I get following Exception after a successfull build.

This seems to occure since i changed the SVN Plugin from polling to push via a post-commit script. It looks like it's doing something with the ChangeLogs. The Changes are displayed correctly, but don't know if the internal repesentation has chaned thru the push strategy.

Any other Ideas for a workaround? ( Beside deactivation )
LOG:
[...]
Sending email for trigger: Still Unstable
ERROR: Could not send email as a part of the post-build publishers.
java.lang.NullPointerException
at java.lang.String.startsWith(String.java:1433)
at java.lang.String.startsWith(String.java:1462)
at hudson.maven.MavenModuleSetBuild$1.isDescendantOf(MavenModuleSetBuild.java:178)
at hudson.maven.MavenModuleSetBuild$1.<init>(MavenModuleSetBuild.java:147)
at hudson.maven.MavenModuleSetBuild.getChangeSetFor(MavenModuleSetBuild.java:141)
at hudson.maven.FilteredChangeLogSet.<init>(FilteredChangeLogSet.java:51)
at hudson.maven.MavenBuild.getChangeSet(MavenBuild.java:161)
at hudson.model.AbstractBuild.hasParticipant(AbstractBuild.java:315)
at hudson.model.AbstractProject.hasParticipant(AbstractProject.java:1232)
at hudson.model.User.getProjects(User.java:381)
at hudson.scm.MailAddressResolverImpl.findMailAddressFor(MailAddressResolverImpl.java:19)
at hudson.tasks.MailAddressResolver.resolve(MailAddressResolver.java:97)
at hudson.tasks.Mailer$UserProperty.getAddress(Mailer.java:496)
at hudson.plugins.emailext.ExtendedEmailPublisher.createMail(ExtendedEmailPublisher.java:278)
at hudson.plugins.emailext.ExtendedEmailPublisher.sendMail(ExtendedEmailPublisher.java:212)
at hudson.plugins.emailext.ExtendedEmailPublisher._perform(ExtendedEmailPublisher.java:204)
at hudson.plugins.emailext.ExtendedEmailPublisher.perform(ExtendedEmailPublisher.java:165)
at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:36)
at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:601)
at hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:580)
at hudson.maven.MavenModuleSetBuild$RunnerImpl.cleanUp(MavenModuleSetBuild.java:625)
at hudson.model.Run.run(Run.java:1322)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:293)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:140)