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https://issues.apache.org/jira/browse/HADOOP-13386?focusedWorklogId=747176&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-747176
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ASF GitHub Bot logged work on HADOOP-13386:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 24/Mar/22 12:22
Start Date: 24/Mar/22 12:22
Worklog Time Spent: 10m
Work Description: aajisaka commented on pull request #3990:
URL: https://github.com/apache/hadoop/pull/3990#issuecomment-1077570607
Hi @pjfanning - Would you ignore the findbugs error?
> A known null value is checked to see if it is an instance of
org.apache.avro.util.Utf8 in
org.apache.hadoop.mapreduce.jobhistory.JobSubmitted.customDecode(ResolvingDecoder)
At JobSubmitted.java:checked to see if it is an instance of
org.apache.avro.util.Utf8 in
org.apache.hadoop.mapreduce.jobhistory.JobSubmitted.customDecode(ResolvingDecoder)
At JobSubmitted.java:[line 1238]
The class is generated by Avro and the generated source code is as follows.
I think it is a bug in Avro side and we can simply ignore.
```
java.lang.CharSequence k0 = null;
k0 = in.readString(k0 instanceof Utf8 ? (Utf8)k0 : null);
java.lang.CharSequence v0 = null;
v0 = in.readString(v0 instanceof Utf8 ? (Utf8)v0 : null);
```
Sorry for the late response.
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Issue Time Tracking
-------------------
Worklog Id: (was: 747176)
Time Spent: 3h 50m (was: 3h 40m)
> Upgrade Avro to 1.8.x or later
> ------------------------------
>
> Key: HADOOP-13386
> URL: https://issues.apache.org/jira/browse/HADOOP-13386
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: build
> Reporter: Ben McCann
> Priority: Major
> Labels: pull-request-available
> Time Spent: 3h 50m
> Remaining Estimate: 0h
>
> Avro 1.8.x makes generated classes serializable which makes them much easier
> to use with Spark. It would be great to upgrade Avro to 1.8.x
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