https://userapps.support.sap.com/sap/support/knowledge/en/2542480
2542480 - HTTP 404 error for messagebundle URLs appearing in http traffic | SAP Knowledge Base...
An analysis of http traffic in the Enterprise Portal or Fiori Launchpad is carried out 404 errors are being returned for language-specific message bundle...
https://access.redhat.com/webassets/avalon/d/red-hat-jboss-enterprise-application-platform/7.1.0/javadocs/org/jboss/logging/MessageBundle.html
MessageBundle (Red Hat JBoss Enterprise Application Platform 7.1.0.GA public API)
red hat jboss