There is an extra directory in artemis/journal module. It is a leftover from the native binary library. On x86_64 architecture, there is a leftover for i686 and vice versa, see:
x86_64 architecture
# rpm -qf /opt/rh/eap7/root/usr/share/wildfly/modules/system/layers/base/org/apache/activemq/artemis/journal/main/lib/linux-i686 eap7-wildfly-modules-7.1.0-38.Beta1_redhat_5.1.ep7.el7.noarch
i386 architecture
# rpm -qf /opt/rh/eap7/root/usr/share/wildfly/modules/system/layers/base/org/apache/activemq/artemis/journal/main/lib/linux-x86_64/ eap7-wildfly-modules-7.1.0-38.Beta1_redhat_5.1.ep7.el6.noarch
Although these are quite harmless, it should be quite easy fix to remove them as we already do the same with related binaries.