For sake of performace this method should be slightly modified:
[code]
    public Object nullSafeGet(ResultSet resultSet, String[] names,
Object owner) throws HibernateException, SQLException { 
        String name = resultSet.getString(names[0]); 
        E result = null; 
        if (!resultSet.wasNull()) { 
            result = Enum.valueOf(clazz, name); 
        } 
        return result; 
    } 
[/code]
to
[code]
    public Object nullSafeGet(ResultSet resultSet, String[] names,
Object owner) throws HibernateException, SQLException { 
        E result = null; 
        if (!resultSet.wasNull()) { 
            String name = resultSet.getString(names[0]); 
            result = Enum.valueOf(clazz, name); 
        } 
        return result; 
    } 
[/code]