[jira] (MPMD-163) PMD issues are reported multiple times

["Florent PAILLARD (JIRA)" <ji...@codehaus.org>]

    [ https://jira.codehaus.org/browse/MPMD-163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=321887#comment-321887 ] 

Florent PAILLARD commented on MPMD-163:
---------------------------------------

Hello Oliver,

Thanks for having released the 3.0.1 quickly. It's easier to maven-release with no -SNAPSHOT version of plugins within our POM!
                
> PMD issues are reported multiple times
> --------------------------------------
>
>                 Key: MPMD-163
>                 URL: https://jira.codehaus.org/browse/MPMD-163
>             Project: Maven 2.x PMD Plugin
>          Issue Type: Bug
>          Components: PMD
>    Affects Versions: 3.0
>         Environment: Apache Maven 3.0.4
> Sun jdk1.6.0_04 on Debian Lenny
> Oracle jdk 1.7.0_13 on Mac OS X (10.8.2)
>            Reporter: Mirko Friedenhagen
>            Assignee: Olivier Lamy
>            Priority: Blocker
>             Fix For: 3.0.1
>
>         Attachments: MPMD-163-against-tag-3.0.patch, my-app.zip
>
>
> After updating maven-pmd-plugin from 2.7.1 to 3.0, in some of our projects the number of pmd violations exploded. Some are valid (new rules), however I have a project where the same violation will show up more than 70 times!
> See below for an example of this dramatic outcome:
> {code}
> [mifr@host SomeService]$ grep '^<violation' target/pmd.xml | wc
>     3682   44655 1239557
> [mifr@host SomeService]$ grep '^<violation' target/pmd.xml | sort | uniq | wc
>       92    1120   30832
> {code}
> The number of source files in this project in total is 96, so a wild guess would be, that the plugin readds already existing violations (the first (unique) violation occurs once, the second 4 times and so on). I will try t take a look at the source code or to get a working testcase.

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