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https://issues.apache.org/jira/browse/HADOOP-7328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13096759#comment-13096759
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Hadoop QA commented on HADOOP-7328:
-----------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12492930/HADOOP-7328.r7.diff
against trunk revision .
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 2 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9)
warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed unit tests in hadoop-common-project.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/133//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HADOOP-Build/133//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-annotations.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HADOOP-Build/133//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-auth-examples.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HADOOP-Build/133//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-common.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HADOOP-Build/133//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-auth.html
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/133//console
This message is automatically generated.
> When a serializer class is missing, return null, not throw an NPE.
> ------------------------------------------------------------------
>
> Key: HADOOP-7328
> URL: https://issues.apache.org/jira/browse/HADOOP-7328
> Project: Hadoop Common
> Issue Type: Improvement
> Components: io
> Affects Versions: 0.20.2
> Reporter: Harsh J
> Assignee: Harsh J
> Labels: io, serialization
> Fix For: 0.23.0
>
> Attachments: 0.22-HADOOP-7328.r7.diff, 0.23-HADOOP-7328.r7.diff,
> HADOOP-7328.r1.diff, HADOOP-7328.r2.diff, HADOOP-7328.r3.diff,
> HADOOP-7328.r4.diff, HADOOP-7328.r4.diff, HADOOP-7328.r5.diff,
> HADOOP-7328.r6.diff, HADOOP-7328.r7.diff
>
>
> When you have a key/value class that's non Writable and you forget to attach
> io.serializers for the same, an NPE is thrown by the tasks with no
> information on why or what's missing and what led to it. I think a better
> exception can be thrown by SerializationFactory instead of an NPE when a
> class is not found accepted by any of the loaded ones.
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