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https://issues.apache.org/jira/browse/HADOOP-18006?focusedWorklogId=680654&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-680654
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ASF GitHub Bot logged work on HADOOP-18006:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 12/Nov/21 05:37
Start Date: 12/Nov/21 05:37
Worklog Time Spent: 10m
Work Description: virajjasani opened a new pull request #3648:
URL: https://github.com/apache/hadoop/pull/3648
### Description of PR
When we specify any maven plugin with execution tag in the parent as well as
child modules, child module plugin overrides parent plugin. For instance, when
banned-illegal-imports is applied for any child module with only one banned
import (let’s say Preconditions), then only that banned import is covered by
that child module and all imports defined in parent module (e.g Sets, Lists
etc) are overridden and they are no longer applied.
As of today, hadoop-hdfs module will not complain about Sets even if i
import it from guava banned imports but on the other hand, hadoop-yarn module
doesn’t have any child level banned-illegal-imports defined so yarn modules
will fail if Sets guava import is used.
So going forward, it would be good to replace guava imports with Hadoop’s
own imports module-by-module and only at the end, we should add new entry to
parent pom banned-illegal-imports list.
### For code changes:
- [X] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
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Issue Time Tracking
-------------------
Worklog Id: (was: 680654)
Remaining Estimate: 0h
Time Spent: 10m
> maven-enforcer-plugin's execution of banned-illegal-imports gets overridden
> in child poms
> -----------------------------------------------------------------------------------------
>
> Key: HADOOP-18006
> URL: https://issues.apache.org/jira/browse/HADOOP-18006
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Viraj Jasani
> Assignee: Viraj Jasani
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> When we specify any maven plugin with execution tag in the parent as well as
> child modules, child module plugin overrides parent plugin. For instance,
> when {{banned-illegal-imports}} is applied for any child module with only one
> banned import (let’s say {{{}Preconditions{}}}), then only that banned import
> is covered by that child module and all imports defined in parent module (e.g
> Sets, Lists etc) are overridden and they are no longer applied.
> After this
> [commit|https://github.com/apache/hadoop/commit/62c86eaa0e539a4307ca794e0fcd502a77ebceb8],
> hadoop-hdfs module will not complain about {{Sets}} even if i import it from
> guava banned imports but on the other hand, hadoop-yarn module doesn’t have
> any child level {{banned-illegal-imports}} defined so yarn modules will fail
> if {{Sets}} guava import is used.
> So going forward, it would be good to replace guava imports with Hadoop’s own
> imports module-by-module and only at the end, we should add new entry to
> parent pom {{banned-illegal-imports}} list.
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