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From "Benoit MERIAUX (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2485) Handle removal of Java Unsafe in Java9
Date Sun, 21 Oct 2018 14:21:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16658231#comment-16658231
] 

Benoit MERIAUX commented on FLINK-2485:
---------------------------------------

Hi,
I did a quick search on usage of {code:java}sun.misc.unsafe{code} and there is actually 39
occurences, mainly in core module which concentrates 34 hits, and notably memory package with
26 occurences.

there is a replacement solution with
{code:java}VarHandle{code}
starting from jdk9, so it is not retrocompatible with < jdk9

Unsafe are still included in jdk 9 and 10, and removed from 11.

So this issue is not on the critical path to build with jdk 9 and 10.

> Handle removal of Java Unsafe in Java9
> --------------------------------------
>
>                 Key: FLINK-2485
>                 URL: https://issues.apache.org/jira/browse/FLINK-2485
>             Project: Flink
>          Issue Type: Task
>          Components: Core
>            Reporter: Henry Saputra
>            Priority: Major
>
> With potential Oracle will remove Java Unsafe[1]  from Java9 we need to make sure we
have upgrade path for Apache Flink
> [1] https://docs.google.com/document/d/1GDm_cAxYInmoHMor-AkStzWvwE9pw6tnz_CebJQxuUE/edit?pli=1



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