HttpClient 4.3.6 returning "WARNING: NEGOTIATE authentication error"

Question

I'm running HttpClient 4.3.6 in Java 6. When I run the following code, the authentication appears to succeed. The Status Code returned is 200. However, I'm getting the following error message in the console:

WARNING: NEGOTIATE authentication error: Invalid name provided (Mechanism level: Could not load configuration file C:\Windows\krb5.ini (the system cannot find the file specified))

How do I eliminate this warning?

CloseableHttpClient httpclient = HttpClients.createDefault();
HttpContext localContext = new BasicHttpContext();
HttpGet method = new HttpGet(url);
CredentialsProvider credsProvider = new BasicCredentialsProvider();
credsProvider.setCredentials(
   new AuthScope(host, 80),
   new NTCredentials(userid, password, host, login_domain));

localContext.setAttribute(HttpClientContext.CREDS_PROVIDER, credsProvider);

String filePath = null;

// Execute the method.
CloseableHttpResponse clientResponse = httpclient.execute(method, localContext);

HttpEntity entity = clientResponse.getEntity();

int statusCode = clientResponse.getStatusLine().getStatusCode();

if (statusCode != HttpStatus.SC_OK) {
   System.err.println("Method failed: " + method.getRequestLine());
}

Answer 1

You need to pass in a set of target preferred auth schemes:

Create your httpClient like this:

PoolingHttpClientConnectionManager connPool = new PoolingHttpClientConnectionManager();

connPool.setMaxTotal(200);
connPool.setDefaultMaxPerRoute(200);

// Authentication
CredentialsProvider credsProvider = new BasicCredentialsProvider();
credsProvider.setCredentials(AuthScope.ANY, new NTCredentials(username, password, workstation, domain));


RequestConfig config = RequestConfig.custom().setTargetPreferredAuthSchemes(Arrays.asList(AuthSchemes.NTLM)).build();

CloseableHttpClient httpClient = HttpClients.custom().setConnectionManager(connPool).setDefaultRequestConfig(config).build();

HttpClientContext context = HttpClientContext.create();
context.setCredentialsProvider(credsProvider);