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https://issues.apache.org/jira/browse/HIVE-21584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltan Matyus updated HIVE-21584:
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Attachment: HIVE-21584.07.patch
> Java 11 preparation: system class loader is not URLClassLoader
> --------------------------------------------------------------
>
> Key: HIVE-21584
> URL: https://issues.apache.org/jira/browse/HIVE-21584
> Project: Hive
> Issue Type: Task
> Components: Hive
> Affects Versions: 4.0.0
> Reporter: Zoltan Matyus
> Assignee: Zoltan Matyus
> Priority: Major
> Attachments: HIVE-21584.01.patch, HIVE-21584.02.patch,
> HIVE-21584.03.patch, HIVE-21584.04.patch, HIVE-21584.05.patch,
> HIVE-21584.06.patch, HIVE-21584.07.patch
>
>
> Currently, Hive assumes that the system class loader is instance of
> {{URLClassLoader}}. In Java 11 this is not the case. There are a few
> (unresolved) JIRAs about specific occurrences of {{URLClassLoader}} (e.g.
> [HIVE-21237|https://issues.apache.org/jira/browse/HIVE-21237],
> [HIVE-17909|https://issues.apache.org/jira/browse/HIVE-17909]), but no
> _"remove all occurrences"_. Also I couldn't find umbrella "Java 11 upgrade"
> JIRA.
> This ticket is to remove all unconditional casts of any random class loader
> to {{URLClassLoader}}.
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