Matthias Pohl created FLINK-26122:
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Summary: JobManagerMetricGroup.addJob returns null when already
being closed
Key: FLINK-26122
URL: https://issues.apache.org/jira/browse/FLINK-26122
Project: Flink
Issue Type: Bug
Components: Runtime / Coordination, Runtime / Metrics
Affects Versions: 1.16.0
Reporter: Matthias Pohl
We might want to make this more stable by throwing a {{IllegalStateException}}
instead. The value will be returned to the {{JobMaster}} and passed into the
scheduler. Additionally, it's called in the {{JobMaster}}'s {{stopScheduling}}
method where it is closed and would issue a {{NullPointerException}} if not
properly handled earlier.
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