Plugin uses wrong path for per-file pep8 xml-reports

Working on Windows
Launching pep8 check, it successfully creates XML report, but violations plugin roports error. It seems it uses absolute path somewhere instaed of relative. Please, at least help me to find a direction to look (i downloada the plugin src and trying to find to fix it):

generated xml file: C:\Jenkins\jobs\python-template-2\workspace\reports\pep8.xml
=============== 91 failed, 33 skipped, 1 error in 1.52 seconds ================

C:\Jenkins\jobs\python-template-2\workspace>exit 1
Build step 'Выполнить команду Windows' marked build as failure
ERROR: Publisher hudson.plugins.violations.ViolationsPublisher aborted due to exception
java.io.FileNotFoundException: C:\Jenkins\jobs\python-template-2\builds\2013-10-23_20-03-27\violations\file\C:\Jenkins\jobs\python-template-2\workspace\utilities\capable\admin.py.xml (Syntax error in filename or path)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.(Unknown Source)
at java.io.FileOutputStream.(Unknown Source)
at hudson.FilePath.write(FilePath.java:1642)
at hudson.plugins.violations.generate.ExecuteFilePath.execute(ExecuteFilePath.java:42)
at hudson.plugins.violations.generate.GenerateXML.execute(GenerateXML.java:47)
at hudson.plugins.violations.ViolationsCollector.invoke(ViolationsCollector.java:122)
at hudson.plugins.violations.ViolationsCollector.invoke(ViolationsCollector.java:25)
at hudson.FilePath.act(FilePath.java:912)
at hudson.FilePath.act(FilePath.java:885)
at hudson.plugins.violations.ViolationsPublisher.perform(ViolationsPublisher.java:74)
at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:45)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:781)
at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:753)
at hudson.model.Build$BuildExecution.post2(Build.java:183)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:706)
at hudson.model.Run.execute(Run.java:1690)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:230)
Finished: FAILURE