing to work on this issue ?

Yes I am willing to submit a PR!

[Varadraj75]

Hi @jonaslagoni,
I have reproduced this issue and prepared fixes for the Kotlin, Scala, and Rust runtime tests. If you’re okay with it, I’d be happy to open a PR.

[jonaslagoni]

No need to ask @Varadraj75 ✌️

[Varadraj75]

@jonaslagoni , i have opened a PR to fix this issue.
would really appreciate your review when you have time.

[Varadraj75]

Hi @jonaslagoni,
Thanks again for the review and approval.
Just checking if there’s anything else required from my side before this can be merged.