Best practice is to use the JIRA issue title in both the pull request title and in the first line of the commit message.
 - [ ] Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
 - [ ] Run `mvn clean verify` to make sure basic checks pass. A more thorough check will
       be performed on your pull request automatically.
 - [ ] You have run the [Core IT][core-its] successfully.

+ [Contributor License Agreement][cla]
+ [General GitHub documentation](https://help.github.com/)
+ [GitHub pull request documentation](https://docs.github.com/en/github/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request-from-a-fork)
+ [Apache Maven Twitter Account](https://twitter.com/ASFMavenProject)
+ #Maven IRC channel on freenode.org

                    dir(isUnix() ? 'test' : "c:\\mvn-it-${EXECUTOR_NUMBER}.tmp") {
                        def WORK_DIR=pwd()
                        def ITS_BRANCH = env.CHANGE_BRANCH != null ? env.CHANGE_BRANCH :  env.BRANCH_NAME;
                        try {
                          echo "Checkout ITs from branch: ${ITS_BRANCH}"
                          checkout([$class: 'GitSCM',

automatically terminate your rights under this License. However, parties
who have received copies, or rights, from you under this License will
not have their licenses terminated so long as such parties remain in
full compliance.

5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are

  Documentation
  -------------

  The most up-to-date documentation can be found at https://maven.apache.org/.

  Release Notes
  -------------

  The full list of changes can be found at https://maven.apache.org/docs/history.html.

  System Requirements
  -------------------

  JDK:
    8 or above (this is to execute Maven - it still allows you to build against 1.3

          <goal>process</goal>
        </goals>
      </execution>
    </executions>
  </plugin>
  .
  .
  .
</plugins>

* Useful entry points

 * <<<Maven>>> component ({{{./apidocs/org/apache/maven/Maven.html}javadoc}}),
 with its <<<DefaultMaven>>> implementation ({{{./xref/org/apache/maven/DefaultMaven.html}source}}), to drive
 a full Maven execution session

 * <<<ProjectBuilder>>> component ({{{./apidocs/org/apache/maven/project/ProjectBuilder.html}javadoc}}),
 with its <<<DefaultProjectBuilder>>> implementation

                                }
                            }
                            dir ('its') {
                                def ITS_BRANCH = env.CHANGE_BRANCH != null ? env.CHANGE_BRANCH :  env.BRANCH_NAME;
                                try {
                                  echo "Checkout ITs from branch: ${ITS_BRANCH}"
                                  checkout([$class: 'GitSCM',

## resolve links - $0 may be a link to Maven's home
PRG="$0"

# need this for relative symlinks
while [ -h "$PRG" ] ; do
  ls=`ls -ld "$PRG"`
  link=`expr "$ls" : '.*-> \(.*\)$'`
  if expr "$link" : '/.*' > /dev/null; then
    PRG="$link"
  else
    PRG="`dirname "$PRG"`/$link"
  fi
done

saveddir=`pwd`

MAVEN_HOME=`dirname "$PRG"`/..

# make it fully qualified
MAVEN_HOME=`cd "$MAVEN_HOME" && pwd`