ShutdownHint Type — netty Architecture

Source Code

codec-http2/src/main/java/io/netty/handler/codec/http2/Http2Exception.java lines 220–234

    public enum ShutdownHint {
        /**
         * Do not shutdown the underlying channel.
         */
        NO_SHUTDOWN,
        /**
         * Attempt to execute a "graceful" shutdown. The definition of "graceful" is left to the implementation.
         * An example of "graceful" would be wait for some amount of time until all active streams are closed.
         */
        GRACEFUL_SHUTDOWN,
        /**
         * Close the channel immediately after a {@code GOAWAY} is sent.
         */
        HARD_SHUTDOWN
    }