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Posted to common-issues@hadoop.apache.org by "Zoltan Haindrich (JIRA)" <ji...@apache.org> on 2017/11/21 16:10:02 UTC
[jira] [Commented] (HADOOP-12760) sun.misc.Cleaner has moved to a
new location in OpenJDK 9
[ https://issues.apache.org/jira/browse/HADOOP-12760?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16260965#comment-16260965 ]
Zoltan Haindrich commented on HADOOP-12760:
-------------------------------------------
Are there any chance this will be available in Hadoop-3.0 ?
> sun.misc.Cleaner has moved to a new location in OpenJDK 9
> ---------------------------------------------------------
>
> Key: HADOOP-12760
> URL: https://issues.apache.org/jira/browse/HADOOP-12760
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Chris Hegarty
> Assignee: Akira Ajisaka
> Attachments: HADOOP-12760.00.patch, HADOOP-12760.01.patch, HADOOP-12760.02.patch, HADOOP-12760.03.patch
>
>
> This is a heads-up: there are upcoming changes in JDK 9 that will require, at least, a small update to org.apache.hadoop.crypto.CryptoStreamUtils & org.apache.hadoop.io.nativeio.NativeIO.
> OpenJDK issue no. 8148117: "Move sun.misc.Cleaner to jdk.internal.ref" [1], will move the Cleaner class from sun.misc to jdk.internal.ref. There is ongoing discussion about the possibility of providing a public supported API, maybe in the JDK 9 timeframe, for releasing NIO direct buffer native memory, see the core-libs-dev mail thread [2]. At the very least CryptoStreamUtils & NativeIO [3] should be updated to have knowledge of the new location of the JDK Cleaner.
> [1] https://bugs.openjdk.java.net/browse/JDK-8148117
> [2] http://mail.openjdk.java.net/pipermail/core-libs-dev/2016-January/038243.html
> [3] https://github.com/apache/hadoop/search?utf8=✓&q=sun.misc.Cleaner
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