Only two changes in the new version of logging. (https://github.com/jboss-logging/jboss-logging/compare/3.1.2.GA...3.1.4.GA) The main commit needed is the one that puts the type.getClassLoader() within a privileged block. The other commit just adds support for log4j2.
Pro rebuild PR: https://github.com/jbossas/jboss-eap/pull/1148
1148 merged for ER1
Verified with EAP 6.3.0 ER1