private static boolean areAttachmentLabelsUnique ( List < String > labels ) { Map < String , String > map = new TreeMap < String , String > ( String . CASE_INSENSITIVE_ORDER ) ; for ( int i = 0 ; i < labels . size ( ) ; i ++ ) { map . put ( labels . get ( i ) , labels . get ( i ) ) ; } if ( labels . size ( ) == map . size ( ) ) { return true ; } else { return false ; } }
This method checks if strings in a list are unique