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From "Zoltan Matyus (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-21584) Java 11 preparation: system class loader is not URLClassLoader
Date Thu, 25 Apr 2019 15:56:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-21584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zoltan Matyus updated HIVE-21584:
---------------------------------
    Attachment: HIVE-21584.10.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, HIVE-21584.08.patch, HIVE-21584.09.patch,
HIVE-21584.10.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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