code: public String getUaaUrl() {
  		if (this.uaaUrl == null) {
  			try {
  				Map<?, ?> response = this.restTemplate
  						.getForObject(this.cloudControllerUrl + "/info", Map.class);
  				this.uaaUrl = (String) response.get("token_endpoint");
  			}
  			catch (HttpStatusCodeException ex) {
  				throw new CloudFoundryAuthorizationException(Reason.SERVICE_UNAVAILABLE,
  						"Unable to fetch token keys from UAA");
  			}
  		}
  		return this.uaaUrl;
  	}
docs: Return the URL of the UAA.
  @return the UAA url