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

How to Install GlassFish 5.1 on RHEL-based Distros

GNU/Linux RHEL-based Installing Eclipse Glassfish 5.1 Guide

How to Install Glassfish 5.1 Eclipse on RHEL-based GNU/Linux Distributions desktop/server – Step by step Tutorial.

And Eclipse Glassfish 5.1 for CentOS provides a Complete Application Server which serves as the Reference Implementation for the Jakarta EE Specification.

The GlassFish CentOS Installation is Quick and Easy, involving only the execution of a few Basic Shell’s Commands.

How to Install Glassfish on CentOS Step by Step - Featured

GNU/Linux RHEL-based Glassfish 5.1 Jakarta EE Server Installation Guide