anchor.diff:          ocaml \
           openjdk-8-jdk \
           openjdk-11-jdk \
  +        openjdk-16-jdk \
           openssh-client \
           pkg-config \
           ruby-full \
  
positive.code: FROM ubuntu:18.04
  
  RUN uname -a && uname -m
  
  
negative.code:     java -version && \
      jenv add /usr/lib/jvm/java-8-openjdk-$JDK_PLATFORM && \
      jenv add /usr/lib/jvm/java-11-openjdk-$JDK_PLATFORM && \
      jenv add /usr/lib/jvm/java-16-openjdk-$JDK_PLATFORM && \
      jenv versions && \
      jenv global 11 && \
      java -version
  
  RUN bash -c "source ~/.sdkman/bin/sdkman-init.sh && sdk install gradle 7.2"
  
  COPY README.md /README.md
  
  