When a pre 2.14 gerrit-trigger.xml configuration is loaded, the gerrit-trigger plugin fails to load due to a null pointer exception.

INFO: Starting Gerrit-Trigger Plugin
May 26, 2015 1:10:27 PM jenkins.InitReactorRunner$1 onTaskFailed
SEVERE: Failed Loading plugin gerrit-trigger
java.io.IOException: Failed to initialize
at hudson.ClassicPluginStrategy.load(ClassicPluginStrategy.java:394)
at hudson.PluginManager$2$1$1.run(PluginManager.java:357)
at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169)
at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282)
at jenkins.model.Jenkins$7.runTask(Jenkins.java:905)
at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210)
at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: Unable to read /home/escoheb/jenkins_home_gt/gerrit-trigger.xml
at hudson.XmlFile.unmarshal(XmlFile.java:165)
at hudson.Plugin.load(Plugin.java:241)
at com.sonyericsson.hudson.plugins.gerrit.trigger.PluginImpl.load(PluginImpl.java:494)
at com.sonyericsson.hudson.plugins.gerrit.trigger.PluginImpl.start(PluginImpl.java:475)
at hudson.ClassicPluginStrategy.startPlugin(ClassicPluginStrategy.java:402)
at hudson.ClassicPluginStrategy.load(ClassicPluginStrategy.java:391)
... 9 more
Caused by: com.thoughtworks.xstream.converters.ConversionException: null : null
---- Debugging information ----
cause-exception : java.lang.NullPointerException
cause-message : null
class : com.sonyericsson.hudson.plugins.gerrit.trigger.PluginImpl
required-type : com.sonyericsson.hudson.plugins.gerrit.trigger.PluginImpl
converter-type : hudson.util.RobustReflectionConverter
path : /com.sonyericsson.hudson.plugins.gerrit.trigger.PluginImpl
line number : 169
version : not available
-------------------------------
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:79)
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:50)
at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:134)
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:32)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1189)
at hudson.util.XStream2.unmarshal(XStream2.java:113)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1173)
at hudson.XmlFile.unmarshal(XmlFile.java:163)
... 14 more
Caused by: java.lang.NullPointerException
at hudson.diagnosis.OldDataMonitor.report(OldDataMonitor.java:203)
at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:327)
at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:228)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:72)
... 23 more