[GitHub] flink issue #4877: [FLINK-4877] About SourceFunction extends Serializable

[greghogan]

Github user greghogan commented on the issue:

    https://github.com/apache/flink/pull/4877
  
    @vim-wj if you are okay with Stephan's suggestion could you close this pull 
request?
    
    Also, a small note: `FLINK-4877` references a [Jira 
ticket](https://issues.apache.org/jira/browse/FLINK-4877) rather than a pull 
request (use `[hotfix]` for simple issues not requiring a ticket).


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