Workflow6

String branch = env.BRANCH_NAME.toString()
stage('Maven build') {

    //returns a set of git revisions with the name of the committer
   @NonCPS
   def commitList = {
       def changes = ""
       currentBuild.changeSets.each { set ->
           set.each { entry ->
               changes += "${entry.commitId} - ${entry.msg} \n by ${entry.author.fullName}\n"
           }
       }
       return changes
   }

   def handleFailures = {
       if (branch.startsWith("ST-")) {
           step([$class: 'Mailer', notifyEveryUnstableBuild: true, recipients: emailextrecipients([[$class: 'RequesterRecipientProvider']]), sendToIndividuals: true])
       } else {
           step('Send notification') {
               mail(to: 'server@fullgc.com',
                       subject: "Maven build failed for branch: " + env.BRANCH_NAME.toString(),
                       body: "last commits are: " + commitList().toString() + " (<$BUILD_URL/console|Job>)");
           }
           slackSend channel: 'server', color: 'warning', message: "Maven build failed for branch ${branch} \". \nlast Commits are: \n" + commitList().toString() + "\n (<$BUILD_URL/console|Job>)"
       }
   }

   try {
       withMaven(jdk: 'JDK 8 update 66', maven: 'Maven 3.0.5') {
           sh "mvn -Dmaven.test.failure.ignore=true clean install"
       }
       if (currentBuild.result("UNSTABLE")) {
           handleFailures()
       }
   } catch (Exception e) {
       manager.buildFailure()
       handleFailures()
       throw e
   }
}