anchor.diff:  #
   FROM centos:7 as java-dev
   
  -MAINTAINER Ronny Trommer <ronny@opennms.org>
  +LABEL maintainer "Ronny Trommer <ronny@opennms.org>"
   
   ARG JAVA_VERSION=1.8.0
   ARG JAVA_VERSION_DETAIL=1.8.0.131
  
positive.code: #
  FROM java-dev as maven
  
  MAINTAINER Ronny Trommer <ronny@opennms.org>
  
  ARG MAVEN_VERSION="3.5.0"
  ARG MAVEN_URL="http://ftp.halifax.rwth-aachen.de"
  
negative.code: #
  FROM build-env as opennms-build
  
  LABEL maintainer "Ronny Trommer <ronny@opennms.org>"
  
  ARG OPENNMS_SRC=/usr/src/opennms
  ARG OPENNMS_HOME=/opt/opennms
  