final String refreshKey = "refresh";
    final String suffix = "Suffix";

    CacheLoader<String, String> computeFunction =
        new CacheLoader<String, String>() {
          @Override
          public String load(String key) throws InterruptedException {
            getStartedSignal.countDown();
            letGetFinishSignal.await();
            return key + suffix;
          }
        };

    final String refreshKey = "refresh";
    final String suffix = "Suffix";

    CacheLoader<String, String> computeFunction =
        new CacheLoader<String, String>() {
          @Override
          public String load(String key) throws InterruptedException {
            getStartedSignal.countDown();
            letGetFinishSignal.await();
            return key + suffix;
          }
        };