public ChannelMetadataRegistry channelMetadataRegistry() {
        return metadataRegistry;
    }
Return true if this is a server-side channel and the connected client has
indicated that it supports re-authentication, otherwise false

@return true if this is a server-side channel and the connected client has
        indicated that it supports re-authentication, otherwise false
clients/src/main/java/org/apache/kafka/common/network/KafkaChannel.java