jre task fails because it doesn't set the appropriate dependencies on jar tasks

[hakanai]

Given this project: https://github.com/hakanai/beryx-runtime-issue

If I try to run:

./gradlew :app:jre

The build fails with:

> Task :app:jre FAILED
4 actionable tasks: 4 executed

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:jre'.
> File or directory not found: ...\beryx-runtime-issue\lib\build\libs\lib.jar

It seems like this task needs to add dependencies to all the jar tasks which it intends to look inside.

This is something we're seeing on our real gigantic project as well, but it seems all you need to reproduce it is a small project with at least two subprojects.