I think this might have something to do with how I have configured my poms for
<ciManagement>. I have several levels in the child pom hiearchy and Only
specify the ci system in the top level and then change the notifiers in the
children. If I put them into a single project it works. For example, let's
assume the following strutcture:

top
child1
child2
grandchild21

In top's pom.xml, I configure the following:

<ciManagement>
<system>hudson</system>
<url>http://myHudsonBox/hudson</url>
</ciManagement>

In child1 and child2, I have the following:

<ciManagement>
<notifiers>
<notifier>
<type>mail</type>
<sendOnError>true</sendOnError>
<sendOnFailure>true</sendOnFailure>
<sendOnWarning>true</sendOnWarning>
<sendOnSuccess>true</sendOnSuccess>
<configuration>
<address>jason_chaffee@tvworks.com</address>
</configuration>
</notifier>
</notifiers>
</ciManagement>

I get the following error:

Parsing POMs
ERROR: Processing failed due to a bug in the code. Please report thus to
users@hudson.dev.java.net
java.lang.NullPointerException
at hudson.maven.PomInfo.<init>(PomInfo.java:93)
at
hudson.maven.MavenModuleSetBuild$PomParser.toPomInfo(MavenModuleSetBuild.java:311)
at
hudson.maven.MavenModuleSetBuild$PomParser.invoke(MavenModuleSetBuild.java:295)
at
hudson.maven.MavenModuleSetBuild$PomParser.invoke(MavenModuleSetBuild.java:258)
at hudson.FilePath.act(FilePath.java:239)
at
hudson.maven.MavenModuleSetBuild$RunnerImpl.doRun(MavenModuleSetBuild.java:193)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:121)
at hudson.model.Run.run(Run.java:559)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:132)
at hudson.model.Executor.run(Executor.java:59)
FATAL: null
java.lang.NullPointerException
at hudson.maven.PomInfo.<init>(PomInfo.java:93)
at
hudson.maven.MavenModuleSetBuild$PomParser.toPomInfo(MavenModuleSetBuild.java:311)
at
hudson.maven.MavenModuleSetBuild$PomParser.invoke(MavenModuleSetBuild.java:295)
at
hudson.maven.MavenModuleSetBuild$PomParser.invoke(MavenModuleSetBuild.java:258)
at hudson.FilePath.act(FilePath.java:239)
at
hudson.maven.MavenModuleSetBuild$RunnerImpl.doRun(MavenModuleSetBuild.java:193)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:121)
at hudson.model.Run.run(Run.java:559)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:132)
at hudson.model.Executor.run(Executor.java:59)