assertEquals("userId", StringUtil.decapitalize("UserId"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testEndsWithIgnoreCase() throws Exception {
        assertTrue(StringUtil.endsWithIgnoreCase("setHogeAaa", "Aaa"));
        assertTrue(StringUtil.endsWithIgnoreCase("setHogeAaa", "aaa"));