question: private void logMax ( String type , String value , String arg , long amount ) { Key key = new Key ( type , value , arg + MAXIMUM_INDICATOR ) ; synchronized ( counts ) { Long oldMax = counts . get ( key ) ; if ( oldMax == null ) { oldMax = amount ; } counts . put ( key , Math . max ( oldMax , amount ) ) ; } }
target:  Logs the maximum amount that was logged for (type, value, arg) under (type, value, arg_MAX).