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From "Akira Ajisaka (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-11233) Fix javac warnings related to the deprecated APIs after upgrading Jackson
Date Tue, 13 Dec 2016 18:02:58 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11233?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Akira Ajisaka updated HDFS-11233:
---------------------------------
      Priority: Minor  (was: Major)
    Issue Type: Bug  (was: Improvement)

> Fix javac warnings related to the deprecated APIs after upgrading Jackson
> -------------------------------------------------------------------------
>
>                 Key: HDFS-11233
>                 URL: https://issues.apache.org/jira/browse/HDFS-11233
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 3.0.0-alpha2
>            Reporter: Yiqun Lin
>            Assignee: Yiqun Lin
>            Priority: Minor
>             Fix For: 3.0.0-alpha2
>
>         Attachments: HDFS-11233-branch-2.001.patch, HDFS-11233.001.patch
>
>
> After HADOOP-12705, the Jackson version upgraded from 2.2.3 to 2.7.8. This lead many
APIs which we are used in hadoop being deprecated. Since 2.5, these two APIs are deprecated:
{{ObjectReader#readerFor(Class<?> type)}},{{ObjectWriter#writerWithType(JavaType rootType)}}(http://fasterxml.github.io/jackson-databind/javadoc/2.6/com/fasterxml/jackson/databind/ObjectMapper.html).
> According to the doc of ObjectMapper, we can use {{ObjectReader#readerFor(Class<?>
type)}} and {{ObjectWriter#writerFor(JavaType)}} instead.



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