} catch (IOException ex) { }
        return connection.getHeaderFieldInt(header, def);
    }

    public long getHeaderFieldDate(String header, long def) {
        try {
            handshake();
        } catch (IOException ex) { }
        return connection.getHeaderFieldDate(header, def);
    }

    public String getHeaderFieldKey(int index) {
        try {
            handshake();

        handshake();
        return this.connection.getHeaderFieldInt(header, def);
    }


    @Override
    public long getHeaderFieldDate ( String header, long def ) {
        handshake();
        return this.connection.getHeaderFieldDate(header, def);
    }


    @Override
    public String getHeaderFieldKey ( int index ) {
        handshake();