code: private void clearObsoleteFiles( Transfer item )
      {
          Transfer httpMeta = item.getSiblingMeta( HTTP_METADATA_EXT );
          try
          {
              httpMeta.delete();
          }
          catch ( IOException e )
          {
              logger.warn( "Failed to delete {}", httpMeta.getResource() );
          }
  
      }
docs: Clear obsolete files after a meta is generated. This may be http download metadata, etc.
  @param item