Dockerfile

FROM rahulcv/bionicbase

LABEL maintainer="rahulcv@hotmail.co.in" 
    
    # required to use add-apt-repository
RUN buildDeps='software-properties-common'; \
    set -x && \
    apt-get update && apt-get install -y $buildDeps --no-install-recommends && \

    # use WebUpd8 PPA
    add-apt-repository ppa:webupd8team/java -y && \
    apt-get update -y && \

    # automatically accept the Oracle license
    echo oracle-java8-installer shared/accepted-oracle-license-v1-1 select true | /usr/bin/debconf-set-selections && \
    apt-get install -y oracle-java8-installer && \
    apt-get install -y oracle-java8-set-default && \
    
    # clean up
    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* && \
    apt-get purge -y --auto-remove $buildDeps && \
    apt-get autoremove -y && apt-get clean

ENV JAVA_HOME /usr/lib/jvm/java-8-oracle