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Posted to issues@kylin.apache.org by "Xiaoxiang Yu (Jira)" <ji...@apache.org> on 2020/07/10 11:39:01 UTC
[jira] [Closed] (KYLIN-4523) Loading HttpContext class twice leads
to LinkageError error.
[ https://issues.apache.org/jira/browse/KYLIN-4523?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xiaoxiang Yu closed KYLIN-4523.
-------------------------------
Resolved in release 3.1.0 (2020-07-03)
> Loading HttpContext class twice leads to LinkageError error.
> ------------------------------------------------------------
>
> Key: KYLIN-4523
> URL: https://issues.apache.org/jira/browse/KYLIN-4523
> Project: Kylin
> Issue Type: Bug
> Reporter: Zhichao Zhang
> Assignee: Zhichao Zhang
> Priority: Minor
> Fix For: v3.1.0
>
>
> After upgrading httpclient to 4.3.6, on CDH 5.7 env it will lead to LinkageError occured, because it loades HttpContext class in two different ClassLoader (CustomizedWebappClassloader and AppClassLoader):
> Error message:
> {code:java}
> java.lang.LinkageError: loader constraint violation: when resolving method "org.apache.http.protocol.HttpCoreContext.<init>(Lorg/apache/http/protocol/HttpContext;)V" the class loader (instance of org/apache/kylin/ext/CustomizedWebappClassloader) of the current class, org/apache/http/client/protocol/HttpClientContext, and the class loader (instance of sun/misc/Launcher$AppClassLoader) for the method's defining class, org/apache/http/protocol/HttpCoreContext, have different Class objects for the type org/apache/http/protocol/HttpContext used in the signature{code}
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