Quarkus fails when using jgitver

[lmtjalves]

Describe the bug

Hi,

It seems that Quarkus doesn't work properly when the maven project is using the jgitver-maven-plugin - a maven plugin to automatically define the maven project version based on git branches as tags.

Thanks.

Expected behavior

The ./mvnw quarkus:dev should start Quarkus in development mode, instead of failing.

Actual behavior

Running ./mvnw quarkus:dev fails with the following error:

Listening for transport dt_socket at address: 5005
Exception in thread "main" java.lang.NullPointerException: Cannot invoke "io.quarkus.deployment.dev.DevModeContext$ModuleInfo.getMain()" because the return value of "io.quarkus.deployment.dev.DevModeContext.getApplicationRoot()" is null
	at io.quarkus.deployment.dev.DevModeMain.start(DevModeMain.java:90)
	at io.quarkus.deploy
[debug.txt](https://github.com/quarkusio/quarkus/files/9704780/debug.txt)
ment.dev.DevModeMain.main(DevModeMain.java:62)

Output from running ./mvnw quarkus:dev -X: debug.txt

How to Reproduce?

1. Create a Quarkus project with quarkus create.
2. Add the jgitver maven extension, by adding a file .mvn/extensions.xml to the project with the following content:

<extensions xmlns="http://maven.apache.org/EXTENSIONS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/EXTENSIONS/1.0.0 http://maven.apache.org/xsd/core-extensions-1.0.0.xsd">
  <extension>
    <groupId>fr.brouillard.oss</groupId>
    <artifactId>jgitver-maven-plugin</artifactId>
    <version>1.9.0</version>
  </extension>
</extensions>

3. Optional: Initialize the git repo and do a commit, just so that jgitver computes the version as 0.0.0-SNAPSHOT instead of 0.0.0-NOT_A_GIT_REPOSITORY:

git init
git add .
git commit -m "test"

4. Run ./mvnw quarkus:dev.

Output of uname -a or ver

Linux laptop-2220 5.15.0-48-generic #54~20.04.1-Ubuntu SMP Thu Sep 1 16:17:26 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

Output of java -version

openjdk version "17.0.4" 2022-07-19 LTS
OpenJDK Runtime Environment Corretto-17.0.4.8.1 (build 17.0.4+8-LTS)
OpenJDK 64-Bit Server VM Corretto-17.0.4.8.1 (build 17.0.4+8-LTS, mixed mode, sharing)

GraalVM version (if different from Java)

N/A

Quarkus version or git rev

2.13.0.Final

Build tool (ie. output of mvnw --version or gradlew --version)

Apache Maven 3.8.6 (84538c9988a25aec085021c365c560670ad80f63)

Additional information

No response

[gsmet]

@lmtjalves any chance you could point to a reproducer already set up in a Git repo? That will save us some time and we will be sure we can reproduce.

[lmtjalves]

Here you have it: https://github.com/lmtjalves/quarkus-28375
Thanks @gsmet !

[gsmet]

/cc @aloubyansky probably something in your ballpark.