private static int hash ( byte [ ] name ) { int h = 0 ; for ( int i = 0 ; i < name . length ; i ++ ) { h = 31 * h + name [ i ] ; } if ( h > 0 ) { return h ; } else if ( h == Integer . MIN_VALUE ) { return Integer . MAX_VALUE ; } else { return - h ; } }
Returns the hash code for the given header field name .