Zoltan Matyus created HIVE-21584:
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Summary: 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
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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