code: private void setupHostFromArquillianConfig(final URL arquillianXml) {
  
          final String arquillianLaunch = System.getProperty("arquillian.launch");
  
          if (arquillianLaunch == null) {
              LOG.warn("No launch configuration specified, using default");
  
          } else {
              final String arquillianHost = getActiveArquillianHost(arquillianXml, arquillianLaunch);
              if (arquillianHost != null) {
                  remoteHost = arquillianHost;
              }
          }
  
      }
docs: Obtains the hostname from the active arquillian launch configuration. The configuration is set by the
  <code>arquillian.launch</code> system property. If it is not set, the default will be used.
  
  @param arquillianXml
  the URL to the arquillian xml file