Github user arshadmohammad commented on a diff in the pull request:
https://github.com/apache/zookeeper/pull/179#discussion_r101818408
--- Diff: src/java/main/org/apache/zookeeper/server/NettyServerCnxn.java ---
@@ -268,7 +268,7 @@ private boolean checkFourLetterWord(final Channel
channel,
// We take advantage of the limited size of the length to look
// for cmds. They are all 4-bytes which fits inside of an int
String cmd = FourLetterCommands.getCmdMapView().get(len);
- if (cmd == null) {
+ if (cmd == null ||
!FourLetterCommands.getWhiteListedCmdView().contains(cmd)) {
--- End diff --
same comment as for NIOServerCnxn
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