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https://issues.apache.org/jira/browse/HADOOP-16264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16821117#comment-16821117
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Adam Antal commented on HADOOP-16264:
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Thanks for filing this [~smeng]. Since HADOOP-15338 is an umbrella jira, it
would make sense to assign it a subtask of the uber-Jira - but still collecting
the unit test failures here.
Also, can you upload the maven reactor summary and explicitly naming the
failing unit test on JDK 11? That would be a great starting point.
> [JDK11] Track failing Hadoop unit tests
> ---------------------------------------
>
> Key: HADOOP-16264
> URL: https://issues.apache.org/jira/browse/HADOOP-16264
> Project: Hadoop Common
> Issue Type: Task
> Affects Versions: 3.1.2
> Reporter: Siyao Meng
> Assignee: Siyao Meng
> Priority: Major
>
> Although there are still a lot of work before we could compile Hadoop with
> JDK 11 (HADOOP-15338), it is possible to compile Hadoop with JDK 8 and run
> (e.g. HDFS NN/DN,YARN NM/RM) on JDK 11 at this moment.
> But after compiling branch-3.1.2 with JDK 8, I ran unit tests with JDK 11 and
> there are a LOT of unit test failures (44 out of 96 maven projects contain at
> least one unit test failures according to maven reactor summary). This may
> well indicate some functionalities are actually broken on JDK 11. Some of
> them already have a jira number. Some of them might have been fixed in 3.2.0.
> Some of them might share the same root cause.
> By definition, this jira should be part of HADOOP-15338. But the goal of this
> one is just to keep track of unit test failures and (hopefully) resolve all
> of them soon.
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