Get following error message with Cobertura-1.7 version. Downgrade to 1.5 works fine.

Publishing Cobertura coverage report...
FATAL: Unable to find coverage results
hudson.util.IOException2: remote file operation failed: /home/jenkins/squeeze-amd64/workspace/trogdor/arch/amd64/dist/Debian-6.0 at hudson.remoting.Channel@2c3525fc:seblddev-debian-squeeze-amd64
at hudson.FilePath.act(FilePath.java:835)
at hudson.FilePath.act(FilePath.java:821)
at hudson.plugins.cobertura.CoberturaPublisher.perform(CoberturaPublisher.java:335)
at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:36)
at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:710)
at hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:685)
at hudson.model.Build$RunnerImpl.post2(Build.java:162)
at hudson.model.AbstractBuild$AbstractRunner.post(AbstractBuild.java:632)
at hudson.model.Run.run(Run.java:1463)
at hudson.matrix.MatrixRun.run(MatrixRun.java:146)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:239)
Caused by: java.io.IOException: Unable to serialize hudson.FilePath$FileCallableWrapper@7dc8e850
at hudson.remoting.UserRequest.serialize(UserRequest.java:166)
at hudson.remoting.UserRequest.<init>(UserRequest.java:62)
at hudson.remoting.Channel.call(Channel.java:662)
at hudson.FilePath.act(FilePath.java:828)
... 11 more
Caused by: java.io.NotSerializableException: hudson.plugins.cobertura.CoberturaPublisher
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1180)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346)
at hudson.remoting.UserRequest._serialize(UserRequest.java:155)
at hudson.remoting.UserRequest.serialize(UserRequest.java:164)
... 14 more