### Question:
Messages { public static ResourceBundle getBundle() { if ( RESOURCE_BUNDLE == null ) { RESOURCE_BUNDLE = ResourceBundle.getBundle( BUNDLE_NAME ); } return RESOURCE_BUNDLE; } private  Messages(); static ResourceBundle getBundle(); static String getString( String key ); static String getString( String key, String param1 ); static String getString( String key, String param1, String param2 ); static String getString( String key, String param1, String param2, String param3 ); static String getString( String key, String param1, String param2, String param3, String param4 );  }### Answer:
@Test public void testGetBundle() throws Exception { assertNotNull( Messages.getBundle() ); }