paramMap.put(Param.Client.PROXY_PORT, proxyPort);
            final String proxyUsername = fessConfig.getHttpProxyUsername();
            final String proxyPassword = fessConfig.getHttpProxyPassword();
            if (proxyUsername != null && proxyPassword != null) {
                paramMap.put(HcHttpClient.PROXY_CREDENTIALS_PROPERTY, new UsernamePasswordCredentials(proxyUsername, proxyPassword));
            }

        }

        return true;
    }

    String getHttpProxyHost();

    Integer getHttpProxyPortAsInteger();

    String getHttpProxyUsername();

    String getHttpProxyPassword();

    default Proxy getHttpProxy() {
        Proxy proxy = (Proxy) propMap.get(HTML_PROXY);
        if (proxy == null) {

     * The value is, e.g.  <br>
     * comment: Password for HTTP proxy authentication.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getHttpProxyPassword();

    /**
     * Get the value for the key 'http.proxy.password' as {@link Integer}. <br>
     * The value is, e.g.  <br>
     * comment: Password for HTTP proxy authentication.