return;
          }
        }
      } finally {
        monitor.leave();
      }
    }
  }

  /**
   * Saves the state to a stream (that is, serializes it). This merely wraps default serialization
   * within the monitor. The serialization strategy for items is left to underlying Queue. Note that
   * locking is not needed on deserialization, so readObject is not defined, just relying on

            return;
          }
        }
      } finally {
        monitor.leave();
      }
    }
  }

  /**
   * Saves the state to a stream (that is, serializes it). This merely wraps default serialization
   * within the monitor. The serialization strategy for items is left to underlying Queue. Note that
   * locking is not needed on deserialization, so readObject is not defined, just relying on