@Override
    public void close() {
        // set EOS
        setEos();
        // drain the queue
        drain();
    }
Closes this {@link InputStream} and releases any system resources associated with the stream.
Sets EOS, if it has not been set yet. Drains all the allocated buffers.
core/src/main/java/com/linecorp/armeria/internal/common/stream/ByteBufsInputStream.java