code: public void stop() {
          if (mCacheDispatcher != null) {
              mCacheDispatcher.quit();
          }
          for (int i = 0; i < mDispatchers.length; i++) {
              if (mDispatchers[i] != null) {
                  mDispatchers[i].quit();
              }
          }
      }
docs: Stops the cache and network dispatchers.