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https://issues.apache.org/jira/browse/KAFKA-16879?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chia-Ping Tsai resolved KAFKA-16879.
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Fix Version/s: 3.9.0
Resolution: Fixed
> SystemTime should use singleton mode
> ------------------------------------
>
> Key: KAFKA-16879
> URL: https://issues.apache.org/jira/browse/KAFKA-16879
> Project: Kafka
> Issue Type: Improvement
> Reporter: dujian0068
> Assignee: dujian0068
> Priority: Minor
> Fix For: 3.9.0
>
>
> Currently, the {{SystemTime}} class, which provides system time-related
> functionalities such as getting the current timestamp 、sleep、and await can be
> instantiated multiple times.
> Howerver, system time is unique，In an application, the time obtained in
> different places should be consistent, But now the time obtained by using
> the Java System class to interact with the underlying layer is the same。
> So I suggest changing it to a singleton mode， reflect the uniqueness of
> system time in design
>
> [https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/common/utils/SystemTime.java|https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/common/utils/SystemTime.java]
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