anchor.diff:  # arguments and variables run stage
   ARG VERSION=0.6.2-SNAPSHOT
   ENV JETTY_HOME /var/lib/jetty
  -ENV RESOURCES_PREFIX=file://${JETTY_HOME}/
  -ENV PROXY_PREFIX=
   ENV JETTY_URL https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-distribution/9.4.24.v20191120/jetty-distribution-9.4.24.v20191120.tar.gz
   ENV JETTY_BASE /jetty-base
   
  
positive.code: 
  # start
  WORKDIR ${JETTY_HOME}
  ENTRYPOINT java -jar ./start.jar jetty.base=${JETTY_BASE} \
  	-D__RESOURCES_PREFIX=${RESOURCES_PREFIX} -D__PROXY_PREFIX=${PROXY_PREFIX}
  
negative.code: RUN echo 'Using maven options ${MAVEN_OPTS}'
  RUN /usr/bin/mvn compile ${MAVEN_OPTS}
  RUN /usr/bin/mvn test package ${MAVEN_OPTS}
  RUN 'Build finished'
  
  
  FROM openjdk:13-alpine AS main
  