We are running a Puppet-Lint run on Cloudbees Jenkins and processing the output with the Warnings Parser Plugin. Puppet-Lint seems to run ok, but sometimes crashes with the following NPE:

[WARNINGS] Parsing warnings in console log with parser Puppet-Lint
ERROR: Publisher hudson.plugins.warnings.WarningsPublisher aborted due to exception
java.lang.NullPointerException
at hudson.remoting.MultiClassLoaderSerializer$Input.readClassLoader(MultiClassLoaderSerializer.java:95)
at hudson.remoting.MultiClassLoaderSerializer$Input.resolveClass(MultiClassLoaderSerializer.java:112)
at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)
at java.io.ObjectInputStream.readClassDesc(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at java.util.HashSet.readObject(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)