To create reproducible builds with Maven projects, it’s enough to specify the project.build.outputTimestamp property like this:

<properties>
    <project.build.outputTimestamp>2020</project.build.outputTimestamp>
</properties>

Links

• https://maven.apache.org/pom.html#Properties
• https://maven.apache.org/guides/mini/guide-reproducible-builds.html
• https://github.com/rodiontsev/maven-build-info-plugin
• https://github.com/phax/ph-buildinfo-maven-plugin
• https://github.com/Zlika/reproducible-build-maven-plugin