anchor.diff:      && update-alternatives --install "/usr/bin/javac" "javac" "${JAVA_HOME}/bin/javac" 1 \
       && update-alternatives --set java "${JRE_HOME}/bin/java" \
       && update-alternatives --set javac "${JAVA_HOME}/bin/javac"
  -        
  +
   # grab gosu for easy step-down from root
   RUN set -x \
  -    && wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture)" \
  -    && wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture).asc" \
  +    && dpkgArch="$(dpkg --print-architecture | awk -F- '{ print $NF }')" \
  +    && wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch" \
  +    && wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch.asc" \
       && export GNUPGHOME="$(mktemp -d)" \
       && gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
       && gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu \
  
positive.code: # set the PLATFORM_HOME environment variable used by hybris
  ENV PLATFORM_HOME=/home/hybris/bin/platform/
  ENV PATH=$PLATFORM_HOME:$PATH
      
  # add hybris user
  RUN useradd -d /home/hybris -u 1000 -m -s /bin/bash hybris
  
  
negative.code: ENV UPDATE 91
  ENV BUILD 14
  
  ENV GOSU_VERSION 1.9
  
  ENV JAVA_HOME /usr/lib/jvm/java-${VERSION}-oracle
  ENV JRE_HOME ${JAVA_HOME}/jre
  