maven-jar-plugin does not include .gitignore file

Question

I try to package an application into a jar file with maven. Somehow all files except .gitignore files are added to the jar.

Why is this file skipped and how can I disable this?

Even if I try to include it like below the include is ignored and the jar file remains empty.

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-jar-plugin</artifactId>
  <configuration>
    <includes>
      <include>**/.gitignore</include>
    </includes>
  </configuration>
</plugin>

• maven-jar-plugin version: 3.1.0
• maven version: 3.5.2

Answer 1

I tried this with a src/main/resources/.gitignore and it worked with the default maven-jar-plugin:2.4, i.e. .gitignore was packaged into the JAR.

Then I used the maven-jar-plugin:3.1.0 you mention and it did not work, as you describe.

It turned out that it doesn't work from v2.5 onwards.