[GitHub] zookeeper pull request #496: ZOOKEEPER-3008: Potential NPE in SaslQuorumAuth...

[lujiefsi]

Github user lujiefsi commented on a diff in the pull request:

    https://github.com/apache/zookeeper/pull/496#discussion_r184251756
  
    --- Diff: 
src/java/main/org/apache/zookeeper/server/quorum/auth/SaslQuorumAuthLearner.java
 ---
    @@ -94,7 +94,10 @@ public void authenticate(Socket sock, String hostName) 
throws IOException {
                         principalConfig,
                         QuorumAuth.QUORUM_SERVER_PROTOCOL_NAME,
                         QuorumAuth.QUORUM_SERVER_SASL_DIGEST, LOG, 
"QuorumLearner");
    -
    +            if (sc == null) {
    --- End diff --
    
    For #1:
    Follower#77,Observer#69,QuorumCnxManager#333 all have same patern:
    `try { //root caller } catch (IOException e) {//handler code}`
    #2 and #3, @brettKK .


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