The resource bundle check (rbc) plugin runs some checks on your resource files for consistency.
It wraps the existing Ant based rscbundlecheck target in a maven plugin and prints the check results stdout.

In short words, it good for

• Find missing translations
• Detect missing resource files
• Detect invalid charactes
• ... and several more, available via the wrapped rscbundlecheck

Check out the plugin documentation for details.

The plugin is available in the Labs Maven Repository.

I welcome any  feedback sent to  maven-rbc-plugin at metacube dot net!

Screenshot of an example report: