this.proxyAuthScheme = proxyAuthScheme;
    }

    /**
     * Sets the proxy credentials.
     *
     * @param proxyCredentials The proxy credentials
     */
    public void setProxyCredentials(final Credentials proxyCredentials) {
        this.proxyCredentials = proxyCredentials;
    }

    /**
     * Sets the default MIME type for unknown content.
     *