public int encode ( byte[] dst, int dstIndex ) {
        int len = super.encode(dst, dstIndex);
        int exp = size();
        int actual = getLength();
        if ( exp != actual ) {
            throw new IllegalStateException(String.format("Wrong size calculation have %d expect %d", exp, actual));
        }
        return len;
    }


    /**
     * {@inheritDoc}
     *