code: public static String getVMIP(String hostIpPort, String id) throws TargetException {
  
  		//TODO Expecting more interoperable implem... /compute/urn:uuid:ID for Scalair, /ID for CA !
  		if(! hostIpPort.endsWith("/compute") && id.startsWith("urn:uuid:")) id = id.substring(9);
  		String vmIp = null;
  		URL url = null;
  		try {
  			CookieHandler.setDefault(new CookieManager(null, CookiePolicy.ACCEPT_ALL));
  			url = new URL("http://" + hostIpPort + "/" + id);
  		} catch (MalformedURLException e) {
  			throw new TargetException(e);
  		}
  
  		HttpURLConnection httpURLConnection = null;
  		DataInputStream in = null;
  		try {
  			httpURLConnection = (HttpURLConnection) url.openConnection();
  			httpURLConnection.setRequestMethod("GET");
  			httpURLConnection.setRequestProperty("Accept", "application/json");
  
  			in = new DataInputStream(httpURLConnection.getInputStream());
  			ByteArrayOutputStream out = new ByteArrayOutputStream();
  			Utils.copyStreamSafely(in, out);
  
  			// Parse JSON response to extract VM IP
  			ObjectMapper objectMapper = new ObjectMapper();
  			JsonResponse rsp = objectMapper.readValue(out.toString( "UTF-8" ), JsonResponse.class);
  			vmIp = rsp.getHostsystemname();
  			if(Utils.isEmptyOrWhitespaces(vmIp)) vmIp = rsp.getHostname();
  			if(Utils.isEmptyOrWhitespaces(vmIp) && rsp.getAttributes() != null)
  				vmIp = rsp.getAttributes().getHostname();
  
  		} catch (IOException e) {
  			throw new TargetException(e);
  
  		}  finally {
  			Utils.closeQuietly(in);
  			if (httpURLConnection != null) {
  				httpURLConnection.disconnect();
  			}
  		}
  
  		return vmIp;
  	}
docs: Retrieves VM IP.
  @param hostIpPort IP and port of OCCI server (eg. "172.16.225.91:8080")
  @param id Unique VM ID
  @return The VM's IP address
  @throws TargetException