I'm seeing the following exception thrown at startup...

Oct 21, 2010 9:37:00 AM hudson.triggers.SafeTimerTask run
SEVERE: Timer task hudson.WebAppMain$2$1@109037d failed
java.lang.NullPointerException
at java.lang.String.startsWith(String.java:1421)
at java.lang.String.startsWith(String.java:1450)
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.User.getBuilds(User.java:369)
at hudson.WebAppMain$2$1.doRun(WebAppMain.java:227)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)

I believe the problem began showing up in version 1.378.

I am currently using:
Hudson - 1.381
Static Analysis Collector Plug-in - 1.8
Static Analysis Utilities - 1.14
Hudson Backup plugin - 1.5
Checkstyle Plug-in - 3.10
Hudson CVS Plug-in - 1.2
Hudson Dependency Analyzer Plugin - 0.5
Hudson Email Extension Plugin - 2.9
FindBugs Plug-in - 4.14
Hudson Maven Release Plug-in Plug-in - 0.6.1
Hudson Maven Info Plugin - 0.0.3
Maven Integration plugin - 1.381
PMD Plug-in - 3.10
Hudson Support Subscription Notification Plugin - 1.2
Hudson SSH Slaves plugin - 0.13
Hudson Subversion Plug-in - 1.17
Warnings Plug-in - 3.11

I'm not sure whether this is causing any real problems, but after I first saw it I was having problems with build hanging, and I was forced to revert to an earlier version of Hudson. If this exception isn't important, I'd like to see it cleaned up. If it is indicative of a larger problems, can we get a fix?