[Bug]: ./gradlew checkSetup fails with Java 8 on Docker dev image

[charlespnh]

What happened?

I was setting up the dev environment using Docker and came across the NullPointerException error when running task :sdks:java:core:compileJava. From the Docker image I was using Java 8 and got this error. It is fine if I use Java 11 instead.

I setup a GitHub Action workflow to reproduce the error here: https://github.com/charlespnh/beam/actions/runs/13744591726?pr=1

Issue Priority

Priority: 2 (default / most bugs should be filed as P2)

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[yuwtennis]

I was following this issue and did some testing . Looks like compileJava task fails when the docker is running on particular os . For this I did testing on multiple ubuntu releases.

https://github.com/yuwtennis/beam/actions/runs/13880748050/job/38838923540

version	result
20.04	pass
22.04	pass
24.04	fail

[liferoad]

The dev docker is always built with ubuntu:20.04 https://github.com/apache/beam/blob/master/dev-support/docker/Dockerfile#L21. I do not understand why the base OS could cause the docker fails to run compileJava. Thanks for your discovery.