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https://issues.apache.org/jira/browse/KAFKA-12358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17288430#comment-17288430
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Dongjin Lee commented on KAFKA-12358:
-------------------------------------
https://github.com/apache/kafka/pull/10176
Here is a draft implementation of Java 11 migration. If anyone encounters this
issue, please notify me - then I will submit the KIP. Thanks in advance.
> Migrate to Java 11
> ------------------
>
> Key: KAFKA-12358
> URL: https://issues.apache.org/jira/browse/KAFKA-12358
> Project: Kafka
> Issue Type: Improvement
> Reporter: Dongjin Lee
> Assignee: Dongjin Lee
> Priority: Major
> Labels: needs-kip
>
> I found this problem when I was working on
> [KAFKA-12324|https://issues.apache.org/jira/browse/KAFKA-12324].
> As of present, Kafka Connect and Trogdor are using Jetty 9. Although Jetty's
> stable release is 9.4, the Jetty community is now moving their focus to Jetty
> 10 and 11, which requires Java 11 as a prerequisite. To minimize potential
> security vulnerability, Kafka should migrate into Java 11 + Jetty 11 as soon
> as Jetty 9.4 reaches the end of life. As a note, [Jetty 9.2 reached End of
> Life in March
> 2018|https://www.eclipse.org/lists/jetty-announce/msg00116.html] and 9.3 also
> did in [February
> 2020|https://www.eclipse.org/lists/jetty-announce/msg00140.html].
> In other words, the necessity of moving to Java 11 is heavily affected by
> Jetty's maintenance plan. Jetty 9.4 seems like still be supported for a
> certain period of time, but it is worth being aware of these relationships
> and having a migration plan beforehand.
> For the java-scala compatibility, we have no issue. The recommended Scala
> versions to Java 11 are 2.13.0 and 2.12.4, and we are already using the later
> version. See:
> https://docs.scala-lang.org/overviews/jdk-compatibility/overview.html
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