question: @ Override public int hashCode ( ) { int hash = _port + ( _isSecure ? 65521 : 31 ) ; byte [ ] uri = _uri ; int length = _uriLength ; for ( int i = length - 1 ; i >= 0 ; i -- ) { hash = 65521 * hash + uri [ i ] ; } CharSequence host = _host ; if ( host != null ) { hash = 65521 * hash + host . hashCode ( ) ; } return hash ; }
target:  Returns a hash code of the key.