anchor.diff:    rm apache-maven-3.6.2-bin.tar.gz
   
   # ci.xwiki.org expects:
  +# - Java11 to be available at /home/hudsonagent/java11
   # - Java8 to be available at /home/hudsonagent/java8
   # - Java7 to be available at /home/hudsonagent/java7
   # - Maven to be available at /home/hudsonagent/maven
  -# - Default java to be Java8
  +# - Default java to be Java 8
   RUN mkdir -p /home/hudsonagent && \
  - ln -fs $JAVA_HOME /home/hudsonagent/java8 && \
  + ln -fs $JAVA_HOME /home/hudsonagent/java11 && \
  + ln -fs /usr/lib/jvm/adoptopenjdk-8-hotspot-amd64 /home/hudsonagent/java8 && \
    ln -fs /usr/lib/jvm/zulu-7-amd64 /home/hudsonagent/java7 && \
    ln -fs /home/hudsonagent/java8 /home/hudsonagent/java && \
    ln -fs /home/hudsonagent/java/bin/java /usr/bin/java && \
  
positive.code: COPY maven/settings.xml /root/.m2/settings.xml
  
  # Set locales
  RUN apt-get install -y locales
  RUN sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && \
      locale-gen
  ENV LANG en_US.UTF-8
  ENV LANGUAGE en_US:en
  ENV LC_ALL en_US.UTF-8
  
negative.code: ENV FIREFOX_DOWNLOAD_URL_1="https://download-installer.cdn.mozilla.net/pub/firefox/releases/$FIREFOX_VERSION_1/linux-x86_64/en-US/firefox-$FIREFOX_VERSION_1.tar.bz2"
  ENV FIREFOX_VERSION_2 32.0.1
  ENV FIREFOX_DOWNLOAD_URL_2="https://download-installer.cdn.mozilla.net/pub/firefox/releases/$FIREFOX_VERSION_2/linux-x86_64/en-US/firefox-$FIREFOX_VERSION_2.tar.bz2"
  RUN apt-get --no-install-recommends -y install libasound2 && \
    wget --no-verbose -O /tmp/firefox1.tar.bz2 $FIREFOX_DOWNLOAD_URL_1 && \
    rm -rf /opt/firefox && \
    tar -C /opt -xjf /tmp/firefox1.tar.bz2 && \
  