$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install OpenJDK 10 on Ubuntu Gnu/Linux Distro

OpenJDK 10 Ubuntu Installation Guide

Hi! The Tutorial shows you Step-by-Step How to Install OpenJDK 10 in Ubuntu GNU/Linux Distribution.

And the Ubuntu OpenJDK 10 Installation is a Free and Open Source Implementation of the Java Platform Standard Edition.

Moreover, Oracle Java JDK/JRE Installation is based on the OpenJDK source code. In Addition, it contains Closed-Source Components.

Ubuntu Java OpenJDK 10 Installation