code: private ExecutorService getExecutorService(){
          if (executors == null) {
              try {
                  executors = Executors.newCachedThreadPool();
              } catch (Exception e) {
                  HMSAgentLog.e("create thread service error:" + e.getMessage());
              }
          }
  
          return executors;
      }
docs: 获取缓存线程池
  @return 缓存线程池服务