Assume two or more modules have a message bundle with the same name in their /mgnl-i18n/ directory. The current message bundle resolvers loads just one of them - all other are silently ignored.
Java supports resolving multiple resources with the same name on the classpath by providing the ClassLoader.getResources method.
Please consider using this method or fixing it up otherwise. The current implementation is dangerous.
Workaround: add prefixes to the message bundles and hope, that no other module uses the same prefix/name.