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https://jira.codehaus.org/browse/MPMD-163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=319973#comment-319973
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Reijo Tomperi edited comment on MPMD-163 at 2/19/13 6:10 AM:
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I see this problem also. You can see the duplicates if you create a project
with two files in the same package A.java and B.java. If there is a violation
in B.java, then it is reported twice. If the violation is in A.java, it gets
reported only once. If you have A, B and C. Then violations in C are reported 3
times etc. Also files in other folders can affect this (but that gets more
complicated to follow). I tested this with this file:
import java.util.ArrayList;
public class Foo
{
public Foo(final ArrayList<String> foo)
{
}
}
Also note that I don't see this problem when using standalone PMD, so this
seems to be issue in the PMD plugin itself. I'm using Apache Maven 2.2.1.
was (Author: dvice):
I see this problem also. You can see the duplicates if you create a project
with two files in the same package A.java and B.java. If there is a violation
in B.java, then it is reported twice. If the violation is in A.java, it gets
reported only once. If you have A, B and C. Then violations in C are reported 3
times etc. Also files in other folders can affect this (but that gets more
complicated to follow). I tested this with this file:
import java.util.ArrayList;
public class Foo
{
public Foo(final ArrayList<String> foo)
{
}
}
Also note that I don't see this problem when using standalone PMD, so this
seems to be issue in the PMD plugin itself.
> 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
> Priority: Blocker
>
> 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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