anchor.diff:      yum clean all && rm -rf /var/cache/yum/*
   
   # install maven
  -ENV MAVEN_VERSION=3.3.3
  +ENV MAVEN_VERSION=3.3.9
   ENV M2_HOME=/usr/local/maven
   RUN wget --directory-prefix=/tmp \
       http://mirror.synyx.de/apache/maven/maven-3/${MAVEN_VERSION}/binaries/apache-maven-${MAVEN_VERSION}-bin.tar.gz && \
  
positive.code: FROM blacklabelops/jenkins-swarm
  MAINTAINER Steffen Bleul <sbl@blacklabelops.com>
  
  # Need root to build image
  
negative.code:     alternatives --install /usr/bin/mvn mvn /usr/local/maven/bin/mvn 100
  
  # install gradle
  ENV GRADLE_VERSION=2.10
  ENV GRADLE_HOME=/usr/local/gradle
  RUN wget --no-check-certificate --directory-prefix=/tmp \
      https://services.gradle.org/distributions/gradle-${GRADLE_VERSION}-bin.zip && \
  