Can not generate branch job with Jenkinsfile！

[leye yi]

Hi，

We update jenkins to 2.4.0 version ，and use Blue Ocean feature, when we create a new Multibranch Pipeline，the pipeline can not generate the branch job with Jenkinsfile,the Floder is empty

This is our Jenkinsfile：

###

#!Groovy
node {
    //gloable
    def workspace = '''$WORKSPACE'''

    checkout scm

    stage('Build') {
        // Run the maven build
            sh "'mvn' clean package   -Ptest -Dmaven.test.skip=true -U"

        }

    stage('Artifacts') {
            archiveArtifacts 'target/*.war'
    }

    stage('test&sonar'){

        sh "cd ${WORKSPACE}"

        //kill process
        sh '''ps -ef | grep 8090 | grep -v grep | awk '{print $2}'  | sed -e "s/^/kill -9 /g" | sh -'''

        //excute junit
        sh '''mvn clean org.jacoco:jacoco-maven-plugin:prepare-agent install -Pcoverage-per-test'''

        //update data to sonar server
        sh '''mvn sonar:sonar'''

    }

    stage('Deploy'){

        //clean env

        sh '''rm -rf /data/tomcat-bi-support-8090/temp/*

              rm -rf /data/tomcat-bi-support-8090/work/*

              rm -rf /data/tomcat-bi-support-8090/webapps/*

             '''
        sh  '''Pid=$(netstat -nlp | grep 8090 | awk '{print $7}' | awk -F"/" '{ print $1 }')
               if [ ! $Pid ]; then
                   echo "PID is NONE"
               else
                   echo  $Pid
                   kill -9 $Pid
               fi
               '''
        sh    "cp ${workspace}/target/*.war /data/tomcat-bi-support-8090/webapps/bi-support.war"
        sh  '''/data/tomcat-bi-support-8090/bin/startup.sh'''

    }
}

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