Github user sudheeshkatkam commented on a diff in the pull request: https://github.com/apache/drill/pull/773#discussion_r113350599 --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/rpc/security/AuthenticationOutcomeListener.java --- @@ -243,4 +249,46 @@ public SaslMessage process(SaslChallengeContext context) throws Exception { } } } + + private static void handleSuccess(SaslChallengeContext context) throws SaslException { + final ClientConnection connection = context.connection; + final SaslClient saslClient = connection.getSaslClient(); + + try { + // Check if connection was marked for being secure then verify for negotiated QOP value for + // correctness. + final String negotiatedQOP = saslClient.getNegotiatedProperty(Sasl.QOP).toString(); --- End diff -- Could .toString() throw NPE, since null QOP is same as "auth"?
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