Try to add rat-plugin and exclude everything * / .* as a workaround that you do not have ASF license in headers. <plugin> <groupId> org.apache.rat </groupId> <artifactId> apache-rat-plugin </artifactId> <executions> <execution> <id> rat-check </id> <goals> <goal> check </goal> </goals> <configuration> <excludes combine.children= "append" > <exclude> **/README.md </exclude> <exclude> .git/**/* </exclude> <exclude> **/.idea </exclude> <exclude> **/.svn/**/* </exclude> <exclude> src/test/resources/**/* </exclude> <exclude> **/*.jj </exclude> <exclude> src/test/resources/**/*.css </exclude> <exclude> **/*.iml </exclude> <exclude> **/*.ipr </exclude> <exclude> **/*.iws </exclude> <exclude> **/*.tag </exclude> <exclude> **/*.releaseBackup </exclude> <exclude> **/*.versionsBackup </exclude> <exclude> **/*.next </exclude> <exclude> **/release.properties </exclude> <exclude> **/dependency-reduced-pom.xml </exclude> <exclude> **/buildNumber.properties </exclude> <exclude> .mvn/timing.properties </exclude> <exclude> .gitignore </exclude> <exclude> **/META-INF/services/* </exclude> </excludes> </configuration> </execution> </executions> </plugin>