[HTTPCLIENT-2073] HttpClient doesn't authenticate with NTLM on Windows

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 5.0
• Fix Version/s: 5.0.1
• Component/s: HttpClient (Windows)
• Labels: regresion
• Environment: OS: Windows 10 ; JRE: AdoptOpenJdk v11 ; Proxy type: NTLM (Wingate)
• Assignee: Unassigned
• Reporter: Eugen Covaci
• Created: 05/Apr/20 06:26
• Updated: 05/Apr/20 12:49
• Resolved: 05/Apr/20 12:49

Description

Running this:

try (CloseableHttpClient httpClient = WinHttpClients.createDefault()) {
	HttpHost target = HttpHost.create("http://example.com");
	HttpHost proxy = new HttpHost("http", "localhost", 80);
	RequestConfig config = RequestConfig.custom().setProxy(proxy).build();
	HttpGet request = new HttpGet("/");
	request.setConfig(config);
	try (CloseableHttpResponse response = httpClient.execute(target, request)) {
		StatusLine statusLine = new StatusLine(response);
		if (statusLine.getStatusCode() == HttpStatus.SC_OK) {
			System.out.println("Test OK");
		} else if (statusLine.getStatusCode() == HttpStatus.SC_PROXY_AUTHENTICATION_REQUIRED) {
			throw new CredentialException(statusLine.getReasonPhrase());
		}
	}
} catch (Exception e) {
	e.printStackTrace();
}

I get an error. See the attached log file. The same code works with Http Client v 4.5.12