docs: private void blockingRefresh() {
          try {
              if (blockingRefreshLock
                      .tryLock(BLOCKING_REFRESH_MAX_WAIT_IN_SECONDS, TimeUnit.SECONDS)) {
                  try {
                      // Return if successful refresh occurred while waiting for the lock
                      if (!shouldDoBlockingRefresh()) {
                          return;
                      } else {
                          // Otherwise do a synchronous refresh if the last lock holder was unable to
                          // refresh the value
                          refreshValue();
                          return;
                      }
                  } finally {
                      blockingRefreshLock.unlock();
                  }
              }
          } catch (InterruptedException ex) {
              handleInterruptedException("Interrupted waiting to refresh the value.", ex);
          }
          // Couldn't acquire the lock. Just try a synchronous refresh
          refreshValue();
      }