table.set(index, newFirst);
          this.count = newCount; // write-volatile
          return true;
        }
      }

      return false;
    }

    /**
     * Performs routine cleanup following a read. Normally cleanup happens during writes. If cleanup
     * is not observed after a sufficient number of reads, try cleaning up from the read thread.
     */
    void postReadCleanup() {

          table.set(index, newFirst);
          this.count = newCount; // write-volatile
          return true;
        }
      }

      return false;
    }

    /**
     * Performs routine cleanup following a read. Normally cleanup happens during writes. If cleanup
     * is not observed after a sufficient number of reads, try cleaning up from the read thread.
     */
    void postReadCleanup() {