public void onStreamClosed(Channel channel, Http2Stream stream) {
        if (stream.id() == 1) {
            logger.debug("{} HTTP/2 upgrade stream closed: {}", channel, stream.state());
        }
    }
Returns {@code true} if the connection has received a GOAWAY frame with non-zero error code.
core/src/main/java/com/linecorp/armeria/internal/common/Http2GoAwayHandler.java