This class uses the default ResourceBundles behavior to use the default locale when no bundle for the desired one is not present. With default locale de_DE:

		DefaultI18N i18n = new DefaultI18N();
		i18n.initialize();
		System.out.println(i18n.getString("project-info-reports", new Locale("iw", "IL"), "report.ci-management.access")); 

expected is to get the root bundle with: "Access". But we get: "Zugriff" because of the locale.

This class misses to pass ResourceBundle.Control.getNoFallbackControl(ResourceBundle.Control.FORMAT_PROPERTIES) to the resource bundle.

This was found during work on Maven Project Info Reports Plugin and Maven Surefire while working with custom bundles.