question: private static boolean volumeIsInAnotherExportMask ( ExportMask exportMask , String volumeURIString , TreeMultimap < String , URI > volumesToExportMasks ) { boolean isInAnotherMask = false ; if ( volumesToExportMasks . containsKey ( volumeURIString ) ) { Set < URI > exportMaskURIs = new HashSet < > ( volumesToExportMasks . get ( volumeURIString ) ) ; exportMaskURIs . remove ( exportMask . getId ( ) ) ; isInAnotherMask = ! exportMaskURIs . isEmpty ( ) ; } return isInAnotherMask ; }
target:  Routine will determine if the volume is associated with an ExportMask other than 'exportMask'.