anchor.diff:  RUN mkdir -p $LEIN_INSTALL \
     && wget --quiet https://github.com/technomancy/leiningen/archive/$LEIN_VERSION.tar.gz \
     && echo "Comparing archive checksum ..." \
  -  && echo "4f6e2e189be0a163f400c3a8060896285fe731f7 *$LEIN_VERSION.tar.gz" | sha1sum -c - \
  +  && echo "f286d3e61fec48ad2d52af1d8f23debc77cf7581 *$LEIN_VERSION.tar.gz" | sha1sum -c - \
   
     && mkdir ./leiningen \
     && tar -xzf $LEIN_VERSION.tar.gz  -C ./leiningen/ --strip-components=1 \
  
positive.code:   && wget --quiet https://github.com/technomancy/leiningen/releases/download/$LEIN_VERSION/leiningen-$LEIN_VERSION-standalone.zip \
    && wget --quiet https://github.com/technomancy/leiningen/releases/download/$LEIN_VERSION/leiningen-$LEIN_VERSION-standalone.zip.asc \
  
    && gpg --keyserver pool.sks-keyservers.net --recv-keys \
      296F37E451F91ED1783E402792893DA43FC33005 \
    && echo "Verifying Jar file signature ..." \
    && gpg --verify leiningen-$LEIN_VERSION-standalone.zip.asc \
  
  
negative.code: FROM java:8
  MAINTAINER Paul Lam <paul@quantisan.com>
  
  ENV LEIN_VERSION=2.5.2
  ENV LEIN_INSTALL=/usr/local/bin/
  
  WORKDIR /tmp
  