code: public static Option propagateSystemProperties(final String... keys) {
  
          final List<PropagateSystemPropertyOption> options = new ArrayList<PropagateSystemPropertyOption>();
          for (String key : keys) {
              options.add(propagateSystemProperty(key));
          }
          return composite(options.toArray(new Option[options.size()]));
      }
docs: Propagates a list of system properties from the driver VM to the container VM. Only
  meaningful for remote containers.
  <p>
  For each given system property which is set in the driver VM, Pax Exam will set the system
  property with the same key to the same value in the container VM.
  
  @param keys
  list of system property keys
  @return option that propagates system properties