how to use proxy with Apache HttpClient?

Small pin.

public static connect() {

    // some code ...

    HttpClient client = new HttpClient();

    client.getHostConfiguration().setProxy(
        "PROXY-SERVER",
        proxyPort);

    client.getState().setProxyCredentials(
        AuthScope.ANY,
        new UsernamePasswordCredentials("USERNAME", "PASSWORD"));

    // some code ...

}

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