soreana commented on issue #7646:
URL: https://github.com/apache/cloudstack/issues/7646#issuecomment-1597035474

   Hey @nikam14 
   
   Thanks for raising this issue. In CloudStack codes `null` has a different 
meaning from the emptyMap and most of the time it is used to determining if the 
value is missing or for error handling. I don't know what is the purpose of the 
`FakeDhcpSnooper.java` class, but I think that this null value is there for a 
reason.


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