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https://issues.apache.org/jira/browse/SPARK-24421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16679897#comment-16679897
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Sean Owen commented on SPARK-24421:
-----------------------------------
Using reflection to set the Cleaner works. We also have to use reflection to
call Cleaner.clean() in StorageUtils. However this causes an
IllegalAccessException, not because it's private, but because the methods are
of course not exported from the java.base module. This can be disabled with
command line flags but that's not a great solution. I'll look at workarounds
but ideas welcome!
Good news is that this appears to be the only change needed to get compilation
to work, and tests are running pretty well other than this so far.
> sun.misc.Unsafe in JDK9+
> ------------------------
>
> Key: SPARK-24421
> URL: https://issues.apache.org/jira/browse/SPARK-24421
> Project: Spark
> Issue Type: Sub-task
> Components: Build
> Affects Versions: 2.3.0
> Reporter: DB Tsai
> Priority: Major
>
> Many internal APIs such as unsafe are encapsulated in JDK9+, see
> http://openjdk.java.net/jeps/260 for detail.
> To use Unsafe, we need to add *jdk.unsupported* to our code’s module
> declaration:
> {code:java}
> module java9unsafe {
> requires jdk.unsupported;
> }
> {code}
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