code: @Override
      public void destroyResources() {
          if (eurekaConnCleaner != null) {
              // Execute the connection cleaner one final time during shutdown
              eurekaConnCleaner.execute(connectionCleanerTask);
              eurekaConnCleaner.shutdown();
          }
          if (apacheHttpClient != null) {
              apacheHttpClient.close();
          }
      }
docs: Clean up resources.