docs: private boolean releaseFileLock() {
  
          // Note:  Closing the super class RandomAccessFile has the
          //        side-effect of closing the file lock's FileChannel,
          //        so we do not deal with this here.
          boolean success = false;
  
          if (this.fileLock == null) {
              success = true;
          } else {
              try {
                  this.fileLock.release();
  
                  success = true;
              } catch (Exception e) {}
              finally {
                  this.fileLock = null;
              }
          }
  
          return success;
      }