Jakarta ee Mybatis的结果包含大小写

这是我的接口方法：

HashMap<String,Object> getUserById(int id);

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如您所见，结果包含大写和小写，但我不想使用大写，如何操作？

尝试在查询中强制使用小写

select MY_COLUMN as from my_column ...

如果这不起作用，请查看

@Test
    public void testGetUsers() 
    {
            HashMap<String,Object> maps = new HashMap<String, Object>();
            int id = 5;
        maps = mapper.getUserById(id);
        System.out.println(maps);
        Assert.assertNotNull(maps);
    }

{DEPARTMENT_ID=1, phone=3423456, NAME=张飞, USER_ID=5, department_id=1, password=1111, PHONE=3423456, username=zhangfei, email=zhangfei@qq.com, MOBILE=12345678963, name=张飞, user_id=5, USERNAME=zhangfei, EMAIL=zhangfei@qq.com, PASSWORD=1111, mobile=12345678963}

select MY_COLUMN as from my_column ...