public String getFieldrefName(int index) {
        FieldrefInfo f = (FieldrefInfo)getItem(index);
        if (f == null)
            return null;
        else {
            NameAndTypeInfo n = (NameAndTypeInfo)getItem(f.nameAndTypeIndex);
            if(n == null)
                return null;
            else
                return getUtf8Info(n.memberName);
        }
    }