preemptive http basic authentication in apache http client library

BasicAuth.java

public class BasicAuth
{

public static void main(String a[])throws Exception
{
  System.out.println(getHttpResponse("78.101.139.84"));
}

public static String getHttpResponse(final String ip) throws IOException
	{
		String responseString = null;
		final HttpHost targetHost = new HttpHost("examplehost.com", 443, "https");
		final CredentialsProvider credsProvider = new BasicCredentialsProvider();
		credsProvider.setCredentials(AuthScope.ANY,
				new UsernamePasswordCredentials("username","password"));
		final AuthCache authCache = new BasicAuthCache();
		authCache.put(targetHost, new BasicScheme());

		// Add AuthCache to the execution context
		final HttpClientContext context = HttpClientContext.create();
		context.setCredentialsProvider(credsProvider);
		context.setAuthCache(authCache);

		RequestConfig.Builder requestBuilder = RequestConfig.custom();
		requestBuilder = requestBuilder.setAuthenticationEnabled(true);

		final CloseableHttpClient httpclient = HttpClients.custom().setDefaultRequestConfig(requestBuilder.build())
				.setDefaultCredentialsProvider(credsProvider).build();


		try
		{
			final HttpGet httpget = new HttpGet("url");
			
			System.out.println("Executing request " + httpget.getRequestLine());
			final CloseableHttpResponse resp = httpclient.execute(httpget, context);
			try
			{
				System.out.println("----------------------------------------");
				System.out.println(resp.getStatusLine());
				responseString = EntityUtils.toString(resp.getEntity());
				System.out.println("the response string is :" + responseString);
				EntityUtils.consume(resp.getEntity());
			}
			finally
			{
				resp.close();
			}
		}
		finally
		{
			httpclient.close();
		}
		return responseString;
	}
}