title: Keycloack admin client hangs when attempting to make requests
body: <p>I'm trying to get some user data out of Keycloack using the admin-client SDK. I've built the client like so:</p>
  
  <pre><code>Keycloak kc = KeycloakBuilder.builder() //
              .serverUrl("some_url")
              .realm("some-realm")
              .username("admin") //
              .password("password") //
              .clientId("curl")
              .resteasyClient(new ResteasyClientBuilder().connectionPoolSize(10).connectionCheckoutTimeout(10, TimeUnit.SECONDS).build()) //
              .build();
  
      System.out.println("built");
      UsersResource baz = kc.realm(keycloakConfiguration.getRealm()).users();
      System.out.println(baz.count());
  </code></pre>
  
  <p>What seems to happen is that my program hangs indefinitely when attempting to fetch <code>baz</code> - my debugger never hits it. I'm not quite sure what's going on - my credentials are correct. What is the correct way to cause the builder to either 1. fail after a certain time period, or 2.verify that my credentials are correct? It's maddeninly frustrating to debug.</p>