question: private String createPortAttribute ( final int [ ] ports ) { final StringBuffer portValue = new StringBuffer ( ) ; for ( int i = 0 , len = ports . length ; i < len ; i ++ ) { if ( i > 0 ) { portValue . append ( "," ) ; } portValue . append ( ports [ i ] ) ; } return portValue . toString ( ) ; }
target:  Retrieves valid Port attribute value for the given ports array. e.g. "8000,8001,8002"