[GitHub] [storm] RuiLi8080 commented on a change in pull request #3296: [STORM-3661] handle exception when netty server receive unexpected message

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RuiLi8080 commented on a change in pull request #3296:
URL: https://github.com/apache/storm/pull/3296#discussion_r446788932



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File path: storm-client/src/jvm/org/apache/storm/messaging/netty/Server.java
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@@ -260,7 +260,15 @@ public void channelActive(Channel c) {
 
     @Override
     public void received(Object message, String remote, Channel channel) throws InterruptedException {
-        List<TaskMessage> msgs = (List<TaskMessage>) message;
+        List<TaskMessage> msgs;
+
+        try {
+            msgs = (List<TaskMessage>) message;
+        } catch (ClassCastException e) {
+            LOG.error("Worker netty server receive message other than the expected class List<TaskMessage>", e);

Review comment:
       @agresch Remote added.
   @bipinprasad Yes the exception message can be displayed just as the `ClassCastException` in the description. 




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