when PMD plugin try's to read the pmd outputfile, it throws an io exception:
[DRY] Collecting duplicate code analysis files...
[DRY] Parsing of file /var/lib/hudson/jobs/Kidscalcula/workspace/KidsCalcula/pmd_report.xml failed due to an exception:

java.io.IOException: No parser found for duplicated code results file /var/lib/hudson/jobs/Kidscalcula/workspace/KidsCalcula/pmd_report.xml
at hudson.plugins.dry.parser.DuplicationParserRegistry.parse(DuplicationParserRegistry.java:44)
at hudson.plugins.analysis.core.FilesParser.parseFile(FilesParser.java:152)
at hudson.plugins.analysis.core.FilesParser.parseFiles(FilesParser.java:131)
at hudson.plugins.analysis.core.FilesParser.invoke(FilesParser.java:87)
at hudson.plugins.analysis.core.FilesParser.invoke(FilesParser.java:28)
at hudson.FilePath.act(FilePath.java:747)
at hudson.FilePath.act(FilePath.java:729)
at hudson.plugins.dry.DryPublisher.perform(DryPublisher.java:100)
at hudson.plugins.analysis.core.HealthAwarePublisher.perform(HealthAwarePublisher.java:155)
at hudson.tasks.BuildStepMonitor$2.perform(BuildStepMonitor.java:27)
at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:582)
at hudson.model.AbstractBuild$AbstractRunner.performAllBuildStep(AbstractBuild.java:563)
at hudson.model.AbstractBuild$AbstractRunner.performAllBuildStep(AbstractBuild.java:550)
at hudson.model.Build$RunnerImpl.post2(Build.java:152)
at hudson.model.AbstractBuild$AbstractRunner.post(AbstractBuild.java:528)
at hudson.model.Run.run(Run.java:1266)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:122)