anchor.diff:      make
   
   # Installation
  +ARG MAVEN_VERSION=3.6.3
   ARG MAVEN_FILENAME="apache-maven-${MAVEN_VERSION}-bin.tar.gz"
  +ARG MAVEN_HOME=/opt/maven
   ARG MAVEN_URL="http://archive.apache.org/dist/maven/maven-3/${MAVEN_VERSION}/binaries/${MAVEN_FILENAME}"
   ARG MAVEN_TMP="/tmp/${MAVEN_FILENAME}"
   RUN wget --no-verbose -O ${MAVEN_TMP} ${MAVEN_URL} 
  
positive.code: RUN git clone https://github.com/google/gtest-parallel.git
  
  ENV JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-amd64
  
  ## Website build dependencies
  
  
negative.code: ADD protobuf.patch /pulsar
  
  RUN apt-get update && \
      apt-get install -y software-properties-common && \
      add-apt-repository ppa:openjdk-r/ppa && \
      apt-get update && \
      apt-get install -y tig g++ cmake libssl-dev libcurl4-openssl-dev \
                  liblog4cxx-dev libprotobuf-dev libboost-all-dev google-mock libgtest-dev \
                  libjsoncpp-dev libxml2-utils protobuf-compiler wget \
                  curl doxygen openjdk-8-jdk-headless openjdk-11-jdk-headless clang-format-5.0 \
                  gnupg2 golang-1.13-go zip unzip libzstd-dev libsnappy-dev python3-pip
  
  # Compile and install gtest
  RUN cd /usr/src/gtest && cmake . && make && cp libgtest.a /usr/lib
  