assertTrue( auth.getCredentials() instanceof NtlmPasswordAuthenticator);

        NtlmPasswordAuthenticator pa = (NtlmPasswordAuthenticator) auth.getCredentials();

        assertEquals("my-domain", pa.getUserDomain());
        assertEquals("my-default-user-id", pa.getUsername());
        assertEquals("my-default-password", pa.getPassword());

        assertTrue(auth.withAnonymousCredentials().withDefaultCredentials().hasDefaultCredentials());