[JIRA] Created: (JENKINS-10318) ConcurrentModificationException reading config.xml on startup

ConcurrentModificationException reading config.xml on startup
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                 Key: JENKINS-10318
                 URL: https://issues.jenkins-ci.org/browse/JENKINS-10318
             Project: Jenkins
          Issue Type: Bug
          Components: core
            Reporter: Jesse Brand


Encountered the following error during startup. Some jobs do start, some jobs don't. Restarting hudson seems to solve the problemm.

SEVERE: Failed Loading job job-58
hudson.util.IOException2: Unable to read /data/hudson/workspace/jobs/job-58/config.xml
    at hudson.XmlFile.read(XmlFile.java:135)
    at hudson.model.Items.load(Items.java:114)
    at jenkins.model.Jenkins$14.run(Jenkins.java:2180)
    at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:146)
    at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259)
    at jenkins.model.Jenkins$5.runTask(Jenkins.java:724)
    at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:187)
    at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:94)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)
Caused by: com.thoughtworks.xstream.converters.ConversionException: null : null
---- Debugging information ----
cause-exception     : java.util.ConcurrentModificationException
cause-message       : null
class               : hudson.model.FreeStyleProject
required-type       : hudson.util.DescribableList
path                : /project/publishers/hudson.tasks.Mailer
line number         : 64
-------------------------------
    at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:89)
    at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:63)
    at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:76)
    at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:60)
    at hudson.util.RobustReflectionConverter.unmarshalField(RobustReflectionConverter.java:290)
    at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:233)
    at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:180)
    at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:82)
    at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:63)
    at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:76)
    at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:60)
    at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:137)
    at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:33)
    at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:926)
    at hudson.util.XStream2.unmarshal(XStream2.java:84)
    at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:912)
    at com.thoughtworks.xstream.XStream.fromXML(XStream.java:864)
    at hudson.XmlFile.read(XmlFile.java:131)
    ... 10 more
Caused by: java.util.ConcurrentModificationException
    at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1100)
    at java.util.TreeMap$KeyIterator.next(TreeMap.java:1154)
    at com.thoughtworks.xstream.core.util.PrioritizedList$PrioritizedItemIterator.next(PrioritizedList.java:91)
    at com.thoughtworks.xstream.core.DefaultConverterLookup.lookupConverterForType(DefaultConverterLookup.java:62)
    at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66)
    at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:60)
    at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.readItem(AbstractCollectionConverter.java:71)
    at hudson.util.CopyOnWriteList$ConverterImpl.unmarshal(CopyOnWriteList.java:189)
    at hudson.util.DescribableList$ConverterImpl.unmarshal(DescribableList.java:245)
    at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:82)
    ... 27 more


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David Ehrenberger commented on JENKINS-10318

ConcurrentModificationException reading config.xml on startup

This occurring often on v1.487. Please elevate in priority.

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David Ehrenberger commented on JENKINS-10318

ConcurrentModificationException reading config.xml on startup

For what its worth, the following error looks to be related to a coverity publisher: Nov 2, 2012 9:23:25 AM jenkins.InitReactorRunner$1 onTaskFailed SEVERE: Failed Loading job Job.Coverity hudson.util.IOException2: Unable to read /jenkins/jobs/Job.Coverity/config.xml at hudson.XmlFile.read(XmlFile.java:141) at hudson.model.Items.load(Items.java:220) at jenkins.model.Jenkins$17.run(Jenkins.java:2507) at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:146) at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259) at jenkins.model.Jenkins$7.runTask(Jenkins.java:883) at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:187) at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:94) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) Caused by: com.thoughtworks.xstream.converters.ConversionException: null : null ---- Debugging information ---- cause-exception : java.util.ConcurrentModificationException cause-message : null class : hudson.model.FreeStyleProject required-type : jenkins.plugins.coverity.CoverityPublisher path : /project/publishers/jenkins.plugins.coverity.CoverityPublisher/invocationAssistance line number : 76 ------------------------------- at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:89) at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:63) at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:76) at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:60) at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.readItem(AbstractCollectionConverter.java:71) at hudson.util.CopyOnWriteList$ConverterImpl.unmarshal(CopyOnWriteList.java:193) at hudson.util.DescribableList$ConverterImpl.unmarshal(DescribableList.java:263) at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:82) at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:63) at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:76) at hudson.util.RobustReflectionConverter.unmarshalField(RobustReflectionConverter.java:332) at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:274) at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:221) at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:82) at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:63) at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:76) at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:60) at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:137) at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:33) at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:926) at hudson.util.XStream2.unmarshal(XStream2.java:103) at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:912) at com.thoughtworks.xstream.XStream.fromXML(XStream.java:864) at hudson.XmlFile.read(XmlFile.java:137) ... 10 more Caused by: java.util.ConcurrentModificationException at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1100) at java.util.TreeMap$KeyIterator.next(TreeMap.java:1154) at com.thoughtworks.xstream.core.util.PrioritizedList$PrioritizedItemIterator.next(PrioritizedList.java:91) at com.thoughtworks.xstream.core.DefaultConverterLookup.lookupConverterForType(DefaultConverterLookup.java:62) at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66) at hudson.util.RobustReflectionConverter.unmarshalField(RobustReflectionConverter.java:332) at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:274) at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:221) at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:82) ... 33 more

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Michael Prokop commented on JENKINS-10318

ConcurrentModificationException reading config.xml on startup

Does anyone of you have your jenkins data shared on NFS (or similar) maybe? Which plugins do you use? I was just referred to this bug report via JENKINS-16082 and I'm wondering what might be the actual underlying issue causing this problem for just some us of all the Jenkins users.

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