Github user mxm commented on the pull request:
https://github.com/apache/flink/pull/1945#issuecomment-218987472
`GlobalConfiguration` doesn't ensure that the config has been loaded when
you call `get()`. It will give you an empty `Configuration` if you do not call
`loadConfiguration` explicitly. If you pass the config after you called the
load method, it is clear that the config has been loaded.
Your code works, I'll will just open a follow-up issue to make
GlobalConfiguration more explicit, i.e. fail on `get()` if the config hasn't
been loaded explicitly.
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