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https://issues.apache.org/jira/browse/HADOOP-15190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16341476#comment-16341476
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Chris Douglas commented on HADOOP-15190:
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Whatever's easier for Yetus to work with, then. JaCoCo writes an XML report. It
looks like it produces some summary statistics that could be used to evaluate
how the patch changed test coverage of the files it affected (likely a superset
of those it changed).
Would this suffice? Rather, would the ease of diffing reports help us make a
choice between them?
> 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: Duo Xu
> Priority: Minor
> Attachments: HADOOP-15190.01.patch, 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 outdated.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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