}

    private void handshake() throws IOException {
        if (handshakeComplete) return;
        doHandshake();
        handshakeComplete = true;
    }

    public URL getURL() {
        return connection.getURL();
    }

    public int getContentLength() {
        try {
            handshake();
        } catch (IOException ex) { }
        return connection.getContentLength();
    }

            throw new RuntimeCIFSException("NTLM handshake failed", e);
        }
        this.handshakeComplete = true;
    }


    @Override
    public URL getURL () {
        return this.connection.getURL();
    }


    @Override
    public int getContentLength () {
        handshake();
        return this.connection.getContentLength();
    }


    @Override