code: CommitLogSegment recycle()
      {
          try
          {
              sync();
          }
          catch (FSWriteError e)
          {
              logger.error("I/O error flushing {} {}", this, e.getMessage());
              throw e;
          }
  
          close();
  
          return new CommitLogSegment(getPath());
      }
docs: Recycle processes an unneeded segment file for reuse.
  
  @return a new CommitLogSegment representing the newly reusable segment.