Deadlock in com.thoughtworks.xstream.mapper.AnnotationMapper when Jenkins loads folders (see thread dump fragment, "www", "mobile" and "admin"are Jenkins folders).
Deadlock occur systematically when the stdout and stderr are routed to the shell console. The workaround is to route stdout and stderr to a file.
Attached:
- jenkins-startup.log: jenkins stdout & stderr
- deadlock.log: threaddump highlighting the dead lock in XStream
Java stack information for the threads listed above:
===================================================
"Loading job www":
at java.lang.Class.initAnnotationsIfNecessary(Class.java:3175)
- waiting to lock <0x00000007e22586b0> (a java.lang.Class for hudson.model.Job)
at java.lang.Class.getAnnotation(Class.java:3137)
at com.thoughtworks.xstream.mapper.AnnotationMapper$UnprocessedTypesSet.add(AnnotationMapper.java:625)
at com.thoughtworks.xstream.mapper.AnnotationMapper$UnprocessedTypesSet.add(AnnotationMapper.java:610)
at com.thoughtworks.xstream.mapper.AnnotationMapper.processAnnotations(AnnotationMapper.java:181)
at com.thoughtworks.xstream.mapper.AnnotationMapper.getLocalConverter(AnnotationMapper.java:153)
at com.thoughtworks.xstream.mapper.MapperWrapper.getLocalConverter(MapperWrapper.java:99)
at hudson.util.xstream.MapperDelegate.getLocalConverter(MapperDelegate.java:112)
at com.thoughtworks.xstream.mapper.MapperWrapper.getLocalConverter(MapperWrapper.java:99)
at hudson.util.RobustReflectionConverter.unmarshalField(RobustReflectionConverter.java:348)
at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:289)
at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:228)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:72)
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:50)
at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:134)
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:32)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1189)
at hudson.util.XStream2.unmarshal(XStream2.java:113)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1173)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:1053)
at hudson.XmlFile.read(XmlFile.java:142)
at hudson.model.Items.load(Items.java:275)
at hudson.model.ItemGroupMixIn.loadChildren(ItemGroupMixIn.java:105)
at com.cloudbees.hudson.plugins.folder.Folder.onLoad(Folder.java:238)
at hudson.model.Items.load(Items.java:276)
at jenkins.model.Jenkins$18.run(Jenkins.java:2588)
at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169)
at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282)
at jenkins.model.Jenkins$7.runTask(Jenkins.java:899)
at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210)
at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
"Loading job admin":
at java.lang.Class.initAnnotationsIfNecessary(Class.java:3175)
- waiting to lock <0x00000007e1dce000> (a java.lang.Class for hudson.model.Run)
at java.lang.Class.getAnnotation(Class.java:3137)
at com.thoughtworks.xstream.mapper.AnnotationMapper$UnprocessedTypesSet.add(AnnotationMapper.java:625)
at com.thoughtworks.xstream.mapper.AnnotationMapper$UnprocessedTypesSet.add(AnnotationMapper.java:610)
at com.thoughtworks.xstream.mapper.AnnotationMapper$1.add(AnnotationMapper.java:250)
at com.thoughtworks.xstream.mapper.AnnotationMapper$1.add(AnnotationMapper.java:245)
at com.thoughtworks.xstream.mapper.AnnotationMapper.addParametrizedTypes(AnnotationMapper.java:279)
at com.thoughtworks.xstream.mapper.AnnotationMapper.processTypes(AnnotationMapper.java:204)
- locked <0x00000007e22586b0> (a java.lang.Class for hudson.model.Job)
at com.thoughtworks.xstream.mapper.AnnotationMapper.processAnnotations(AnnotationMapper.java:182)
at com.thoughtworks.xstream.mapper.AnnotationMapper.defaultImplementationOf(AnnotationMapper.java:141)
at com.thoughtworks.xstream.mapper.MapperWrapper.defaultImplementationOf(MapperWrapper.java:46)
at hudson.util.xstream.MapperDelegate.defaultImplementationOf(MapperDelegate.java:59)
at com.thoughtworks.xstream.mapper.MapperWrapper.defaultImplementationOf(MapperWrapper.java:46)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:54)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:50)
at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:134)
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:32)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1189)
at hudson.util.XStream2.unmarshal(XStream2.java:113)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1173)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:1053)
at hudson.XmlFile.read(XmlFile.java:142)
at hudson.model.Items.load(Items.java:275)
at hudson.model.ItemGroupMixIn.loadChildren(ItemGroupMixIn.java:105)
at com.cloudbees.hudson.plugins.folder.Folder.onLoad(Folder.java:238)
at hudson.model.Items.load(Items.java:276)
at jenkins.model.Jenkins$18.run(Jenkins.java:2588)
at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169)
at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282)
at jenkins.model.Jenkins$7.runTask(Jenkins.java:899)
at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210)
at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
"Loading job mobile":
at java.lang.Class.initAnnotationsIfNecessary(Class.java:3175)
- waiting to lock <0x00000007e22586b0> (a java.lang.Class for hudson.model.Job)
at java.lang.Class.getAnnotation(Class.java:3137)
at com.thoughtworks.xstream.mapper.AnnotationMapper$UnprocessedTypesSet.add(AnnotationMapper.java:625)
at com.thoughtworks.xstream.mapper.AnnotationMapper$UnprocessedTypesSet.add(AnnotationMapper.java:610)
at com.thoughtworks.xstream.mapper.AnnotationMapper$1.add(AnnotationMapper.java:250)
at com.thoughtworks.xstream.mapper.AnnotationMapper$1.add(AnnotationMapper.java:245)
at com.thoughtworks.xstream.mapper.AnnotationMapper.addParametrizedTypes(AnnotationMapper.java:279)
at com.thoughtworks.xstream.mapper.AnnotationMapper.processTypes(AnnotationMapper.java:204)
- locked <0x00000007e1dce000> (a java.lang.Class for hudson.model.Run)
at com.thoughtworks.xstream.mapper.AnnotationMapper.processAnnotations(AnnotationMapper.java:182)
at com.thoughtworks.xstream.mapper.AnnotationMapper.defaultImplementationOf(AnnotationMapper.java:141)
at com.thoughtworks.xstream.mapper.MapperWrapper.defaultImplementationOf(MapperWrapper.java:46)
at hudson.util.xstream.MapperDelegate.defaultImplementationOf(MapperDelegate.java:59)
at com.thoughtworks.xstream.mapper.MapperWrapper.defaultImplementationOf(MapperWrapper.java:46)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:54)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:50)
at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:134)
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:32)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1189)
at hudson.util.XStream2.unmarshal(XStream2.java:113)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1173)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:1053)
at hudson.XmlFile.read(XmlFile.java:142)
at hudson.model.Items.load(Items.java:275)
at hudson.model.ItemGroupMixIn.loadChildren(ItemGroupMixIn.java:105)
at com.cloudbees.hudson.plugins.folder.Folder.onLoad(Folder.java:238)
at hudson.model.Items.load(Items.java:276)
at jenkins.model.Jenkins$18.run(Jenkins.java:2588)
at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169)
at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282)
at jenkins.model.Jenkins$7.runTask(Jenkins.java:899)
at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210)
at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Found 1 deadlock.
Bug
Major
JENKINS-19561 Unsafe & inefficient concurrency in XStream
