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https://issues.apache.org/jira/browse/FLINK-16503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17054815#comment-17054815
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Zili Chen commented on FLINK-16503:
-----------------------------------
[~leventov] that sounds like a good improvement to have. Would you like to be
the assignee and implement your idea?
> Don't assign ScheduledExecutorService into variables of ExecutorService or
> Executor types
> -----------------------------------------------------------------------------------------
>
> Key: FLINK-16503
> URL: https://issues.apache.org/jira/browse/FLINK-16503
> Project: Flink
> Issue Type: Improvement
> Reporter: Roman Leventov
> Priority: Minor
>
> There is an unnecessary efficiency cost to assigning ScheduledExecutorService
> (typically, ScheduledThreadPoolExecutor) into variables of ExecutorService or
> Executor types.
> Currently, there is one such occurrence in production code, in
> TaskManagerRunner, and three more in tests.
> They could be found using IntelliJ's Structural search pattern (and
> Structural Search inspection):
> {{$x$ = $y$;}}
> Where the Type of {{$x$}} is set to {{ExecutorService|Executor}} ("within
> type hierarchy" checkbox is off), and the Type of {{$y$}} is set to
> {{ScheduledThreadPoolExecutor }}("within type hierarchy" checkbox is on).
>
>
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