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Date: Fri, 12 Oct 2012 05:37:46 +0000 (UTC)
From: "Lars Hofhansl (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
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Subject: [jira] [Closed] (HBASE-6049) Serializing "List" containing null
 elements will cause NullPointerException in
 HbaseObjectWritable.writeObject()
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     [ https://issues.apache.org/jira/browse/HBASE-6049?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lars Hofhansl closed HBASE-6049.
--------------------------------

    
> Serializing "List" containing null elements will cause NullPointerException in HbaseObjectWritable.writeObject()
> ----------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-6049
>                 URL: https://issues.apache.org/jira/browse/HBASE-6049
>             Project: HBase
>          Issue Type: Bug
>          Components: io
>    Affects Versions: 0.94.0
>            Reporter: Maryann Xue
>            Assignee: Maryann Xue
>             Fix For: 0.94.1, 0.96.0
>
>         Attachments: 6049-v3.patch, HBASE-6049.patch, HBASE-6049-v2.patch, HBASE-6049-v3.patch
>
>
> An error case could be in Coprocessor AggregationClient, the median() function handles an empty region and returns a List Object with the first element as a Null value. NPE occurs in the RPC response stage and the response never gets sent.

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