docs: protected void checkParams() {
  
          if ((m_defaultCollectorName == null) || (m_defaultCollectorParam == null)) {
              throw new CmsIllegalArgumentException(
                  Messages.get().container(
                      Messages.ERR_COLLECTOR_DEFAULTS_INVALID_2,
                      m_defaultCollectorName,
                      m_defaultCollectorParam));
          }
      }