Maven build error

[erizzo-cfa]

I get the following when building via ./mvnw clean install from the root of the repo:

[INFO] AssertJ Core Integration Tests ..................... FAILURE [ 0.934 s]
...
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.14.1:testCompile (default-testCompile) on project assertj-core-tests: Execution default-testCompile of goal org.apache.maven.plugins:maven-compiler-plugin:3.14.1:testCompile failed: Can't compile test sources when main sources are missing a module descriptor

Here's my mvn version info:

./mvnw --version
Apache Maven 3.9.11 (3e54c93a704957b63ee3494413a2b544fd3d825b)
Maven home: /Users/eric/.m2/wrapper/dists/apache-maven-3.9.11/a2d47e15
Java version: 25, vendor: Eclipse Adoptium, runtime: /Users/eric/.sdkman/candidates/java/25-tem
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "15.5", arch: "aarch64", family: "mac"

I've never seen that kind of compilation error before; tried to research it but it seemed like a rabbit hole so I thought I'd bring it up here.

[erizzo-cfa]

After some more research, I added a module-info.java file with "empty" contents in /assertj-core-tests/src/main/java/module-info.java

open module org.assertj.tests.core {
}

Doing that allowed the maven build to complete successfully.
How can I be the first person to run into this?

[scordio]

With:

./mvnw --version
Apache Maven 3.9.11 (3e54c93a704957b63ee3494413a2b544fd3d825b)
Maven home: /Users/stefano/.m2/wrapper/dists/apache-maven-3.9.11/a2d47e15
Java version: 25, vendor: Eclipse Adoptium, runtime: /Users/stefano/.sdkman/candidates/java/25-tem
Default locale: en_CH, platform encoding: UTF-8
OS name: "mac os x", version: "15.6", arch: "aarch64", family: "mac"

./mvnw clean install works properly on my machine 🤔

[erizzo-cfa]

🤔 indeed...
I re-cloned into a different local directory and it builds fine. I had stashed all changes before posting this, so no idea what was in my original repo clone that caused it. Sorry for the noise.

[scordio]

No worries! And there is still one more issue to tackle... #4002 (comment)