Jobs get stuck in the queue even if we have plenty of executors available.
Jobs are supposed to go straight to the master node which i have set to "utilize this node as much as possible" but still no luck.

This is what I see in the logs:

Dec 16, 2014 10:05:15 AM INFO org.eclipse.jetty.util.log.JavaUtilLog info

Started SelectChannelConnector@0.0.0.0:8080

Dec 16, 2014 10:05:15 AM INFO org.eclipse.jetty.util.log.JavaUtilLog info

Started Ajp13SocketConnector@0.0.0.0:8009

Dec 16, 2014 10:05:15 AM INFO org.eclipse.jetty.util.log.JavaUtilLog info

AJP13 is not a secure protocol. Please protect port 8009

Dec 16, 2014 10:05:15 AM INFO winstone.Logger logInternal

Winstone Servlet Engine v2.0 running: controlPort=disabled

Dec 16, 2014 10:05:15 AM INFO jenkins.InitReactorRunner$1 onAttained

Started initialization

Dec 16, 2014 10:05:16 AM INFO hudson.ClassicPluginStrategy createPluginWrapper

Plugin build-pipeline-plugin.jpi is disabled

Dec 16, 2014 10:05:16 AM INFO hudson.PluginManager$1$3$1 isDuplicate

Ignoring /var/lib/jenkins/plugins/build-name-setter.hpi because /var/lib/jenkins/plugins/build-name-setter.jpi is already loaded

Dec 16, 2014 10:05:16 AM INFO hudson.PluginManager$1$3$1 isDuplicate

Ignoring /var/lib/jenkins/plugins/rtc.hpi because /var/lib/jenkins/plugins/rtc.jpi is already loaded

Dec 16, 2014 10:05:16 AM INFO hudson.PluginManager$1$3$1 isDuplicate

Ignoring /var/lib/jenkins/plugins/copy-to-slave.hpi because /var/lib/jenkins/plugins/copy-to-slave.jpi is already loaded

Dec 16, 2014 10:05:16 AM INFO jenkins.InitReactorRunner$1 onAttained

Listed all plugins

Dec 16, 2014 10:05:16 AM INFO hudson.plugins.greenballs.PluginImpl start

Green Balls!

Dec 16, 2014 10:05:16 AM INFO jenkins.InitReactorRunner$1 onAttained

Prepared all plugins

Dec 16, 2014 10:05:18 AM INFO jenkins.InitReactorRunner$1 onAttained

Started all plugins

Dec 16, 2014 10:05:18 AM INFO jenkins.InitReactorRunner$1 onAttained

Augmented all extensions

Dec 16, 2014 10:05:19 AM INFO jenkins.InitReactorRunner$1 onAttained

Loaded all jobs

Dec 16, 2014 10:05:20 AM INFO org.jenkinsci.main.modules.sshd.SSHD start

Started SSHD at port 60003

Dec 16, 2014 10:05:20 AM INFO jenkins.InitReactorRunner$1 onAttained

Completed initialization

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave1

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave2

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave3

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave4

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave5

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave6

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave7

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave8

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave9

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave10

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave11

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave12

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave13

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave14

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave15

Dec 16, 2014 10:05:20 AM INFO hudson.slaves.SlaveComputer tryReconnect

Attempting to reconnect AutoSlave16

Dec 16, 2014 10:05:20 AM INFO hudson.WebAppMain$3 run

Jenkins is fully up and running

Dec 16, 2014 10:06:30 AM INFO hudson.model.Run execute

GenerateRegrReports #153 main build action completed: SUCCESS

Dec 16, 2014 10:06:31 AM WARNING jenkins.model.lazy.LazyBuildMixIn removeRun

hudson.model.FreeStyleProject@3bd53bd5[GenerateRegrReports] did not contain GenerateRegrReports #151 to begin with

Dec 16, 2014 10:06:31 AM INFO com.michelin.cio.hudson.plugins.maskpasswords.MaskPasswordsConfig$1

No createValue(String) method for class com.michelin.cio.hudson.plugins.passwordparam.PasswordParameterDefinition

Dec 16, 2014 10:06:31 AM INFO hudson.model.Run execute

GetDefectReport #449 main build action completed: FAILURE

Dec 16, 2014 10:06:31 AM WARNING jenkins.model.lazy.LazyBuildMixIn removeRun

hudson.model.FreeStyleProject@19941994[GetDefectReport] did not contain GetDefectReport #448 to begin with

Dec 16, 2014 10:06:44 AM INFO hudson.model.Run execute

GenerateRegrReports #154 main build action completed: SUCCESS

Dec 16, 2014 10:06:44 AM WARNING jenkins.model.lazy.LazyBuildMixIn removeRun

hudson.model.FreeStyleProject@3bd53bd5[GenerateRegrReports] did not contain GenerateRegrReports #152 to begin with

Dec 16, 2014 10:06:46 AM INFO hudson.model.Run execute

GetDefectReport #450 main build action completed: FAILURE

Dec 16, 2014 10:06:46 AM WARNING jenkins.model.lazy.LazyBuildMixIn removeRun

hudson.model.FreeStyleProject@19941994[GetDefectReport] did not contain GetDefectReport #449 to begin with

Dec 16, 2014 10:07:04 AM INFO hudson.model.UpdateSite updateData

Obtained the latest update center data file for UpdateSource default

Dec 16, 2014 10:07:15 AM INFO hudson.model.Run execute

GenerateRegrReports #155 main build action completed: SUCCESS

Dec 16, 2014 10:07:15 AM WARNING jenkins.model.lazy.LazyBuildMixIn removeRun

hudson.model.FreeStyleProject@3bd53bd5[GenerateRegrReports] did not contain GenerateRegrReports #153 to begin with

Dec 16, 2014 10:08:03 AM INFO hudson.model.Run execute

GetPyauto #993 main build action completed: SUCCESS

Dec 16, 2014 10:08:03 AM WARNING jenkins.model.lazy.LazyBuildMixIn removeRun

hudson.model.FreeStyleProject@11e211e2[GetPyauto] did not contain GetPyauto #988 to begin with

Dec 16, 2014 10:08:25 AM WARNING hudson.ExtensionFinder$GuiceFinder$FaultTolerantScope$1 error

Failed to instantiate optional component se.diabol.jenkins.pipeline.resolver.PromotedBuildRelationshipResolver; skipping

Dec 16, 2014 10:08:27 AM WARNING hudson.ExtensionFinder$GuiceFinder$FaultTolerantScope$1 error

Failed to instantiate optional component se.diabol.jenkins.pipeline.trigger.BPPManualTriggerResolver; skipping

Dec 16, 2014 10:08:35 AM INFO hudson.model.Run execute

Listen_Intel_Rack34 #9 main build action completed: SUCCESS

Dec 16, 2014 10:08:35 AM WARNING jenkins.model.lazy.LazyBuildMixIn removeRun

hudson.model.FreeStyleProject@4c424c42[Listen_Intel_Rack34] did not contain Listen_Intel_Rack34 #6 to begin with

Dec 16, 2014 10:08:45 AM SEVERE hudson.triggers.SafeTimerTask run

Timer task hudson.model.Queue$MaintainTask@1b191b19 failed
java.lang.IncompatibleClassChangeError
at java.util.ArrayList.addAll(ArrayList.java:243)
at hudson.util.CopyOnWriteList.addAll(CopyOnWriteList.java:75)
at hudson.util.PersistedList.addAll(PersistedList.java:78)
at jenkins.model.Jenkins.getACL(Jenkins.java:2272)
at hudson.model.Node.canTake(Node.java:364)
at hudson.model.Queue$JobOffer.canTake(Queue.java:278)
at hudson.model.Queue.maintain(Queue.java:1141)
at hudson.model.Queue$MaintainTask.doRun(Queue.java:2166)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:453)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:329)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:162)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:110)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:193)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:217)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:898)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:920)
at java.lang.Thread.run(Thread.java:736)

Dec 16, 2014 10:08:50 AM SEVERE hudson.triggers.SafeTimerTask run

Timer task hudson.model.Queue$MaintainTask@1b191b19 failed
java.lang.IncompatibleClassChangeError
at java.util.ArrayList.addAll(ArrayList.java:243)
at hudson.util.CopyOnWriteList.addAll(CopyOnWriteList.java:75)
at hudson.util.PersistedList.addAll(PersistedList.java:78)
at jenkins.model.Jenkins.getACL(Jenkins.java:2272)
at hudson.model.Node.canTake(Node.java:364)
at hudson.model.Queue$JobOffer.canTake(Queue.java:278)
at hudson.model.Queue.maintain(Queue.java:1141)
at hudson.model.Queue$MaintainTask.doRun(Queue.java:2166)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:453)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:329)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:162)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:110)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:193)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:217)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:898)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:920)
at java.lang.Thread.run(Thread.java:736)

Dec 16, 2014 10:08:55 AM SEVERE hudson.triggers.SafeTimerTask run

Timer task hudson.model.Queue$MaintainTask@1b191b19 failed
java.lang.IncompatibleClassChangeError
at java.util.ArrayList.addAll(ArrayList.java:243)
at hudson.util.CopyOnWriteList.addAll(CopyOnWriteList.java:75)
at hudson.util.PersistedList.addAll(PersistedList.java:78)
at jenkins.model.Jenkins.getACL(Jenkins.java:2272)
at hudson.model.Node.canTake(Node.java:364)
at hudson.model.Queue$JobOffer.canTake(Queue.java:278)
at hudson.model.Queue.maintain(Queue.java:1141)
at hudson.model.Queue$MaintainTask.doRun(Queue.java:2166)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:453)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:329)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:162)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:110)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:193)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:217)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:898)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:920)
at java.lang.Thread.run(Thread.java:736)

Dec 16, 2014 10:09:00 AM SEVERE hudson.triggers.SafeTimerTask run

Timer task hudson.model.Queue$MaintainTask@1b191b19 failed
java.lang.IncompatibleClassChangeError
at java.util.ArrayList.addAll(ArrayList.java:243)
at hudson.util.CopyOnWriteList.addAll(CopyOnWriteList.java:75)
at hudson.util.PersistedList.addAll(PersistedList.java:78)
at jenkins.model.Jenkins.getACL(Jenkins.java:2272)
at hudson.model.Node.canTake(Node.java:364)
at hudson.model.Queue$JobOffer.canTake(Queue.java:278)
at hudson.model.Queue.maintain(Queue.java:1141)
at hudson.model.Queue$MaintainTask.doRun(Queue.java:2166)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:453)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:329)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:162)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:110)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:193)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:217)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:898)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:920)
at java.lang.Thread.run(Thread.java:736)

Dec 16, 2014 10:09:05 AM SEVERE hudson.triggers.SafeTimerTask run

Timer task hudson.model.Queue$MaintainTask@1b191b19 failed
java.lang.IncompatibleClassChangeError
at java.util.ArrayList.addAll(ArrayList.java:243)
at hudson.util.CopyOnWriteList.addAll(CopyOnWriteList.java:75)
at hudson.util.PersistedList.addAll(PersistedList.java:78)
at jenkins.model.Jenkins.getACL(Jenkins.java:2272)
at hudson.model.Node.canTake(Node.java:364)
at hudson.model.Queue$JobOffer.canTake(Queue.java:278)
at hudson.model.Queue.maintain(Queue.java:1141)
at hudson.model.Queue$MaintainTask.doRun(Queue.java:2166)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:453)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:329)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:162)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:110)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:193)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:217)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:898)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:920)
at java.lang.Thread.run(Thread.java:736)

Dec 16, 2014 10:09:10 AM SEVERE hudson.triggers.SafeTimerTask run

Timer task hudson.model.Queue$MaintainTask@1b191b19 failed
java.lang.IncompatibleClassChangeError
at java.util.ArrayList.addAll(ArrayList.java:243)
at hudson.util.CopyOnWriteList.addAll(CopyOnWriteList.java:75)
at hudson.util.PersistedList.addAll(PersistedList.java:78)
at jenkins.model.Jenkins.getACL(Jenkins.java:2272)
at hudson.model.Node.canTake(Node.java:364)
at hudson.model.Queue$JobOffer.canTake(Queue.java:278)
at hudson.model.Queue.maintain(Queue.java:1141)
at hudson.model.Queue$MaintainTask.doRun(Queue.java:2166)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:453)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:329)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:162)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:110)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:193)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:217)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:898)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:920)
at java.lang.Thread.run(Thread.java:736)

Dec 16, 2014 10:09:15 AM SEVERE hudson.triggers.SafeTimerTask run

Timer task hudson.model.Queue$MaintainTask@1b191b19 failed
java.lang.IncompatibleClassChangeError
at java.util.ArrayList.addAll(ArrayList.java:243)
at hudson.util.CopyOnWriteList.addAll(CopyOnWriteList.java:75)
at hudson.util.PersistedList.addAll(PersistedList.java:78)
at jenkins.model.Jenkins.getACL(Jenkins.java:2272)
at hudson.model.Node.canTake(Node.java:364)
at hudson.model.Queue$JobOffer.canTake(Queue.java:278)
at hudson.model.Queue.maintain(Queue.java:1141)
at hudson.model.Queue$MaintainTask.doRun(Queue.java:2166)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:453)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:329)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:162)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:110)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:193)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:217)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:898)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:920)
at java.lang.Thread.run(Thread.java:736)

Dec 16, 2014 10:09:20 AM SEVERE hudson.triggers.SafeTimerTask run

Timer task hudson.model.Queue$MaintainTask@1b191b19 failed
java.lang.IncompatibleClassChangeError
at java.util.ArrayList.addAll(ArrayList.java:243)
at hudson.util.CopyOnWriteList.addAll(CopyOnWriteList.java:75)
at hudson.util.PersistedList.addAll(PersistedList.java:78)
at jenkins.model.Jenkins.getACL(Jenkins.java:2272)
at hudson.model.Node.canTake(Node.java:364)
at hudson.model.Queue$JobOffer.canTake(Queue.java:278)
at hudson.model.Queue.maintain(Queue.java:1141)
at hudson.model.Queue$MaintainTask.doRun(Queue.java:2166)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:453)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:329)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:162)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:110)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:193)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:217)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:898)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:920)
at java.lang.Thread.run(Thread.java:736)

Dec 16, 2014 10:09:25 AM SEVERE hudson.triggers.SafeTimerTask run

Timer task hudson.model.Queue$MaintainTask@1b191b19 failed
java.lang.IncompatibleClassChangeError
at java.util.ArrayList.addAll(ArrayList.java:243)
at hudson.util.CopyOnWriteList.addAll(CopyOnWriteList.java:75)
at hudson.util.PersistedList.addAll(PersistedList.java:78)
at jenkins.model.Jenkins.getACL(Jenkins.java:2272)
at hudson.model.Node.canTake(Node.java:364)
at hudson.model.Queue$JobOffer.canTake(Queue.java:278)
at hudson.model.Queue.maintain(Queue.java:1141)
at hudson.model.Queue$MaintainTask.doRun(Queue.java:2166)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:453)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:329)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:162)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:110)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:193)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:217)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:898)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:920)
at java.lang.Thread.run(Thread.java:736)

Dec 16, 2014 10:09:30 AM SEVERE hudson.triggers.SafeTimerTask run

Timer task hudson.model.Queue$MaintainTask@1b191b19 failed
java.lang.IncompatibleClassChangeError
at java.util.ArrayList.addAll(ArrayList.java:243)
at hudson.util.CopyOnWriteList.addAll(CopyOnWriteList.java:75)
at hudson.util.PersistedList.addAll(PersistedList.java:78)
at jenkins.model.Jenkins.getACL(Jenkins.java:2272)
at hudson.model.Node.canTake(Node.java:364)
at hudson.model.Queue$JobOffer.canTake(Queue.java:278)
at hudson.model.Queue.maintain(Queue.java:1141)
at hudson.model.Queue$MaintainTask.doRun(Queue.java:2166)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:453)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:329)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:162)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:110)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:193)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:217)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:898)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:920)
at java.lang.Thread.run(Thread.java:736)