See the following log data:

Dec 4, 2012 10:21:32 AM hudson.triggers.SCMTrigger$Runner runPolling
SEVERE: Failed to record SCM polling for hudson.model.FreeStyleProject@47fc71[NGMP.Direct-DriversLIB.RealTimeEnumerator]
java.lang.NullPointerException
at hudson.scm.IntegritySCM.compareRemoteRevisionWith(IntegritySCM.java:818)
at hudson.scm.SCM._compareRemoteRevisionWith(SCM.java:356)
at hudson.scm.SCM.poll(SCM.java:373)
at hudson.model.AbstractProject._poll(AbstractProject.java:1415)
at hudson.model.AbstractProject.poll(AbstractProject.java:1335)
at hudson.triggers.SCMTrigger$Runner.runPolling(SCMTrigger.java:420)
at hudson.triggers.SCMTrigger$Runner.run(SCMTrigger.java:449)
at hudson.util.SequentialExecutionQueue$QueueEntry.run(SequentialExecutionQueue.java:118)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Dec 4, 2012 10:19:53 AM hudson.plugins.logparser.LogParserParser parseLogBody
INFO: LogParserParser: Parsing took 0 minutes (0) seconds.

Dec 4, 2012 10:19:53 AM hudson.plugins.logparser.LogParserThread getLineStatuses
INFO: LogParserThread: Done parsing log part 0

Dec 4, 2012 10:19:53 AM hudson.plugins.logparser.LogParserThread getLineStatuses
INFO: LogParserThread: Start parsing log part 0

Dec 4, 2012 10:19:53 AM hudson.plugins.logparser.LogParserReader readLogPart
INFO: Done reading log part 0

Dec 4, 2012 10:19:53 AM hudson.plugins.logparser.LogParserReader readLogPart
INFO: Start reading log part 0 in thread #0

Dec 4, 2012 10:19:53 AM hudson.plugins.logparser.LogParserStatusComputer computeStatusMatches
INFO: Local temp file:C:\Windows\TEMP\log-parser_NGMP.Direct-Library.Fixture4140Flat_build_166

Dec 4, 2012 10:19:53 AM hudson.plugins.logparser.LogParserParser parseLogBody
INFO: LogParserParser: Start parsing : NGMP.Direct-Library.Fixture4140Flat_build_166

Dec 4, 2012 10:19:53 AM hudson.model.Run execute
INFO: NGMP.Direct-Library.Fixture4140Flat #166 main build action completed: SUCCESS

Dec 4, 2012 9:21:32 AM hudson.triggers.SCMTrigger$Runner runPolling
SEVERE: Failed to record SCM polling for hudson.model.FreeStyleProject@47fc71[NGMP.Direct-DriversLIB.RealTimeEnumerator]
java.lang.NullPointerException
at hudson.scm.IntegritySCM.compareRemoteRevisionWith(IntegritySCM.java:818)
at hudson.scm.SCM._compareRemoteRevisionWith(SCM.java:356)
at hudson.scm.SCM.poll(SCM.java:373)
at hudson.model.AbstractProject._poll(AbstractProject.java:1415)
at hudson.model.AbstractProject.poll(AbstractProject.java:1335)
at hudson.triggers.SCMTrigger$Runner.runPolling(SCMTrigger.java:420)
at hudson.triggers.SCMTrigger$Runner.run(SCMTrigger.java:449)
at hudson.util.SequentialExecutionQueue$QueueEntry.run(SequentialExecutionQueue.java:118)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Dec 4, 2012 8:21:32 AM hudson.triggers.SCMTrigger$Runner runPolling
SEVERE: Failed to record SCM polling for hudson.model.FreeStyleProject@47fc71[NGMP.Direct-DriversLIB.RealTimeEnumerator]
java.lang.NullPointerException
at hudson.scm.IntegritySCM.compareRemoteRevisionWith(IntegritySCM.java:818)
at hudson.scm.SCM._compareRemoteRevisionWith(SCM.java:356)
at hudson.scm.SCM.poll(SCM.java:373)
at hudson.model.AbstractProject._poll(AbstractProject.java:1415)
at hudson.model.AbstractProject.poll(AbstractProject.java:1335)
at hudson.triggers.SCMTrigger$Runner.runPolling(SCMTrigger.java:420)
at hudson.triggers.SCMTrigger$Runner.run(SCMTrigger.java:449)
at hudson.util.SequentialExecutionQueue$QueueEntry.run(SequentialExecutionQueue.java:118)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Dec 4, 2012 7:21:33 AM hudson.triggers.SCMTrigger$Runner runPolling
SEVERE: Failed to record SCM polling for hudson.model.FreeStyleProject@47fc71[NGMP.Direct-DriversLIB.RealTimeEnumerator]
java.lang.NullPointerException
at hudson.scm.IntegritySCM.compareRemoteRevisionWith(IntegritySCM.java:818)
at hudson.scm.SCM._compareRemoteRevisionWith(SCM.java:356)
at hudson.scm.SCM.poll(SCM.java:373)
at hudson.model.AbstractProject._poll(AbstractProject.java:1415)
at hudson.model.AbstractProject.poll(AbstractProject.java:1335)
at hudson.triggers.SCMTrigger$Runner.runPolling(SCMTrigger.java:420)
at hudson.triggers.SCMTrigger$Runner.run(SCMTrigger.java:449)
at hudson.util.SequentialExecutionQueue$QueueEntry.run(SequentialExecutionQueue.java:118)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Dec 4, 2012 6:21:33 AM hudson.triggers.SCMTrigger$Runner runPolling
SEVERE: Failed to record SCM polling for hudson.model.FreeStyleProject@47fc71[NGMP.Direct-DriversLIB.RealTimeEnumerator]
java.lang.NullPointerException
at hudson.scm.IntegritySCM.compareRemoteRevisionWith(IntegritySCM.java:818)
at hudson.scm.SCM._compareRemoteRevisionWith(SCM.java:356)
at hudson.scm.SCM.poll(SCM.java:373)
at hudson.model.AbstractProject._poll(AbstractProject.java:1415)
at hudson.model.AbstractProject.poll(AbstractProject.java:1335)
at hudson.triggers.SCMTrigger$Runner.runPolling(SCMTrigger.java:420)
at hudson.triggers.SCMTrigger$Runner.run(SCMTrigger.java:449)
at hudson.util.SequentialExecutionQueue$QueueEntry.run(SequentialExecutionQueue.java:118)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Dec 4, 2012 5:21:32 AM hudson.triggers.SCMTrigger$Runner runPolling
SEVERE: Failed to record SCM polling for hudson.model.FreeStyleProject@47fc71[NGMP.Direct-DriversLIB.RealTimeEnumerator]
java.lang.NullPointerException
at hudson.scm.IntegritySCM.compareRemoteRevisionWith(IntegritySCM.java:818)
at hudson.scm.SCM._compareRemoteRevisionWith(SCM.java:356)
at hudson.scm.SCM.poll(SCM.java:373)
at hudson.model.AbstractProject._poll(AbstractProject.java:1415)
at hudson.model.AbstractProject.poll(AbstractProject.java:1335)
at hudson.triggers.SCMTrigger$Runner.runPolling(SCMTrigger.java:420)
at hudson.triggers.SCMTrigger$Runner.run(SCMTrigger.java:449)
at hudson.util.SequentialExecutionQueue$QueueEntry.run(SequentialExecutionQueue.java:118)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Dec 4, 2012 4:33:52 AM hudson.model.AsyncPeriodicWork$1 run
INFO: Finished Project disk usage. 12737 ms

Dec 4, 2012 4:33:39 AM hudson.model.AsyncPeriodicWork$1 run
INFO: Started Project disk usage

Dec 4, 2012 4:21:32 AM hudson.triggers.SCMTrigger$Runner runPolling