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https://issues.apache.org/jira/browse/FLINK-14499?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16958461#comment-16958461
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Zili Chen commented on FLINK-14499:
-----------------------------------
Thanks for your attention [~AT-Fieldless]. I've assigned the issue to you. You
can use an IDE like IDEA and list out the usage of
`MetricRegistry#getMetricQueryServiceGatewayRpcAddress`(from/to its use point).
For example some testing implements like {{HATestingDispatcher}} always receive
a {{null}} {{metricQueryServiceAddress}} because it is not into use. However,
it is possible you could figure out to replace it with a non-null dummy value.
> MetricRegistry#getMetricQueryServiceGatewayRpcAddress is Nonnull
> ----------------------------------------------------------------
>
> Key: FLINK-14499
> URL: https://issues.apache.org/jira/browse/FLINK-14499
> Project: Flink
> Issue Type: Improvement
> Reporter: Zili Chen
> Assignee: AT-Fieldless
> Priority: Minor
>
> As codebase moved, I suspect
> {{MetricRegistry#getMetricQueryServiceGatewayRpcAddress}} is now non-null.
> One can try to figure it out and if so, refactor related code a bit.
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