After updating jenkins the notification of jenkins vi Subversion post commit hook has become broken.

The syslog shows:

Jan 31 16:37:16 garfield jenkins: SEVERE: Failed to record SCM polling for hudson.maven.MavenModuleSet@a2ce5c5[bvopmenu-common]
Jan 31 16:37:16 garfield jenkins: java.lang.NullPointerException
Jan 31 16:37:16 garfield jenkins: #011at java.util.TreeMap.putAll(TreeMap.java:308)
Jan 31 16:37:16 garfield jenkins: #011at org.jenkinsci.plugins.envinject.EnvInjectVarList.<init>(EnvInjectVarList.java:25)
Jan 31 16:37:16 garfield jenkins: #011at org.jenkinsci.plugins.envinject.EnvInjectPluginAction.getTarget(EnvInjectPluginAction.java:20)
Jan 31 16:37:16 garfield jenkins: #011at org.jenkinsci.plugins.envinject.EnvInjectPluginAction.buildEnvVars(EnvInjectPluginAction.java:24)
Jan 31 16:37:16 garfield jenkins: #011at hudson.model.AbstractBuild.getEnvironment(AbstractBuild.java:948)
Jan 31 16:37:16 garfield jenkins: #011at hudson.maven.AbstractMavenBuild.getEnvironment(AbstractMavenBuild.java:59)
Jan 31 16:37:16 garfield jenkins: #011at hudson.maven.MavenModuleSetBuild.getEnvironment(MavenModuleSetBuild.java:154)
Jan 31 16:37:16 garfield jenkins: #011at hudson.scm.SubversionSCM.compareRemoteRevisionWith(SubversionSCM.java:1230)
Jan 31 16:37:16 garfield jenkins: #011at hudson.scm.SCM._compareRemoteRevisionWith(SCM.java:356)
Jan 31 16:37:16 garfield jenkins: #011at hudson.scm.SCM.poll(SCM.java:373)
Jan 31 16:37:16 garfield jenkins: #011at hudson.model.AbstractProject._poll(AbstractProject.java:1493)
Jan 31 16:37:16 garfield jenkins: #011at hudson.model.AbstractProject.poll(AbstractProject.java:1410)
Jan 31 16:37:16 garfield jenkins: #011at hudson.triggers.SCMTrigger$Runner.runPolling(SCMTrigger.java:439)
Jan 31 16:37:16 garfield jenkins: #011at hudson.triggers.SCMTrigger$Runner.run(SCMTrigger.java:468)
Jan 31 16:37:16 garfield jenkins: #011at hudson.util.SequentialExecutionQueue$QueueEntry.run(SequentialExecutionQueue.java:118)
Jan 31 16:37:16 garfield jenkins: #011at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
Jan 31 16:37:16 garfield jenkins: #011at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
Jan 31 16:37:16 garfield jenkins: #011at java.util.concurrent.FutureTask.run(FutureTask.java:166)
Jan 31 16:37:16 garfield jenkins: #011at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
Jan 31 16:37:16 garfield jenkins: #011at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
Jan 31 16:37:16 garfield jenkins: #011at java.lang.Thread.run(Thread.java:722)