anchor.diff:      && localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8 \
       && echo -e 'LANG="en_US.UTF-8"' > /etc/default/locale \
       && echo -e 'LANGUAGE="en_US:en"' >> /etc/default/locale \
  +    && mkdir -p ${NPM_CACHE_DIR} ${MAVEN_CACHE_DIR} ${GRADLE_CACHE_DIR} \
       && curl -s ${NVM_INSTALL_URL} | bash \
       && curl -s ${SDKMAN_INSTALL_URL} | bash \
       && source ~/.bashrc \
  
positive.code:     && npm install -g --unsafe-perm build-tools \
      && ln -sf /usr/share/zoneinfo/${TZ} /etc/localtime \
      && echo ${TZ} > /etc/timezone \
      && rm -rf /var/lib/apt/lists/* /tmp/*
  
  COPY sdkconfig /root/.sdkman/etc/config
  COPY cnpm /usr/local/bin/cnpm
  COPY cmvn /usr/local/bin/cmvn
  
  CMD ["bash"]
  
negative.code: ENV ORACLEJDK_VERSION 8.0.171-oracle
  ENV NPM_CACHE_DIR /data/npm_cache
  ENV MAVEN_CACHE_DIR /data/maven_cache
  ENV GRADLE_CACHE_DIR /data/gradle_cache
  ENV GRADLE_USER_HOME ${GRADLE_CACHE_DIR}
  ENV SDKMAN_INSTALL_URL https://get.sdkman.io
  ENV NVM_INSTALL_URL https://raw.githubusercontent.com/creationix/nvm/v${NVM_VERSION}/install.sh
  
  