Sometimes it's convenient to add files to your DMG and ZIP distribution alongside the Application Bundle.
Example shows how to add a README.txt files to your distribution by using the "additionalResources" configuration option.
<project>
...
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>osxappbundle-maven-plugin</artifactId>
<version>1.0-alpha-1</version>
<configuration>
<mainClass>com.example.Main</mainClass>
<additionalResources>
<fileSet>
<directory>${basedir}/src/main/app-resources</directory>
<includes>
<include>README.txt</include>
</includes>
</fileSet>
</additionalResources>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>bundle</goal>
</goals>
</execution>
</executions>
</plugin>
...
</plugins>
<build>
...
</project>