ConsumerConnector blocked on Authenticated by SASL Failed.

We've set up Kafka to use ZK authentication and test authentication failures.Test program has been blocked, and Repeated retry connection zk.The log repeated like this:
2016-02-04 17:24:47 INFO FourLetterWordMain:46 - connecting to 10.75.202.42 24002
2016-02-04 17:24:47 INFO ClientCnxn:1211 - Opening socket connection to server 10.75.202.42/10.75.202.42:24002. Will not attempt to authenticate using SASL (unknown error)
2016-02-04 17:24:47 INFO ClientCnxn:981 - Socket connection established, initiating session, client: /10.61.22.215:56060, server: 10.75.202.42/10.75.202.42:24002
2016-02-04 17:24:47 INFO ClientCnxn:1472 - Session establishment complete on server 10.75.202.42/10.75.202.42:24002, sessionid = 0xd013ed38238d1aa, negotiated timeout = 4000
2016-02-04 17:24:47 INFO ZkClient:711 - zookeeper state changed (SyncConnected)
2016-02-04 17:24:47 INFO ClientCnxn:1326 - Unable to read additional data from server sessionid 0xd013ed38238d1aa, likely server has closed socket, closing socket connection and attempting reconnect
2016-02-04 17:24:47 INFO ZkClient:711 - zookeeper state changed (Disconnected)
2016-02-04 17:24:47 INFO ZkClient:934 - Waiting for keeper state SyncConnected