14 was not available for me, 16 would have been.
@ -195,7 +195,7 @@ if [[ $INSTALL_SIM == "true" ]]; then
java_version=11
gazebo_version=9
elif [[ "${UBUNTU_RELEASE}" == "20.04" ]]; then
java_version=14
java_version=13
gazebo_version=11
else