WARN Failed to send SSL Close message

[????]

WARN Failed to send SSL Close message  
(org.apache.kafka.common.network.SslTransportLayer)
java.io.IOException: Unexpected status returned by SSLEngine.wrap, expected 
CLOSED, received OK. Will not send close message to peer.
        at 
org.apache.kafka.common.network.SslTransportLayer.close(SslTransportLayer.java:157)
        at 
org.apache.kafka.common.network.KafkaChannel.close(KafkaChannel.java:45)
        at org.apache.kafka.common.network.Selector.close(Selector.java:442)
        at org.apache.kafka.common.network.Selector.close(Selector.java:434)
        at org.apache.kafka.common.network.Selector.close(Selector.java:194)
        at org.apache.kafka.clients.NetworkClient.close(NetworkClient.java:336)
        at 
org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:152)
        at java.lang.Thread.run(Thread.java:745)