[jira] [Created] (FLINK-4386) Add as way to assert that code runs in the RpcEndpoint's Main Thread

[Shang Yuanchun (Jira)]

Stephan Ewen created FLINK-4386:
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             Summary: Add as way to assert that code runs in the RpcEndpoint's Main Thread
                 Key: FLINK-4386
                 URL: https://issues.apache.org/jira/browse/FLINK-4386
             Project: Flink
          Issue Type: Sub-task
          Components: Distributed Coordination
         Environment: FLIP-6 feature branch
            Reporter: Stephan Ewen
             Fix For: 1.2.0


It would greatly help stability if we were able to add assertions to the code, like

{code}
private void someCallbackHandler() {
    assert isRunningInMainThread()
}
{code}



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