void abortResponse(Throwable cause) {
        isResponseAborted = true;
        // Try to close the request first, then abort the response if it is already closed.
        if (!tryClose(cause) &&
            response != null && !response.isComplete()) {
            response.abort();
        }
    }
void abortResponse ( Throwable cause ) { isResponseAborted = true ; if ( ! tryClose ( cause ) && response != null && ! response . isComplete ( ) ) { response . abort ( ) ; } }
Aborts the {@link HttpResponse} which responds to this request if it exists.

@see Http2RequestDecoder#onRstStreamRead(ChannelHandlerContext, int, long)