Spring RestTemplate and Proxy Auth

After quite a few different options I settled on The below code due to the ability to set the proxy for the RestTemplate at creation so I could refactor it into a separate method. Just to note it also has an additional dependency so keep that in mind.

private RestTemplate createRestTemplate() throws Exception {
    final String username = "myusername";
    final String password = "myPass";
    final String proxyUrl = "proxy.nyc.bigtower.com";
    final int port = 8080;

    CredentialsProvider credsProvider = new BasicCredentialsProvider();
    credsProvider.setCredentials( 
        new AuthScope(proxyUrl, port), 
        new UsernamePasswordCredentials(username, password)
    );

    HttpHost myProxy = new HttpHost(proxyUrl, port);
    HttpClientBuilder clientBuilder = HttpClientBuilder.create();

    clientBuilder.setProxy(myProxy).setDefaultCredentialsProvider(credsProvider).disableCookieManagement();

    HttpClient httpClient = clientBuilder.build();
    HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory();
    factory.setHttpClient(httpClient);

    return new RestTemplate(factory);
}

//Dependencies I used.

<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpclient</artifactId>
    <version>4.5.2</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-web</artifactId>
    <version>4.2.5.RELEASE</version>
</dependency>

the code below worked for me.

RestTemplate restTemplate = new RestTemplate();

CredentialsProvider credsProvider = new BasicCredentialsProvider();
credsProvider.setCredentials( new AuthScope("proxyHost", "proxyPort"), new UsernamePasswordCredentials("proxyUser", "proxyPass") );
HttpClientBuilder clientBuilder = HttpClientBuilder.create();

clientBuilder.useSystemProperties();
clientBuilder.setProxy(new HttpHost("proxyHost", "proxyPort"));
clientBuilder.setDefaultCredentialsProvider(credsProvider);
clientBuilder.setProxyAuthenticationStrategy(new ProxyAuthenticationStrategy());

CloseableHttpClient client = clientBuilder.build();

HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory();
factory.setHttpClient(client);

restTemplate.setRequestFactory(factory);