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https://issues.apache.org/jira/browse/HADOOP-7606?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13096485#comment-13096485
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Alejandro Abdelnur commented on HADOOP-7606:
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Those testcases are failing because of HADOOP-7594 which introduced Jersey
dependency, which brings in a bunch of Jackson dependencies as transitive
dependencies with version 1.7.1. Among those is *jackson-core-asl*.
And, hadoop-common declares jackson-mapper-asl which uses version 1.6.9 and has
a jackson-core-asl as transitive dependency.
Because hadoop-common does not declare an explicit dependency on
jackson-core-asl, and because the transitive occurrences of jackson-core-asl
(from jackson-mapper-asl and jersey) are at the same level, the greater version
wins.
And it seems that from 1.6.9 to 1.7.1 there are some API changes, we don't know
if Jersey is using those APIs.
The safest bet would be to upgrade hadoop-project/pom.xml to use Jackson 1.7.1
and tweak the necessary API calls that changed and we are using.
*Maven tip of the day:* 'mvn dependency:tree' helps you understand how
dependencies are pulled/resolved
> Trunk build is failing with a bunch of Avro errors in tests
> -----------------------------------------------------------
>
> Key: HADOOP-7606
> URL: https://issues.apache.org/jira/browse/HADOOP-7606
> Project: Hadoop Common
> Issue Type: Bug
> Components: test
> Affects Versions: 0.24.0
> Reporter: Aaron T. Myers
> Assignee: Aaron T. Myers
> Fix For: 0.24.0
>
>
> As of 2 days ago, 13 tests started failing, all with errors in Avro-related
> tests.
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