apt-get update && apt-get install -y wget
wget --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/9.0.1+11/jdk-9.0.1_linux-x64_bin.tar.gz -O jdk.tar.gz
tar -xzf jdk.tar.gz -C /opt/
mv /opt/jdk-9.0.1 /opt/jdk