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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8104) Inconsistent Jackson versions
Date Wed, 02 May 2012 12:44:54 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13266519#comment-13266519
] 

Hudson commented on HADOOP-8104:
--------------------------------

Integrated in Hadoop-Hdfs-0.23-Build #245 (See [https://builds.apache.org/job/Hadoop-Hdfs-0.23-Build/245/])
    svn merge -c 1294784 FIXES: HADOOP-8104. Inconsistent Jackson versions (tucu) (Revision
1332802)

     Result = SUCCESS
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1332802
Files : 
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/branches/branch-0.23/hadoop-project/pom.xml

                
> Inconsistent Jackson versions
> -----------------------------
>
>                 Key: HADOOP-8104
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8104
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 0.23.3
>            Reporter: Colin Patrick McCabe
>            Assignee: Alejandro Abdelnur
>             Fix For: 0.23.3, 2.0.0
>
>         Attachments: HADOOP-7470.patch, HADOOP-8104.patch, HADOOP-8104.patch, dependency-tree-old.txt
>
>
> This is a maven build issue.
> Jersey 1.8 is pulling in version 1.7.1 of Jackson.  Meanwhile, we are manually specifying
that we want version 1.8 of Jackson in the POM files.  This causes a conflict where Jackson
produces unexpected results when serializing Map objects.
> How to reproduce: try this code:
> {quote}
> ObjectMapper mapper = new ObjectMapper();
>  Map<String, Object> m = new HashMap<String, Object>();
> mapper.writeValue(new File("foo"), m);
> {quote}
> You will get an exception:
> {quote}
> Exception in thread "main" java.lang.NoSuchMethodError: org.codehaus.jackson.type.JavaType.isMapLikeType()Z
> at org.codehaus.jackson.map.ser.BasicSerializerFactory.buildContainerSerializer(BasicSerializerFactory.java:396)
> at org.codehaus.jackson.map.ser.BeanSerializerFactory.createSerializer(BeanSerializerFactory.java:267)
> {quote}
> Basically the inconsistent versions of various Jackson components are causing this NoSuchMethod
error.
> As far as I know, this only occurs when serializing maps-- that's why it hasn't been
found and fixed yet.

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