Upgrade needed to use privileged blocks for adding jboss-logmanager attachments. The only change is the doPrivileged blocks, https://github.com/jboss-logging/slf4j-jboss-logmanager/compare/1.0.2.GA...1.0.3.GA
Prod rebuild PR: https://github.com/jbossas/jboss-eap/pull/1158
1158 merged for ER1
Verified with EAP 6.3.0 ER1