[GitHub] [zookeeper] maoling commented on a change in pull request #1646: ZOOKEEPER-4218:zooKeeperSaslClient will product a null state event and then caused NPE while used switch(state) to deal with event

[GitBox <gi...@apache.org>]

maoling commented on a change in pull request #1646:
URL: https://github.com/apache/zookeeper/pull/1646#discussion_r601994178



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File path: zookeeper-server/src/main/java/org/apache/zookeeper/client/ZooKeeperSaslClient.java
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@@ -369,6 +370,7 @@ private void sendSaslPacket(ClientCnxn cnxn) throws SaslException {
         try {
             cnxn.sendPacket(request, response, cb, ZooDefs.OpCode.sasl);
         } catch (IOException e) {
+            saslState = SaslState.FAILED;
             throw new SaslException("Failed to send SASL packet to server due " + "to IOException:", e);
         }
     }

Review comment:
       @smallYellowCat 
   Could you please add an unit case for this change?




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