package.license:
dev-java/oracle-jdk-bin Oracle-BCLA-JavaSE
download jdk-8u144-linux-x64.tar.gz
copy jdk-8u144-linux-x64.tar.gz to /usr/portage/distfiles
chown portage:portage jdk-8u144-linux-x64.tar.gz
chmod -x jdk-8u144-linux-x64.tar.gz
emerge -v oracle-jdk-bin
emerge -v tomcat