[GitHub] flink issue #4884: [FLINK-7705] Add JobDetailsHandler

[zjureel]

Github user zjureel commented on the issue:

    https://github.com/apache/flink/pull/4884
  
    Hi @tillrohrmann , could you merge this PR when you're free? Some issues 
depend on `MetricFetcher` and I found it would be added to 
`DispatcherRestEndpoint` in this PR. THX


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