def call()

in vars/vaultStageIT.groovy [25:59]
29 lines of code
2 McCabe index (conditional complexity)

def call(List<String> additionalNodeLabels, List<Integer> additionalJdkVersions, List<String> additionalMavenVersions) {
    PipelineSupport pipelineSupport = PipelineSupport.getInstance()
    parallel pipelineSupport.stepsFor('Integration Tests', additionalNodeLabels.toSet(), additionalJdkVersions.toSet(), additionalMavenVersions.toSet(), 
        {String nodeLabel, int jdkVersion, String mavenVersion, boolean isMainBuild -> 
            return {
                stage("Run Integration Tests  (JDK ${jdkVersion}, Maven ${mavenVersion}, ${nodeLabel})") {
                    node(nodeLabel) {
                        timeout(60) {
                            echo "Running on node ${env.NODE_NAME}"
                            // first clear workspace
                            deleteDir()
                            // running ITs needs pom.xml
                            checkout scm
                            // Unstash the previously stashed build results.
                            unstash name: 'integration-test-classes'
                            try {
                                // install to be tested artifact to local repository
                                // https://www.jenkins.io/doc/pipeline/steps/pipeline-utility-steps/#findfiles-find-files-in-the-workspace
                                def jarFiles = findFiles(glob: '**/target/*.jar')
                                if (jarFiles.length == 0) {
                                    echo "Found no JAR artifact to install in local repository"
                                } else {
                                    pipelineSupport.executeMaven(this, "install:install-file -Dfile=${jarFiles[0].path} -DpomFile=pom.xml", false)
                                }
                                // execute ITs
                                pipelineSupport.executeMaven(this, jdkVersion, mavenVersion, 'failsafe:integration-test failsafe:verify', false)
                            } finally {
                                junit '**/target/failsafe-reports*/**/*.xml'
                            }
                        }
                    }
                }
            }
        }, true)
}