Major Started by upstream project "project2" build number 383 FATAL: Failed to serialize hudson.model.Actionable#actions for class hudson.maven.MavenModuleSetBuild java.lang.RuntimeException: Failed to serialize hudson.model.Actionable#actions for class hudson.maven.MavenModuleSetBuild at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:164) at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:135) at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:120) at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:94) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) at com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98) at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38) at com.thoughtworks.xstream.XStream.marshal(XStream.java:840) at com.thoughtworks.xstream.XStream.marshal(XStream.java:829) at com.thoughtworks.xstream.XStream.toXML(XStream.java:804) at hudson.XmlFile.write(XmlFile.java:165) at org.jvnet.hudson.plugins.DownstreamBuildViewUpdateListener.save(DownstreamBuildViewUpdateListener.java:100) at org.jvnet.hudson.plugins.DownstreamBuildViewUpdateListener.onStarted(DownstreamBuildViewUpdateListener.java:88) at org.jvnet.hudson.plugins.DownstreamBuildViewUpdateListener.onStarted(DownstreamBuildViewUpdateListener.java:48) at hudson.model.listeners.RunListener.fireStarted(RunListener.java:139) at hudson.model.Run.run(Run.java:1236) at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:306) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:122) Caused by: java.lang.RuntimeException: Failed to serialize org.jvnet.hudson.plugins.AbstractDownstreamBuildViewAction#downstreamBuilds for class org.jvnet.hudson.plugins.DownstreamBuildViewAction at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:164) at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:135) at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:120) at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:94) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) at com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:55) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:172) at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:160) ... 21 more Caused by: java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793) at java.util.HashMap$EntryIterator.next(HashMap.java:834) at java.util.HashMap$EntryIterator.next(HashMap.java:832) at com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:54) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:172) at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:160) ... 35 more
- is duplicated by
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JENKINS-33527 Intermittent exception thrown when using plugin
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- Reopened
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[JENKINS-6644] hudson.util.RobustReflectionConverter.marshallField throws ConcurrentModificationException
This does not seem resolved to me. No indication associated with the issue nor have I found one in git. I have reproduced with 2.7.4.4 (jenkins.ci.cloudbees.com) with xstream 1.4.7-jenkins-1, xvnc plugin 1.23.
FATAL: Failed to serialize hudson.plugins.xvnc.Xvnc$DescriptorImpl#allocators for class hudson.plugins.xvnc.Xvnc$DescriptorImpl java.lang.RuntimeException: Failed to serialize hudson.plugins.xvnc.Xvnc$DescriptorImpl#allocators for class hudson.plugins.xvnc.Xvnc$DescriptorImpl at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:256) at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:224) at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:138) at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:209) at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:150) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:43) at com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:82) at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:37) at com.thoughtworks.xstream.XStream.marshal(XStream.java:1026) at com.thoughtworks.xstream.XStream.marshal(XStream.java:1015) at com.thoughtworks.xstream.XStream.toXML(XStream.java:988) at hudson.XmlFile.write(XmlFile.java:178) at hudson.model.Descriptor.save(Descriptor.java:864) at hudson.plugins.xvnc.DisplayAllocator.save(DisplayAllocator.java:32) at hudson.plugins.xvnc.DisplayAllocator.allocate(DisplayAllocator.java:51) at hudson.plugins.xvnc.Xvnc.doSetUp(Xvnc.java:104) at hudson.plugins.xvnc.Xvnc.setUp(Xvnc.java:94) at jenkins.tasks.SimpleBuildWrapper.setUp(SimpleBuildWrapper.java:145) at hudson.model.Build$BuildExecution.doRun(Build.java:156) at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:544) at hudson.model.Run.execute(Run.java:1741) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43) at hudson.model.ResourceController.execute(ResourceController.java:98) at hudson.model.Executor.run(Executor.java:410) Caused by: java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429) at java.util.HashMap$EntryIterator.next(HashMap.java:1463) at java.util.HashMap$EntryIterator.next(HashMap.java:1461) at com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:75) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84) at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:265) at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:252) ... 25 more
This aborted build early in the process.
Reassigning to the right plugin. I haven't looked at the code, but I recommend the use of ConcurrentHashMap instead of a plain HashMap to avoid concurrent update problems like this.