} catch (final IOException ex) {}
        return connection.getLastModified();
    }

    @Override
    public String getHeaderField(final String header) {
        try {
            handshake();
        } catch (final IOException ex) {}
        return connection.getHeaderField(header);
    }

    private Map getHeaderFields0() {
        if (headerFields != null) {
            return headerFields;

    public long getLastModified() {
        handshake();
        return this.connection.getLastModified();
    }

    @Override
    public String getHeaderField(final String header) {
        handshake();
        return this.connection.getHeaderField(header);
    }

    private Map<String, List<String>> getHeaderFields0() {
        if (this.headerFields != null) {
            return this.headerFields;

                when(conn.getHeaderField(entry.getKey())).thenReturn(entry.getValue().get(0));
            }

            // Mock by index - getHeaderField(int)
            // Index 0 is status line, then headers in order
            int index = 1;
            for (Map.Entry<String, List<String>> entry : headers.entrySet()) {
                when(conn.getHeaderField(index++)).thenReturn(entry.getValue().get(0));