anchor.diff:      && cmake --build Release \
       && cp /build/ccls/Release/ccls /usr/local/bin \
       && cd / \
  -    && rm -rf /build/ccls \
  -    && apt-get purge -y --auto-remove $deps
  +    && rm -rf /build/ccls
   
   # -------- YouCompleteMe: Enable C/C++, JavaScript/TypeScript and Java --------
   RUN set -ex; \
  
positive.code:         gdb \
          bear \
          valgrind \
          autoconf \
          automake \
          libtool \
          cmake \
      ';\
      apt-get update && apt-get install -y --no-install-recommends \
          $deps \
  
negative.code: 
  # ------------------------ OpenJDK --------------------------------------------
  RUN set -ex; \
      mkdir -p /build/jdk \
      && cd /build/jdk \
      && wget $JAVA_DOWNLOAD_URL \
      && tar -zxf ${JAVA_PKG_VERSION}_linux-x64_bin.tar.gz --directory /usr/lib/jvm \
      && ln -s /usr/lib/jvm/bin/java /usr/local/bin/java \
      && ln -s /usr/lib/jvm/bin/javac /usr/local/bin/javac \
      \
      # Verification
      && java --version \
      && javac --version \
      \
      # Clean up
      && cd / \
      && rm -rf /build/jdk
  
  # -----------------------------------------------------------------------------
  #                          Install Libraries/Tools
  