[jira] [Created] (FLINK-17700) The callback client of JavaGatewayServer should run in a daemon thread

[Shang Yuanchun (Jira)]

shuiqiangchen created FLINK-17700:
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             Summary: The callback client of JavaGatewayServer should run in a daemon thread
                 Key: FLINK-17700
                 URL: https://issues.apache.org/jira/browse/FLINK-17700
             Project: Flink
          Issue Type: Bug
          Components: API / Python
    Affects Versions: 1.10.0, 1.9.0
            Reporter: shuiqiangchen
             Fix For: 1.10.0, 1.9.0


When starting the JavaGatewayServer, a callback client would also be created and run in an ScheduleExecutorService's thread which is non-daemon by default. Thus, we need to shut down the non-daemon thread and reset a daemon thread back to the call back client.



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