code: public static String getSysInfo() {
          String info = sysInfo.get();
  
          if (info == null) {
              info = String.format(Locale.ENGLISH, SYS_INFO, System.getProperty("os.name", "unknown"));
  
              sysInfo.compareAndSet(null, info);
          }
  
          return info;
      }
docs: This is information about the system on which we are running.