### Question:
ConfigUtils { public static boolean isNotEmpty(String value) { return !isEmpty(value); } private  ConfigUtils(); static boolean isNotEmpty(String value); static boolean isEmpty(String value); static int getPid();  }### Answer:
@Test public void isNotEmpty() throws Exception { String[] fileNames = {null, "", "false", "0", "null", "N/A"}; for (String name : fileNames) { Assert.assertFalse(ConfigUtils.isNotEmpty(name)); } }