@Test public void testMessageSourceResourceBundle() { ResourceBundleMessageSource ms = new ResourceBundleMessageSource(); ms.setBasename("org/springframework/context/support/messages"); MessageSourceResourceBundle rbe = new MessageSourceResourceBundle(ms, Locale.ENGLISH); assertEquals("message1", rbe.getString("code1")); assertTrue(rbe.containsKey("code1")); MessageSourceResourceBundle rbg = new MessageSourceResourceBundle(ms, Locale.GERMAN); assertEquals("nachricht2", rbg.getString("code2")); assertTrue(rbg.containsKey("code2")); }