code: private static int resolveDomainTimeoutAdder() {
          String propValue = WildFlySecurityManager.getPropertyPrivileged(DOMAIN_TEST_SYSTEM_PROPERTY, DEFAULT_DOMAIN_TIMEOUT_STRING);
          if (sysPropDomainValue == null || !sysPropDomainValue.equals(propValue)) {
              // First call or the system property changed
              sysPropDomainValue = propValue;
              int number = -1;
              try {
                  number = Integer.valueOf(sysPropDomainValue);
              } catch (NumberFormatException nfe) {
                  // ignored
              }
  
              if (number > 0) {
                  defaultDomainValue = number; // this one is in ms
              } else {
                  ControllerLogger.MGMT_OP_LOGGER.invalidDefaultBlockingTimeout(sysPropDomainValue, DOMAIN_TEST_SYSTEM_PROPERTY, DEFAULT_DOMAIN_TIMEOUT_ADDER);
                  defaultDomainValue = DEFAULT_DOMAIN_TIMEOUT_ADDER;
              }
          }
          return defaultDomainValue;
      }
docs: Allows testsuites to shorten the domain timeout adder