@Test
public void testCreateLocale04() throws Exception {

    // 前処理
    DataSourceMessageSource ds = new DataSourceMessageSource();
    DBMessage message = new DBMessage("test01", "ja", "JP", null, "テストメッセージ０１");
    ds.defaultLocale = null;
    // テスト実施
    Locale returnLocale = ds.createLocale(message);
    // 判定
    assertEquals("ja", returnLocale.getLanguage());
    assertEquals("JP", returnLocale.getCountry());
    assertEquals("", returnLocale.getVariant());
}