buildDiscarder(logRotator(numToKeepStr: '20', artifactNumToKeepStr: '5'))
    timeout(time: 180, unit: 'MINUTES')
  }
  parameters {
    string( defaultValue: 'master', description: 'Core Its branch (default master)',
            name: 'ITS_BRANCH' )
  }
  stages {
    stage("Build Maven Core") {
      steps {

[test-results]: https://ci-maven.apache.org/job/Maven/job/maven-box/job/maven/job/master/lastCompletedBuild/testReport/
[build-status]: https://img.shields.io/jenkins/s/https/ci-maven.apache.org/job/Maven/job/maven-box/job/maven/job/master.svg?
[build-tests]: https://img.shields.io/jenkins/t/https/ci-maven.apache.org/job/Maven/job/maven-box/job/maven/job/master.svg?
[maven-home]: https://maven.apache.org/

            if (!src.isEmpty()) {
                List<Plugin> tgt = target.getPlugins();
                Map<Object, Plugin> master = new LinkedHashMap<>(tgt.size() * 2);

                for (Plugin element : tgt) {
                    Object key = getPluginKey().apply(element);
                    master.put(key, element);
                }

                Map<Object, List<Plugin>> predecessors = new LinkedHashMap<>();

                        } catch (Throwable e) {
                          echo "Failure checkout ITs branch: ${ITS_BRANCH} - fallback master branch"
                          checkout([$class: 'GitSCM',
                                  branches: [[name: "*/master"]],
                                  extensions: [[$class: 'CloneOption', depth: 1, noTags: true, shallow: true]],

We accept Pull Requests via GitHub. The [developer mailing list][dev-ml-list] is the
main channel of communication for contributors.  
There are some guidelines which will make applying PRs easier for us:
+ Create a topic branch from where you want to base your work (this is usually the master branch).
  Push your changes to a topic branch in your fork of the repository.
+ Make commits of logical units.

          repo=maven-integration-testing
          target_branch=master
          target_user=apache
          if [ "$GITHUB_EVENT_NAME" == "pull_request" ]; then
            user=${PR_HEAD_LABEL%:*}
            branch=${PR_HEAD_LABEL#*:}
          else
            user=${GITHUB_REPOSITORY%/*}
            branch=${GITHUB_REF#refs/heads/}
          fi
          if [ $branch != "master" ]; then

See here [1] on how to compile for your platform and here [2] how libraries
follow Jansi's directory and filename conventions.

[1] https://github.com/fusesource/jansi/tree/master/src/main/native

  <version>0.9-${changelist}-SNAPSHOT</version>
  <packaging>pom</packaging>
  <name>Multi Chapter Parent Project</name>

  <!-- Optimized from https://github.com/sonatype/maven-example-en/tree/master/examples/ch-multi -->
  <modules>
    <module>simple-parent</module>
  </modules>

                                } catch (Throwable e) {
                                  echo "Failure checkout ITs branch: ${ITS_BRANCH} - fallback master branch"
                                  checkout([$class: 'GitSCM',
                                          branches: [[name: "*/master"]],
                                          extensions: [[$class: 'CloneOption', depth: 1, noTags: true, shallow: true]],

                        master.put(key, plugin);
                    }
                }

                Map<Object, List<Plugin>> predecessors = new LinkedHashMap<>();
                List<Plugin> pending = new ArrayList<>();
                for (Plugin element : tgt) {
                    Object key = getPluginKey().apply(element);
                    Plugin existing = master.get(key);