mvn package -Passembly
....
[INFO] --- maven-shade-plugin:3.3.0:shade (default) @ checkstyle ---
[INFO] Including info.picocli:picocli:jar:4.6.3 in the shaded jar.
......
[INFO] Including org.xmlresolver:xmlresolver:jar:data:4.2.0 in the shaded jar.
[INFO] Dependency-reduced POM written at:
    /home/rivanov/java/github/checkstyle/checkstyle/dependency-reduced-pom.xml
[WARNING] Saxon-HE-11.3.jar, antlr4-runtime-4.10.1.jar, checker-qual-3.12.0.jar, 
checkstyle-10.4-SNAPSHOT.jar, commons-beanutils-1.9.4.jar, commons-codec-1.11.jar,
 commons-collections-3.2.2.jar, commons-logging-1.2.jar, error_prone_annotations-2.11.0.jar, 
failureaccess-1.0.1.jar, guava-31.1-jre.jar, httpclient-4.5.13.jar, httpcore-4.4.13.jar,
 j2objc-annotations-1.3.jar, javassist-3.28.0-GA.jar, jsr305-3.0.2.jar,
 listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar, picocli-4.6.3.jar,
 reflections-0.10.2.jar, slf4j-api-1.7.32.jar, xmlresolver-4.2.0-data.jar, xmlresolver-4.2.0.jar
 define 1 overlapping resource: 
[WARNING]   - META-INF/MANIFEST.MF
[WARNING] httpclient-4.5.13.jar, httpcore-4.4.13.jar define 3 overlapping resources: 
[WARNING]   - META-INF/DEPENDENCIES
[WARNING]   - META-INF/LICENSE
[WARNING]   - META-INF/NOTICE
[WARNING] commons-beanutils-1.9.4.jar, commons-codec-1.11.jar, commons-collections-3.2.2.jar, 
commons-logging-1.2.jar define 1 overlapping resource: 
[WARNING]   - META-INF/NOTICE.txt
[WARNING] checker-qual-3.12.0.jar, commons-beanutils-1.9.4.jar, commons-codec-1.11.jar, 
commons-collections-3.2.2.jar, commons-logging-1.2.jar define 1 overlapping resource: 
[WARNING]   - META-INF/LICENSE.txt
[WARNING] maven-shade-plugin has detected that some class files are
[WARNING] present in two or more JARs. When this happens, only one
[WARNING] single version of the class is copied to the uber jar.
[WARNING] Usually this is not harmful and you can skip these warnings,
[WARNING] otherwise try to manually exclude artifacts based on
[WARNING] mvn dependency:tree -Ddetail=true and the above output.
[WARNING] See https://maven.apache.org/plugins/maven-shade-plugin/
[INFO] Attaching shaded artifact.
[INFO] 
[INFO] --- maven-assembly-plugin:3.3.0:single (make-bundle) @ checkstyle ---
.......
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  49.708 s
[INFO] Finished at: 2022-07-02T11:18:52-07:00
[INFO] ------------------------------------------------------------------------

✔ ~/java/github/checkstyle/checkstyle [master|…1] 
$ git status
On branch master
Your branch is up-to-date with 'origin/master'.
Untracked files:
  (use "git add <file>..." to include in what will be committed)

	dependency-reduced-pom.xml

nothing added to commit but untracked files present (use "git add" to track)