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https://issues.apache.org/jira/browse/AVRO-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13551250#comment-13551250
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Tom White commented on AVRO-1170:
---------------------------------
I decompiled AvroKeyValueOutputFormat from both JARs with javap and indeed they
both have the interface form of TaskAttemptContext:
{noformat}
% javap -c -classpath . org/apache/avro/mapreduce/AvroKeyValueOutputFormat
...
16: invokeinterface #5, 1; //InterfaceMethod
org/apache/hadoop/mapreduce/TaskAttemptContext.getOutputKeyClass:()Ljava/lang/Class;
...
{noformat}
For the Hadoop 1 JAR it should be {{invokevirtual}}. I opened AVRO-1230 to fix
this. Thanks for the report Josh.
> Avro's new mapreduce APIs don't work with Hadoop 2
> --------------------------------------------------
>
> Key: AVRO-1170
> URL: https://issues.apache.org/jira/browse/AVRO-1170
> Project: Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.7.1
> Reporter: Tom White
> Assignee: Tom White
> Fix For: 1.7.3
>
> Attachments: AVRO-1170.patch, AVRO-1170.patch, AVRO-1170.patch,
> AVRO-1170.patch, AVRO-1170.patch
>
>
> Avro does not compile against Hadoop since some interfaces were changed to
> classes between Hadoop 1 and 2 (e.g. TaskAttemptContext).
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