public List<?> getPassword(String userName) throws Exception{
        Session session = HibernateSessionFactory.getSession();
        tx = session.beginTransaction();
        List<?> list = null;
        try {
            String HQL = "from SysUserInfo t where t.userName = ?";
            Query query = session.createQuery(HQL).setParameter(0, userName);
            list = query.list();
            tx.commit();
            return list;
        } finally {
            this.closeSession();
        }
    }

 public InvocationTargetException(Throwable target) {
    super((Throwable)null);  // Disallow initCause
        this.target = target;
    }