question: private static Map < String , String > resourceBundleMap ( ResourceBundle bundle ) { final HashMap < String , String > map = new HashMap < String , String > ( ) ; final Enumeration < String > e = bundle . getKeys ( ) ; while ( e . hasMoreElements ( ) ) { final String key = e . nextElement ( ) ; map . put ( key , ( String ) bundle . getObject ( key ) ) ; } return Collections . unmodifiableMap ( map ) ; }
target:  Returns an unmodifiable Map of the given bundle.