public static final String PROXY_AUTH_SCHEME_PROPERTY = "proxyAuthScheme";

    /** Property name for proxy credentials setting */
    public static final String PROXY_CREDENTIALS_PROPERTY = "proxyCredentials";

    /** Property name for user agent setting */
    public static final String USER_AGENT_PROPERTY = "userAgent";

    /** Property name for robots.txt enabled setting */

        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.
     *

        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.
     *