@Test
public void testIsValidCountryISO2() {

    LOG.info("testIsValidCountryISO2");
    Assert.assertTrue(AddressUtils.isValidCountryISO2("NL"));
    Assert.assertTrue(AddressUtils.isValidCountryISO2("GB"));
    Assert.assertTrue(AddressUtils.isValidCountryISO2("US"));
    Assert.assertFalse(AddressUtils.isValidCountryISO2("UK"));
    Assert.assertFalse(AddressUtils.isValidCountryISO2("UW"));
    Assert.assertFalse(AddressUtils.isValidCountryISO2("AA"));
}