@Nullable
    public static InetSocketAddress remoteAddress(@Nullable Channel ch) {
        if (ch == null) {
            return null;
        }

        if (ch instanceof DomainSocketChannel) {
            return findAddress((DomainSocketChannel) ch);
        } else {
            return (InetSocketAddress) ch.remoteAddress();
        }
    }
Finds the {@link SSLSession} of the current TLS connection.

@return the {@link SSLSession} if found, or {@code null} if not found or {@link Channel} is {@code null}.
core/src/main/java/com/linecorp/armeria/internal/common/util/ChannelUtil.java