Fixes #3705

[m1ngyuan]

No description provided.

[violetagg]

@m1ngyuan We cannot introduce backwards incompatible changes. I would suggest to wait a bit I have more changes to push. For example the change around SocketProtocolFamily will be something like this:

	/**
	 * Run IO loops on a supplied {@link EventLoopGroup} from the {@link LoopResources} container.
	 *
	 * @param loopResources a new loop resources
	 * @param family a specific {@link InternetProtocolFamily} to run with
	 * @return a new {@link UdpClient} reference
	 * @deprecated Prefer {@link #runOn(LoopResources, SocketProtocolFamily)}
	 */
	@Deprecated
	public final UdpClient runOn(LoopResources loopResources, InternetProtocolFamily family) {
		Objects.requireNonNull(loopResources, "loopResources");
		Objects.requireNonNull(family, "family");
		UdpClient dup = super.runOn(loopResources, false);
		dup.configuration().family = family;
		dup.configuration().socketFamily = family.toSocketProtocolFamily();
		return dup;
	}

	/**
	 * Run IO loops on a supplied {@link EventLoopGroup} from the {@link LoopResources} container.
	 *
	 * @param loopResources a new loop resources
	 * @param socketFamily a specific {@link SocketProtocolFamily} to run with
	 * @return a new {@link UdpClient} reference
	 */
	public final UdpClient runOn(LoopResources loopResources, SocketProtocolFamily socketFamily) {
		Objects.requireNonNull(loopResources, "loopResources");
		Objects.requireNonNull(socketFamily, "socketFamily");
		UdpClient dup = super.runOn(loopResources, false);
		dup.configuration().socketFamily = socketFamily;
		return dup;
	}