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https://issues.apache.org/jira/browse/HADOOP-15190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18100032#comment-18100032
 ] 

ASF GitHub Bot commented on HADOOP-15190:
-----------------------------------------

ferdelyi commented on code in PR #8606:
URL: https://github.com/apache/hadoop/pull/8606#discussion_r3673488346


##########
hadoop-cloud-storage-project/hadoop-gcp/pom.xml:
##########
@@ -88,7 +88,7 @@
               <forkCount>${testsThreadCount}</forkCount>
               <reuseForks>false</reuseForks>
               <trimStackTrace>false</trimStackTrace>
-              <argLine>${maven-surefire-plugin.argLine} 
-DminiClusterDedicatedDirs=true</argLine>
+              <argLine>${maven-surefire-plugin.argLine} @{argLine} 
-DminiClusterDedicatedDirs=true</argLine>

Review Comment:
    @{...} is Surefire/Failsafe late property replacement; jacoco:prepare-agent 
sets the argLine property to the -javaagent:… value at runtime, and Surefire 
substitutes @{argLine} when it forks.





> Use Jacoco to generate Unit Test coverage reports
> -------------------------------------------------
>
>                 Key: HADOOP-15190
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15190
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: build
>            Reporter: Duo Xu
>            Assignee: Ferenc Erdelyi
>            Priority: Minor
>              Labels: pull-request-available
>         Attachments: HADOOP-15190-design_2026_July_16.txt, 
> HADOOP-15190.01.patch, aggregate_coverage_report_demo_2026_july_17.png, 
> hadoop_nfs_jacoco_report_2026_july_17.png, jacoco_report_2018_01_25.JPG
>
>
> Currently Hadoop is using maven-clover2-plugin for code coverage, which is 
> outdated. And Atlassian open-sourced clover last year so license cannot be 
> purchased although we can switch to use the license-free version called 
> "openclover".
> This Jira is to replace clover with Jacoco, which is actively maintained by 
> the community.
>   



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