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https://issues.apache.org/jira/browse/IGNITE-6536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16718549#comment-16718549
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ASF GitHub Bot commented on IGNITE-6536:
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Github user sergey-chugunov-1985 closed the pull request at:
https://github.com/apache/ignite/pull/2799
> NPE on registerClassName() with MappedName
> ------------------------------------------
>
> Key: IGNITE-6536
> URL: https://issues.apache.org/jira/browse/IGNITE-6536
> Project: Ignite
> Issue Type: Bug
> Components: binary
> Affects Versions: 2.1
> Reporter: Alexandr Kuramshin
> Assignee: Sergey Chugunov
> Priority: Major
> Fix For: 2.4
>
>
> {{NullPointerException}} occurs in
> {{org.apache.ignite.internal.MarshallerContextImpl#registerClassName}} on
> trying to compare {{mappedName.className()}} of already existed {{typeId}}
> mapping with the new one {{clsName}} has come as a parameter.
> Actually
> {{org.apache.ignite.internal.processors.marshaller.MappedName#className}} may
> not be null but it was. So we should check {{clsName}} comes in
> {{MappedName}} constructor, to prevent same NPEs in the future.
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